1OpenSSL CHANGES 2=============== 3 4This is a detailed breakdown of significant changes. For a high-level overview 5of changes in each release, see [NEWS.md](./NEWS.md). 6 7For a full list of changes, see the [git commit log][log] and pick the 8appropriate release branch. 9 10 [log]: https://github.com/openssl/openssl/commits/ 11 12OpenSSL Releases 13---------------- 14 15 - [OpenSSL 3.5](#openssl-35) 16 - [OpenSSL 3.4](#openssl-34) 17 - [OpenSSL 3.3](#openssl-33) 18 - [OpenSSL 3.2](#openssl-32) 19 - [OpenSSL 3.1](#openssl-31) 20 - [OpenSSL 3.0](#openssl-30) 21 - [OpenSSL 1.1.1](#openssl-111) 22 - [OpenSSL 1.1.0](#openssl-110) 23 - [OpenSSL 1.0.2](#openssl-102) 24 - [OpenSSL 1.0.1](#openssl-101) 25 - [OpenSSL 1.0.0](#openssl-100) 26 - [OpenSSL 0.9.x](#openssl-09x) 27 28OpenSSL 3.5 29----------- 30 31### Changes between 3.4 and 3.5 [xx XXX xxxx] 32 33* Support DEFAULT keyword and '-' prefix in SSL_CTX_set1_groups_list(). 34 SSL_CTX_set1_groups_list() now supports the DEFAULT keyword which sets the 35 available groups to the default selection. The '-' prefix allows the calling 36 application to remove a group from the selection. 37 38 *Frederik Wedel-Heinen* 39 40 * Updated the default encryption cipher for the `req`, `cms`, and `smime` applications 41 from `des-ede3-cbc` to `aes-256-cbc`. 42 43 AES-256 provides a stronger 256-bit key encryption than legacy 3DES. 44 45 *Aditya* 46 47 * Enhanced PKCS#7 inner contents verification. 48 In the PKCS7_verify() function, the BIO *indata parameter refers to the 49 signed data if the content is detached from p7. Otherwise, indata should be 50 NULL, and then the signed data must be in p7. 51 52 The previous OpenSSL implementation only supported MIME inner content 53 [RFC 5652, section 5.2]. 54 55 The added functionality now enables support for PKCS#7 inner content 56 [RFC 2315, section 7]. 57 58 *Małgorzata Olszówka* 59 60 * The `-rawin` option of the `pkeyutl` command is now implied (and thus no 61 longer required) when using `-digest` or when signing or verifying with an 62 Ed25519 or Ed448 key. 63 The `-digest` and `-rawin` option may only be given with `-sign` or `verify`. 64 65 *David von Oheimb* 66 67 * Optionally allow the FIPS provider to use the `JITTER` entropy source. 68 Note that using this option will require the resulting FIPS provider 69 to undergo entropy source validation [ESV] by the [CMVP], without this 70 the FIPS provider will not be FIPS compliant. Enable this using the 71 configuration option `enable-fips-jitter`. 72 73 *Paul Dale* 74 75OpenSSL 3.4 76----------- 77 78### Changes between 3.3 and 3.4 [xx XXX xxxx] 79 80 * For the FIPS provider only, replaced the primary DRBG with a continuous 81 health check module. This also removes the now forbidden DRBG chaining. 82 83 *Paul Dale* 84 85 * Improved base64 BIO correctness and error reporting. 86 87 *Viktor Dukhovni* 88 89 * Added support for directly fetched composite signature algorithms such as 90 RSA-SHA2-256 including new API functions in the EVP_PKEY_sign, 91 EVP_PKEY_verify and EVP_PKEY_verify_recover groups. 92 93 *Richard Levitte* 94 95 * XOF Digest API improvements 96 97 EVP_MD_CTX_get_size() and EVP_MD_CTX_size are macros that were aliased to 98 EVP_MD_get_size which returns a constant value. XOF Digests such as SHAKE 99 have an output size that is not fixed, so calling EVP_MD_get_size() is not 100 sufficent. The existing macros now point to the new function 101 EVP_MD_CTX_get_size_ex() which will retrieve the "size" for a XOF digest, 102 otherwise it falls back to calling EVP_MD_get_size(). Note that the SHAKE 103 implementation did not have a context getter previously, so the "size" will 104 only be able to be retrieved with new providers. 105 106 Also added a EVP_xof() helper. 107 108 *Shane Lontis* 109 110 * Added FIPS indicators to the FIPS provider. 111 112 FIPS 140-3 requires indicators to be used if the FIPS provider allows 113 non-approved algorithms. An algorithm is approved if it passes all 114 required checks such as minimum key size. By default an error will 115 occur if any check fails. For backwards compatibility individual 116 algorithms may override the checks by using either an option in the 117 FIPS configuration OR in code using an algorithm context setter. 118 Overriding the check means that the algorithm is not FIPS compliant. 119 OSSL_INDICATOR_set_callback() can be called to register a callback 120 to log unapproved algorithms. At the end of any algorithm operation 121 the approved status can be queried using an algorithm context getter. 122 FIPS provider configuration options are set using 'openssl fipsinstall'. 123 124 Note that new FIPS 140-3 restrictions have been enforced such as 125 RSA Encryption using PKCS1 padding is no longer approved. 126 Documentation related to the changes can be found on the [fips_module(7)] 127 manual page. 128 129 [fips_module(7)]: https://docs.openssl.org/master/man7/fips_module/#FIPS indicators 130 131 *Shane Lontis, Paul Dale, Po-Hsing Wu and Dimitri John Ledkov* 132 133 * Added support for hardware acceleration for HMAC on S390x architecture. 134 135 *Ingo Franzki* 136 137 * Added debuginfo Makefile target for unix platforms to produce 138 a separate DWARF info file from the corresponding shared libs. 139 140 *Neil Horman* 141 142 * Added support for encapsulation and decapsulation operations in the 143 pkeyutl command. 144 145 *Dmitry Belyavskiy* 146 147 * Added implementation of RFC 9579 (PBMAC1) in PKCS#12. 148 149 *Dmitry Belyavskiy* 150 151 * Add a new random seed source RNG `JITTER` using a statically linked 152 jitterentropy library. 153 154 *Dimitri John Ledkov* 155 156 * Added a feature to retrieve configured TLS signature algorithms, 157 e.g., via the openssl list command. 158 159 *Michael Baentsch* 160 161 * Deprecated TS_VERIFY_CTX_set_* functions and added replacement 162 TS_VERIFY_CTX_set0_* functions with improved semantics. 163 164 *Tobias Erbsland* 165 166 * Redesigned Windows use of OPENSSLDIR/ENGINESDIR/MODULESDIR such that 167 what were formerly build time locations can now be defined at run time 168 with registry keys. See NOTES-WINDOWS.md. 169 170 *Neil Horman* 171 172 * Added options `-not_before` and `-not_after` for explicit setting 173 start and end dates of certificates created with the `req` and `x509` 174 commands. Added the same options also to `ca` command as alias for 175 `-startdate` and `-enddate` options. 176 177 *Stephan Wurm* 178 179 * The X25519 and X448 key exchange implementation in the FIPS provider 180 is unapproved and has `fips=no` property. 181 182 *Tomáš Mráz* 183 184 * SHAKE-128 and SHAKE-256 implementations have no default digest length 185 anymore. That means these algorithms cannot be used with 186 EVP_DigestFinal/_ex() unless the `xoflen` param is set before. 187 188 This change was necessary because the preexisting default lengths were 189 half the size necessary for full collision resistance supported by these 190 algorithms. 191 192 *Tomáš Mráz* 193 194 * Setting `config_diagnostics=1` in the config file will cause errors to 195 be returned from SSL_CTX_new() and SSL_CTX_new_ex() if there is an error 196 in the ssl module configuration. 197 198 *Tomáš Mráz* 199 200 * An empty renegotiate extension will be used in TLS client hellos instead 201 of the empty renegotiation SCSV, for all connections with a minimum TLS 202 version > 1.0. 203 204 *Tim Perry* 205 206 * Added support for integrity-only cipher suites TLS_SHA256_SHA256 and 207 TLS_SHA384_SHA384 in TLS 1.3, as defined in RFC 9150. 208 209 This work was sponsored by Siemens AG. 210 211 *Rajeev Ranjan* 212 213 * Added support for requesting CRL in CMP. 214 215 This work was sponsored by Siemens AG. 216 217 *Rajeev Ranjan* 218 219 * Added support for issuedOnBehalfOf, auditIdentity, basicAttConstraints, 220 userNotice, acceptablePrivilegePolicies, acceptableCertPolicies, 221 subjectDirectoryAttributes, associatedInformation, delegatedNameConstraints, 222 holderNameConstraints and targetingInformation X.509v3 extensions. 223 224 *Jonathan M. Wilbur* 225 226 * Added Attribute Certificate (RFC 5755) support. Attribute 227 Certificates can be created, parsed, modified and printed via the 228 public API. There is no command-line tool support at this time. 229 230 *Damian Hobson-Garcia* 231 232 * Added support to build Position Independent Executables (PIE). Configuration 233 option `enable-pie` configures the cflag '-fPIE' and ldflag '-pie' to 234 support Address Space Layout Randomization (ASLR) in the openssl executable, 235 removes reliance on external toolchain configurations. 236 237 *Craig Lorentzen* 238 239 * SSL_SESSION_get_time()/SSL_SESSION_set_time()/SSL_CTX_flush_sessions() have 240 been deprecated in favour of their respective ..._ex() replacement functions 241 which are Y2038-safe. 242 243 *Alexander Kanavin* 244 245 * ECC groups may now customize their initialization to save CPU by using 246 precomputed values. This is used by the P-256 implementation. 247 248 *Watson Ladd* 249 250OpenSSL 3.3 251----------- 252 253### Changes between 3.3.2 and 3.3.3 [xx XXX xxxx] 254 255 * Fixed possible OOB memory access with invalid low-level GF(2^m) elliptic 256 curve parameters. 257 258 Use of the low-level GF(2^m) elliptic curve APIs with untrusted 259 explicit values for the field polynomial can lead to out-of-bounds memory 260 reads or writes. 261 Applications working with "exotic" explicit binary (GF(2^m)) curve 262 parameters, that make it possible to represent invalid field polynomials 263 with a zero constant term, via the above or similar APIs, may terminate 264 abruptly as a result of reading or writing outside of array bounds. Remote 265 code execution cannot easily be ruled out. 266 267 ([CVE-2024-9143]) 268 269 *Viktor Dukhovni* 270 271### Changes between 3.3.1 and 3.3.2 [3 Sep 2024] 272 273 * Fixed possible denial of service in X.509 name checks. 274 275 Applications performing certificate name checks (e.g., TLS clients checking 276 server certificates) may attempt to read an invalid memory address when 277 comparing the expected name with an `otherName` subject alternative name of 278 an X.509 certificate. This may result in an exception that terminates the 279 application program. 280 281 ([CVE-2024-6119]) 282 283 *Viktor Dukhovni* 284 285 * Fixed possible buffer overread in SSL_select_next_proto(). 286 287 Calling the OpenSSL API function SSL_select_next_proto with an empty 288 supported client protocols buffer may cause a crash or memory contents 289 to be sent to the peer. 290 291 ([CVE-2024-5535]) 292 293 *Matt Caswell* 294 295### Changes between 3.3.0 and 3.3.1 [4 Jun 2024] 296 297 * Fixed potential use after free after SSL_free_buffers() is called. 298 299 The SSL_free_buffers function is used to free the internal OpenSSL 300 buffer used when processing an incoming record from the network. 301 The call is only expected to succeed if the buffer is not currently 302 in use. However, two scenarios have been identified where the buffer 303 is freed even when still in use. 304 305 The first scenario occurs where a record header has been received 306 from the network and processed by OpenSSL, but the full record body 307 has not yet arrived. In this case calling SSL_free_buffers will succeed 308 even though a record has only been partially processed and the buffer 309 is still in use. 310 311 The second scenario occurs where a full record containing application 312 data has been received and processed by OpenSSL but the application has 313 only read part of this data. Again a call to SSL_free_buffers will 314 succeed even though the buffer is still in use. 315 316 ([CVE-2024-4741]) 317 318 *Matt Caswell* 319 320 * Fixed an issue where checking excessively long DSA keys or parameters may 321 be very slow. 322 323 Applications that use the functions EVP_PKEY_param_check() or 324 EVP_PKEY_public_check() to check a DSA public key or DSA parameters may 325 experience long delays. Where the key or parameters that are being checked 326 have been obtained from an untrusted source this may lead to a Denial of 327 Service. 328 329 To resolve this issue DSA keys larger than OPENSSL_DSA_MAX_MODULUS_BITS 330 will now fail the check immediately with a DSA_R_MODULUS_TOO_LARGE error 331 reason. 332 333 ([CVE-2024-4603]) 334 335 *Tomáš Mráz* 336 337 * Improved EC/DSA nonce generation routines to avoid bias and timing 338 side channel leaks. 339 340 Thanks to Florian Sieck from Universität zu Lübeck and George Pantelakis 341 and Hubert Kario from Red Hat for reporting the issues. 342 343 *Tomáš Mráz and Paul Dale* 344 345### Changes between 3.2 and 3.3.0 [9 Apr 2024] 346 347 * The `-verify` option to the `openssl crl` and `openssl req` will make 348 the program exit with 1 on failure. 349 350 *Vladimír Kotal* 351 352 * The BIO_get_new_index() function can only be called 127 times before it 353 reaches its upper bound of BIO_TYPE_MASK. It will now correctly return an 354 error of -1 once it is exhausted. Users may need to reserve using this 355 function for cases where BIO_find_type() is required. Either BIO_TYPE_NONE 356 or BIO_get_new_index() can be used to supply a type to BIO_meth_new(). 357 358 *Shane Lontis* 359 360 * Added API functions SSL_SESSION_get_time_ex(), SSL_SESSION_set_time_ex() 361 using time_t which is Y2038 safe on 32 bit systems when 64 bit time 362 is enabled (e.g via setting glibc macro _TIME_BITS=64). 363 364 *Ijtaba Hussain* 365 366 * The d2i_ASN1_GENERALIZEDTIME(), d2i_ASN1_UTCTIME(), ASN1_TIME_check(), and 367 related functions have been augmented to check for a minimum length of 368 the input string, in accordance with ITU-T X.690 section 11.7 and 11.8. 369 370 *Job Snijders* 371 372 * Unknown entries in TLS SignatureAlgorithms, ClientSignatureAlgorithms 373 config options and the respective calls to SSL[_CTX]_set1_sigalgs() and 374 SSL[_CTX]_set1_client_sigalgs() that start with `?` character are 375 ignored and the configuration will still be used. 376 377 Similarly unknown entries that start with `?` character in a TLS 378 Groups config option or set with SSL[_CTX]_set1_groups_list() are ignored 379 and the configuration will still be used. 380 381 In both cases if the resulting list is empty, an error is returned. 382 383 *Tomáš Mráz* 384 385 * The EVP_PKEY_fromdata function has been augmented to allow for the derivation 386 of CRT (Chinese Remainder Theorem) parameters when requested. See the 387 OSSL_PKEY_PARAM_RSA_DERIVE_FROM_PQ param in the EVP_PKEY-RSA documentation. 388 389 *Neil Horman* 390 391 * The activate and soft_load configuration settings for providers in 392 openssl.cnf have been updated to require a value of [1|yes|true|on] 393 (in lower or UPPER case) to enable the setting. Conversely a value 394 of [0|no|false|off] will disable the setting. All other values, or the 395 omission of a value for these settings will result in an error. 396 397 *Neil Horman* 398 399 * Added `-set_issuer` and `-set_subject` options to `openssl x509` to 400 override the Issuer and Subject when creating a certificate. The `-subj` 401 option now is an alias for `-set_subject`. 402 403 *Job Snijders, George Michaelson* 404 405 * OPENSSL_sk_push() and sk_<TYPE>_push() functions now return 0 instead of -1 406 if called with a NULL stack argument. 407 408 *Tomáš Mráz* 409 410 * In `openssl speed`, changed the default hash function used with `hmac` from 411 `md5` to `sha256`. 412 413 *James Muir* 414 415 * Added several new features of CMPv3 defined in RFC 9480 and RFC 9483: 416 - `certProfile` request message header and respective `-profile` CLI option 417 - support for delayed delivery of all types of response messages 418 419 *David von Oheimb* 420 421 * The build of exporters (such as `.pc` files for pkg-config) cleaned up to 422 be less hard coded in the build file templates, and to allow easier 423 addition of more exporters. With that, an exporter for CMake is also 424 added. 425 426 *Richard Levitte* 427 428 * The BLAKE2s hash algorithm matches BLAKE2b's support 429 for configurable output length. 430 431 *Ahelenia Ziemiańska* 432 433 * New option `SSL_OP_PREFER_NO_DHE_KEX`, which allows configuring a TLS1.3 434 server to prefer session resumption using PSK-only key exchange over PSK 435 with DHE, if both are available. 436 437 *Markus Minichmayr, Tapkey GmbH* 438 439 * New API `SSL_write_ex2`, which can be used to send an end-of-stream (FIN) 440 condition in an optimised way when using QUIC. 441 442 *Hugo Landau* 443 444 * New atexit configuration switch, which controls whether the OPENSSL_cleanup 445 is registered when libcrypto is unloaded. This is turned off on NonStop 446 configurations because of loader differences on that platform compared to 447 Linux. 448 449 *Randall S. Becker* 450 451 * Support for qlog for tracing QUIC connections has been added. 452 453 The qlog output from OpenSSL currently uses a pre-standard draft version of 454 qlog. The output from OpenSSL will change in incompatible ways in future 455 releases, and is not subject to any format stability or compatibility 456 guarantees at this time. This functionality can be 457 disabled with the build-time option `no-unstable-qlog`. See the 458 openssl-qlog(7) manpage for details. 459 460 *Hugo Landau* 461 462 * Added APIs to allow configuring the negotiated idle timeout for QUIC 463 connections, and to allow determining the number of additional streams 464 that can currently be created for a QUIC connection. 465 466 *Hugo Landau* 467 468 * Added APIs to allow disabling implicit QUIC event processing for 469 QUIC SSL objects, allowing applications to control when event handling 470 occurs. Refer to the SSL_get_value_uint(3) manpage for details. 471 472 *Hugo Landau* 473 474 * Limited support for polling of QUIC connection and stream objects in a 475 non-blocking manner. Refer to the SSL_poll(3) manpage for details. 476 477 *Hugo Landau* 478 479 * Added APIs to allow querying the size and utilisation of a QUIC stream's 480 write buffer. Refer to the SSL_get_value_uint(3) manpage for details. 481 482 *Hugo Landau* 483 484 * New limit on HTTP response headers is introduced to HTTP client. The 485 default limit is set to 256 header lines. If limit is exceeded the 486 response processing stops with error HTTP_R_RESPONSE_TOO_MANY_HDRLINES. 487 Application may call OSSL_HTTP_REQ_CTX_set_max_response_hdr_lines(3) 488 to change the default. Setting the value to 0 disables the limit. 489 490 *Alexandr Nedvedicky* 491 492 * Applied AES-GCM unroll8 optimisation to Microsoft Azure Cobalt 100 493 494 *Tom Cosgrove* 495 496 * Added X509_STORE_get1_objects to avoid issues with the existing 497 X509_STORE_get0_objects API in multi-threaded applications. Refer to the 498 documentation for details. 499 500 *David Benjamin* 501 502 * Added assembly implementation for md5 on loongarch64 503 504 *Min Zhou* 505 506 * Optimized AES-CTR for ARM Neoverse V1 and V2 507 508 *Fisher Yu* 509 510 * Enable AES and SHA3 optimisations on Apple Silicon M3-based MacOS systems 511 similar to M1/M2. 512 513 *Tom Cosgrove* 514 515 * Added a new EVP_DigestSqueeze() API. This allows SHAKE to squeeze multiple 516 times with different output sizes. 517 518 *Shane Lontis, Holger Dengler* 519 520 * Various optimizations for cryptographic routines using RISC-V vector crypto 521 extensions 522 523 *Christoph Müllner, Charalampos Mitrodimas, Ard Biesheuvel, Phoebe Chen, 524 Jerry Shih* 525 526 * Accept longer context for TLS 1.2 exporters 527 528 While RFC 5705 implies that the maximum length of a context for exporters is 529 65535 bytes as the length is embedded in uint16, the previous implementation 530 enforced a much smaller limit, which is less than 1024 bytes. This 531 restriction has been removed. 532 533 *Daiki Ueno* 534 535OpenSSL 3.2 536----------- 537 538### Changes between 3.2.1 and 3.2.2 [xx XXX xxxx] 539 540 * Fixed an issue where some non-default TLS server configurations can cause 541 unbounded memory growth when processing TLSv1.3 sessions. An attacker may 542 exploit certain server configurations to trigger unbounded memory growth that 543 would lead to a Denial of Service 544 545 This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option 546 is being used (but not if early_data is also configured and the default 547 anti-replay protection is in use). In this case, under certain conditions, 548 the session cache can get into an incorrect state and it will fail to flush 549 properly as it fills. The session cache will continue to grow in an unbounded 550 manner. A malicious client could deliberately create the scenario for this 551 failure to force a Denial of Service. It may also happen by accident in 552 normal operation. 553 554 ([CVE-2024-2511]) 555 556 *Matt Caswell* 557 558 * Fixed bug where SSL_export_keying_material() could not be used with QUIC 559 connections. (#23560) 560 561 *Hugo Landau* 562 563### Changes between 3.2.0 and 3.2.1 [30 Jan 2024] 564 565 * A file in PKCS12 format can contain certificates and keys and may come from 566 an untrusted source. The PKCS12 specification allows certain fields to be 567 NULL, but OpenSSL did not correctly check for this case. A fix has been 568 applied to prevent a NULL pointer dereference that results in OpenSSL 569 crashing. If an application processes PKCS12 files from an untrusted source 570 using the OpenSSL APIs then that application will be vulnerable to this 571 issue prior to this fix. 572 573 OpenSSL APIs that were vulnerable to this are: PKCS12_parse(), 574 PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() 575 and PKCS12_newpass(). 576 577 We have also fixed a similar issue in SMIME_write_PKCS7(). However since this 578 function is related to writing data we do not consider it security 579 significant. 580 581 ([CVE-2024-0727]) 582 583 *Matt Caswell* 584 585 * When function EVP_PKEY_public_check() is called on RSA public keys, 586 a computation is done to confirm that the RSA modulus, n, is composite. 587 For valid RSA keys, n is a product of two or more large primes and this 588 computation completes quickly. However, if n is an overly large prime, 589 then this computation would take a long time. 590 591 An application that calls EVP_PKEY_public_check() and supplies an RSA key 592 obtained from an untrusted source could be vulnerable to a Denial of Service 593 attack. 594 595 The function EVP_PKEY_public_check() is not called from other OpenSSL 596 functions however it is called from the OpenSSL pkey command line 597 application. For that reason that application is also vulnerable if used 598 with the "-pubin" and "-check" options on untrusted data. 599 600 To resolve this issue RSA keys larger than OPENSSL_RSA_MAX_MODULUS_BITS will 601 now fail the check immediately with an RSA_R_MODULUS_TOO_LARGE error reason. 602 603 ([CVE-2023-6237]) 604 605 *Tomáš Mráz* 606 607 * Restore the encoding of SM2 PrivateKeyInfo and SubjectPublicKeyInfo to 608 have the contained AlgorithmIdentifier.algorithm set to id-ecPublicKey 609 rather than SM2. 610 611 *Richard Levitte* 612 613 * The POLY1305 MAC (message authentication code) implementation in OpenSSL 614 for PowerPC CPUs saves the contents of vector registers in different 615 order than they are restored. Thus the contents of some of these vector 616 registers is corrupted when returning to the caller. The vulnerable code is 617 used only on newer PowerPC processors supporting the PowerISA 2.07 618 instructions. 619 620 The consequences of this kind of internal application state corruption can 621 be various - from no consequences, if the calling application does not 622 depend on the contents of non-volatile XMM registers at all, to the worst 623 consequences, where the attacker could get complete control of the 624 application process. However unless the compiler uses the vector registers 625 for storing pointers, the most likely consequence, if any, would be an 626 incorrect result of some application dependent calculations or a crash 627 leading to a denial of service. 628 629 ([CVE-2023-6129]) 630 631 *Rohan McLure* 632 633 * Disable building QUIC server utility when OpenSSL is configured with 634 `no-apps`. 635 636 *Vitalii Koshura* 637 638### Changes between 3.1 and 3.2.0 [23 Nov 2023] 639 640 * Fix excessive time spent in DH check / generation with large Q parameter 641 value. 642 643 Applications that use the functions DH_generate_key() to generate an 644 X9.42 DH key may experience long delays. Likewise, applications that use 645 DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() 646 to check an X9.42 DH key or X9.42 DH parameters may experience long delays. 647 Where the key or parameters that are being checked have been obtained from 648 an untrusted source this may lead to a Denial of Service. 649 650 ([CVE-2023-5678]) 651 652 *Richard Levitte* 653 654 * The BLAKE2b hash algorithm supports a configurable output length 655 by setting the "size" parameter. 656 657 *Čestmír Kalina and Tomáš Mráz* 658 659 * Enable extra Arm64 optimization on Windows for GHASH, RAND and AES. 660 661 *Evgeny Karpov* 662 663 * Added a function to delete objects from store by URI - OSSL_STORE_delete() 664 and the corresponding provider-storemgmt API function 665 OSSL_FUNC_store_delete(). 666 667 *Dmitry Belyavskiy* 668 669 * Added OSSL_FUNC_store_open_ex() provider-storemgmt API function to pass 670 a passphrase callback when opening a store. 671 672 *Simo Sorce* 673 674 * Changed the default salt length used by PBES2 KDF's (PBKDF2 and scrypt) 675 from 8 bytes to 16 bytes. 676 The PKCS5 (RFC 8018) standard uses a 64 bit salt length for PBE, and 677 recommends a minimum of 64 bits for PBES2. For FIPS compliance PBKDF2 678 requires a salt length of 128 bits. This affects OpenSSL command line 679 applications such as "genrsa" and "pkcs8" and API's such as 680 PEM_write_bio_PrivateKey() that are reliant on the default value. 681 The additional commandline option 'saltlen' has been added to the 682 OpenSSL command line applications for "pkcs8" and "enc" to allow the 683 salt length to be set to a non default value. 684 685 *Shane Lontis* 686 687 * Changed the default value of the `ess_cert_id_alg` configuration 688 option which is used to calculate the TSA's public key certificate 689 identifier. The default algorithm is updated to be sha256 instead 690 of sha1. 691 692 *Małgorzata Olszówka* 693 694 * Added optimization for SM2 algorithm on aarch64. It uses a huge precomputed 695 table for point multiplication of the base point, which increases the size of 696 libcrypto from 4.4 MB to 4.9 MB. A new configure option `no-sm2-precomp` has 697 been added to disable the precomputed table. 698 699 *Xu Yizhou* 700 701 * Added client side support for QUIC 702 703 *Hugo Landau, Matt Caswell, Paul Dale, Tomáš Mráz, Richard Levitte* 704 705 * Added multiple tutorials on the OpenSSL library and in particular 706 on writing various clients (using TLS and QUIC protocols) with libssl. 707 708 *Matt Caswell* 709 710 * Added secp384r1 implementation using Solinas' reduction to improve 711 speed of the NIST P-384 elliptic curve. To enable the implementation 712 the build option `enable-ec_nistp_64_gcc_128` must be used. 713 714 *Rohan McLure* 715 716 * Improved RFC7468 compliance of the asn1parse command. 717 718 *Matthias St. Pierre* 719 720 * Added SHA256/192 algorithm support. 721 722 *Fergus Dall* 723 724 * Added support for securely getting root CA certificate update in 725 CMP. 726 727 *David von Oheimb* 728 729 * Improved contention on global write locks by using more read locks where 730 appropriate. 731 732 *Matt Caswell* 733 734 * Improved performance of OSSL_PARAM lookups in performance critical 735 provider functions. 736 737 *Paul Dale* 738 739 * Added the SSL_get0_group_name() function to provide access to the 740 name of the group used for the TLS key exchange. 741 742 *Alex Bozarth* 743 744 * Provide a new configure option `no-http` that can be used to disable the 745 HTTP support. Provide new configure options `no-apps` and `no-docs` to 746 disable building the openssl command line application and the documentation. 747 748 *Vladimír Kotal* 749 750 * Provide a new configure option `no-ecx` that can be used to disable the 751 X25519, X448, and EdDSA support. 752 753 *Yi Li* 754 755 * When multiple OSSL_KDF_PARAM_INFO parameters are passed to 756 the EVP_KDF_CTX_set_params() function they are now concatenated not just 757 for the HKDF algorithm but also for SSKDF and X9.63 KDF algorithms. 758 759 *Paul Dale* 760 761 * Added OSSL_FUNC_keymgmt_im/export_types_ex() provider functions that get 762 the provider context as a parameter. 763 764 *Ingo Franzki* 765 766 * TLS round-trip time calculation was added by a Brigham Young University 767 Capstone team partnering with Sandia National Laboratories. A new function 768 in ssl_lib titled SSL_get_handshake_rtt will calculate and retrieve this 769 value. 770 771 *Jairus Christensen* 772 773 * Added the "-quic" option to s_client to enable connectivity to QUIC servers. 774 QUIC requires the use of ALPN, so this must be specified via the "-alpn" 775 option. Use of the "advanced" s_client command command via the "-adv" option 776 is recommended. 777 778 *Matt Caswell* 779 780 * Added an "advanced" command mode to s_client. Use this with the "-adv" 781 option. The old "basic" command mode recognises certain letters that must 782 always appear at the start of a line and cannot be escaped. The advanced 783 command mode enables commands to be entered anywhere and there is an 784 escaping mechanism. After starting s_client with "-adv" type "{help}" 785 to show a list of available commands. 786 787 *Matt Caswell* 788 789 * Add Raw Public Key (RFC7250) support. Authentication is supported 790 by matching keys against either local policy (TLSA records synthesised 791 from the expected keys) or DANE (TLSA records obtained by the 792 application from DNS). TLSA records will also match the same key in 793 the server certificate, should RPK use not happen to be negotiated. 794 795 *Todd Short* 796 797 * Added support for modular exponentiation and CRT offloading for the 798 S390x architecture. 799 800 *Juergen Christ* 801 802 * Added further assembler code for the RISC-V architecture. 803 804 *Christoph Müllner* 805 806 * Added EC_GROUP_to_params() which creates an OSSL_PARAM array 807 from a given EC_GROUP. 808 809 *Oliver Mihatsch* 810 811 * Improved support for non-default library contexts and property queries 812 when parsing PKCS#12 files. 813 814 *Shane Lontis* 815 816 * Implemented support for all five instances of EdDSA from RFC8032: 817 Ed25519, Ed25519ctx, Ed25519ph, Ed448, and Ed448ph. 818 The streaming is not yet supported for the HashEdDSA variants 819 (Ed25519ph and Ed448ph). 820 821 *James Muir* 822 823 * Added SM4 optimization for ARM processors using ASIMD and AES HW 824 instructions. 825 826 *Xu Yizhou* 827 828 * Implemented SM4-XTS support. 829 830 *Xu Yizhou* 831 832 * Added platform-agnostic OSSL_sleep() function. 833 834 *Richard Levitte* 835 836 * Implemented deterministic ECDSA signatures (RFC6979) support. 837 838 *Shane Lontis* 839 840 * Implemented AES-GCM-SIV (RFC8452) support. 841 842 *Todd Short* 843 844 * Added support for pluggable (provider-based) TLS signature algorithms. 845 This enables TLS 1.3 authentication operations with algorithms embedded 846 in providers not included by default in OpenSSL. In combination with 847 the already available pluggable KEM and X.509 support, this enables 848 for example suitable providers to deliver post-quantum or quantum-safe 849 cryptography to OpenSSL users. 850 851 *Michael Baentsch* 852 853 * Added support for pluggable (provider-based) CMS signature algorithms. 854 This enables CMS sign and verify operations with algorithms embedded 855 in providers not included by default in OpenSSL. 856 857 *Michael Baentsch* 858 859 * Added support for Hybrid Public Key Encryption (HPKE) as defined 860 in RFC9180. HPKE is required for TLS Encrypted ClientHello (ECH), 861 Message Layer Security (MLS) and other IETF specifications. 862 HPKE can also be used by other applications that require 863 encrypting "to" an ECDH public key. External APIs are defined in 864 include/openssl/hpke.h and documented in doc/man3/OSSL_HPKE_CTX_new.pod 865 866 *Stephen Farrell* 867 868 * Implemented HPKE DHKEM support in providers used by HPKE (RFC9180) 869 API. 870 871 *Shane Lontis* 872 873 * Add support for certificate compression (RFC8879), including 874 library support for Brotli and Zstandard compression. 875 876 *Todd Short* 877 878 * Add the ability to add custom attributes to PKCS12 files. Add a new API 879 PKCS12_create_ex2, identical to the existing PKCS12_create_ex but allows 880 for a user specified callback and optional argument. 881 Added a new PKCS12_SAFEBAG_set0_attr, which allows for a new attr to be 882 added to the existing STACK_OF attrs. 883 884 *Graham Woodward* 885 886 * Major refactor of the libssl record layer. 887 888 *Matt Caswell* 889 890 * Add a mac salt length option for the pkcs12 command. 891 892 *Xinping Chen* 893 894 * Add more SRTP protection profiles from RFC8723 and RFC8269. 895 896 *Kijin Kim* 897 898 * Extended Kernel TLS (KTLS) to support TLS 1.3 receive offload. 899 900 *Daiki Ueno, John Baldwin and Dmitry Podgorny* 901 902 * Add support for TCP Fast Open (RFC7413) to macOS, Linux, and FreeBSD where 903 supported and enabled. 904 905 *Todd Short* 906 907 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 908 to the list of ciphersuites providing Perfect Forward Secrecy as 909 required by SECLEVEL >= 3. 910 911 *Dmitry Belyavskiy, Nicola Tuveri* 912 913 * Add new SSL APIs to aid in efficiently implementing TLS/SSL fingerprinting. 914 The SSL_CTRL_GET_IANA_GROUPS control code, exposed as the 915 SSL_get0_iana_groups() function-like macro, retrieves the list of 916 supported groups sent by the peer. 917 The function SSL_client_hello_get_extension_order() populates 918 a caller-supplied array with the list of extension types present in the 919 ClientHello, in order of appearance. 920 921 *Phus Lu* 922 923 * Fixed PEM_write_bio_PKCS8PrivateKey() and PEM_write_bio_PKCS8PrivateKey_nid() 924 to make it possible to use empty passphrase strings. 925 926 *Darshan Sen* 927 928 * The PKCS12_parse() function now supports MAC-less PKCS12 files. 929 930 *Daniel Fiala* 931 932 * Added ASYNC_set_mem_functions() and ASYNC_get_mem_functions() calls to be able 933 to change functions used for allocating the memory of asynchronous call stack. 934 935 *Arran Cudbard-Bell* 936 937 * Added support for signed BIGNUMs in the OSSL_PARAM APIs. 938 939 *Richard Levitte* 940 941 * A failure exit code is returned when using the openssl x509 command to check 942 certificate attributes and the checks fail. 943 944 *Rami Khaldi* 945 946 * The default SSL/TLS security level has been changed from 1 to 2. RSA, 947 DSA and DH keys of 1024 bits and above and less than 2048 bits and ECC keys 948 of 160 bits and above and less than 224 bits were previously accepted by 949 default but are now no longer allowed. By default TLS compression was 950 already disabled in previous OpenSSL versions. At security level 2 it cannot 951 be enabled. 952 953 *Matt Caswell* 954 955 * The SSL_CTX_set_cipher_list family functions now accept ciphers using their 956 IANA standard names. 957 958 *Erik Lax* 959 960 * The PVK key derivation function has been moved from b2i_PVK_bio_ex() into 961 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 962 will need to load the legacy crypto provider. 963 964 *Paul Dale* 965 966 * CCM8 cipher suites in TLS have been downgraded to security level zero 967 because they use a short authentication tag which lowers their strength. 968 969 *Paul Dale* 970 971 * Subject or issuer names in X.509 objects are now displayed as UTF-8 strings 972 by default. Also spaces surrounding `=` in DN output are removed. 973 974 *Dmitry Belyavskiy* 975 976 * Add X.509 certificate codeSigning purpose and related checks on key usage and 977 extended key usage of the leaf certificate according to the CA/Browser Forum. 978 979 * Lutz Jänicke* 980 981 * The `x509`, `ca`, and `req` commands now produce X.509 v3 certificates. 982 The `-x509v1` option of `req` prefers generation of X.509 v1 certificates. 983 `X509_sign()` and `X509_sign_ctx()` make sure that the certificate has 984 X.509 version 3 if the certificate information includes X.509 extensions. 985 986 *David von Oheimb* 987 988 * Fix and extend certificate handling and the commands `x509`, `verify` etc. 989 such as adding a trace facility for debugging certificate chain building. 990 991 *David von Oheimb* 992 993 * Various fixes and extensions to the CMP+CRMF implementation and the `cmp` app 994 in particular supporting requests for central key generation, generalized 995 polling, and various types of genm/genp exchanges defined in CMP Updates. 996 997 *David von Oheimb* 998 999 * Fixes and extensions to the HTTP client and to the HTTP server in `apps/` 1000 like correcting the TLS and proxy support and adding tracing for debugging. 1001 1002 *David von Oheimb* 1003 1004 * Extended the CMS API for handling `CMS_SignedData` and `CMS_EnvelopedData`. 1005 1006 *David von Oheimb* 1007 1008 * `CMS_add0_cert()` and `CMS_add1_cert()` no longer throw an error if 1009 a certificate to be added is already present. `CMS_sign_ex()` and 1010 `CMS_sign()` now ignore any duplicate certificates in their `certs` argument 1011 and no longer throw an error for them. 1012 1013 *David von Oheimb* 1014 1015 * Fixed and extended `util/check-format.pl` for checking adherence to the 1016 coding style <https://www.openssl.org/policies/technical/coding-style.html>. 1017 The checks are meanwhile more complete and yield fewer false positives. 1018 1019 *David von Oheimb* 1020 1021 * Added BIO_s_dgram_pair() and BIO_s_dgram_mem() that provide memory-based 1022 BIOs with datagram semantics and support for BIO_sendmmsg() and BIO_recvmmsg() 1023 calls. They can be used as the transport BIOs for QUIC. 1024 1025 *Hugo Landau, Matt Caswell and Tomáš Mráz* 1026 1027 * Add new BIO_sendmmsg() and BIO_recvmmsg() BIO methods which allow 1028 sending and receiving multiple messages in a single call. An implementation 1029 is provided for BIO_dgram. For further details, see BIO_sendmmsg(3). 1030 1031 *Hugo Landau* 1032 1033 * Support for loading root certificates from the Windows certificate store 1034 has been added. The support is in the form of a store which recognises the 1035 URI string of `org.openssl.winstore://`. This URI scheme currently takes no 1036 arguments. This store is built by default and can be disabled using the new 1037 compile-time option `no-winstore`. This store is not currently used by 1038 default and must be loaded explicitly using the above store URI. It is 1039 expected to be loaded by default in the future. 1040 1041 *Hugo Landau* 1042 1043 * Enable KTLS with the TLS 1.3 CCM mode ciphersuites. Note that some linux 1044 kernel versions that support KTLS have a known bug in CCM processing. That 1045 has been fixed in stable releases starting from 5.4.164, 5.10.84, 5.15.7, 1046 and all releases since 5.16. KTLS with CCM ciphersuites should be only used 1047 on these releases. 1048 1049 *Tianjia Zhang* 1050 1051 * Added `-ktls` option to `s_server` and `s_client` commands to enable the 1052 KTLS support. 1053 1054 *Tianjia Zhang* 1055 1056 * Zerocopy KTLS sendfile() support on Linux. 1057 1058 *Maxim Mikityanskiy* 1059 1060 * The OBJ_ calls are now thread safe using a global lock. 1061 1062 *Paul Dale* 1063 1064 * New parameter `-digest` for openssl cms command allowing signing 1065 pre-computed digests and new CMS API functions supporting that 1066 functionality. 1067 1068 *Viktor Söderqvist* 1069 1070 * OPENSSL_malloc() and other allocation functions now raise errors on 1071 allocation failures. The callers do not need to explicitly raise errors 1072 unless they want to for tracing purposes. 1073 1074 *David von Oheimb* 1075 1076 * Added and enabled by default implicit rejection in RSA PKCS#1 v1.5 1077 decryption as a protection against Bleichenbacher-like attacks. 1078 The RSA decryption API will now return a randomly generated deterministic 1079 message instead of an error in case it detects an error when checking 1080 padding during PKCS#1 v1.5 decryption. This is a general protection against 1081 issues like CVE-2020-25659 and CVE-2020-25657. This protection can be 1082 disabled by calling 1083 `EVP_PKEY_CTX_ctrl_str(ctx, "rsa_pkcs1_implicit_rejection". "0")` 1084 on the RSA decryption context. 1085 1086 *Hubert Kario* 1087 1088 * Added support for Brainpool curves in TLS-1.3. 1089 1090 *Bernd Edlinger and Matt Caswell* 1091 1092 * Added OpenBSD specific build targets. 1093 1094 *David Carlier* 1095 1096 * Support for Argon2d, Argon2i, Argon2id KDFs has been added along with 1097 a basic thread pool implementation for select platforms. 1098 1099 *Čestmír Kalina* 1100 1101OpenSSL 3.1 1102----------- 1103 1104### Changes between 3.1.3 and 3.1.4 [24 Oct 2023] 1105 1106 * Fix incorrect key and IV resizing issues when calling EVP_EncryptInit_ex2(), 1107 EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() with OSSL_PARAM parameters 1108 that alter the key or IV length ([CVE-2023-5363]). 1109 1110 *Paul Dale* 1111 1112### Changes between 3.1.2 and 3.1.3 [19 Sep 2023] 1113 1114 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows. 1115 1116 The POLY1305 MAC (message authentication code) implementation in OpenSSL 1117 does not save the contents of non-volatile XMM registers on Windows 64 1118 platform when calculating the MAC of data larger than 64 bytes. Before 1119 returning to the caller all the XMM registers are set to zero rather than 1120 restoring their previous content. The vulnerable code is used only on newer 1121 x86_64 processors supporting the AVX512-IFMA instructions. 1122 1123 The consequences of this kind of internal application state corruption can 1124 be various - from no consequences, if the calling application does not 1125 depend on the contents of non-volatile XMM registers at all, to the worst 1126 consequences, where the attacker could get complete control of the 1127 application process. However given the contents of the registers are just 1128 zeroized so the attacker cannot put arbitrary values inside, the most likely 1129 consequence, if any, would be an incorrect result of some application 1130 dependent calculations or a crash leading to a denial of service. 1131 1132 ([CVE-2023-4807]) 1133 1134 *Bernd Edlinger* 1135 1136### Changes between 3.1.1 and 3.1.2 [1 Aug 2023] 1137 1138 * Fix excessive time spent checking DH q parameter value. 1139 1140 The function DH_check() performs various checks on DH parameters. After 1141 fixing CVE-2023-3446 it was discovered that a large q parameter value can 1142 also trigger an overly long computation during some of these checks. 1143 A correct q value, if present, cannot be larger than the modulus p 1144 parameter, thus it is unnecessary to perform these checks if q is larger 1145 than p. 1146 1147 If DH_check() is called with such q parameter value, 1148 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 1149 intensive checks are skipped. 1150 1151 ([CVE-2023-3817]) 1152 1153 *Tomáš Mráz* 1154 1155 * Fix DH_check() excessive time with over sized modulus. 1156 1157 The function DH_check() performs various checks on DH parameters. One of 1158 those checks confirms that the modulus ("p" parameter) is not too large. 1159 Trying to use a very large modulus is slow and OpenSSL will not normally use 1160 a modulus which is over 10,000 bits in length. 1161 1162 However the DH_check() function checks numerous aspects of the key or 1163 parameters that have been supplied. Some of those checks use the supplied 1164 modulus value even if it has already been found to be too large. 1165 1166 A new limit has been added to DH_check of 32,768 bits. Supplying a 1167 key/parameters with a modulus over this size will simply cause DH_check() to 1168 fail. 1169 1170 ([CVE-2023-3446]) 1171 1172 *Matt Caswell* 1173 1174 * Do not ignore empty associated data entries with AES-SIV. 1175 1176 The AES-SIV algorithm allows for authentication of multiple associated 1177 data entries along with the encryption. To authenticate empty data the 1178 application has to call `EVP_EncryptUpdate()` (or `EVP_CipherUpdate()`) 1179 with NULL pointer as the output buffer and 0 as the input buffer length. 1180 The AES-SIV implementation in OpenSSL just returns success for such call 1181 instead of performing the associated data authentication operation. 1182 The empty data thus will not be authenticated. ([CVE-2023-2975]) 1183 1184 Thanks to Juerg Wullschleger (Google) for discovering the issue. 1185 1186 The fix changes the authentication tag value and the ciphertext for 1187 applications that use empty associated data entries with AES-SIV. 1188 To decrypt data encrypted with previous versions of OpenSSL the application 1189 has to skip calls to `EVP_DecryptUpdate()` for empty associated data 1190 entries. 1191 1192 *Tomáš Mráz* 1193 1194 * When building with the `enable-fips` option and using the resulting 1195 FIPS provider, TLS 1.2 will, by default, mandate the use of an extended 1196 master secret (FIPS 140-3 IG G.Q) and the Hash and HMAC DRBGs will 1197 not operate with truncated digests (FIPS 140-3 IG G.R). 1198 1199 *Paul Dale* 1200 1201### Changes between 3.1.0 and 3.1.1 [30 May 2023] 1202 1203 * Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 1204 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 1205 1206 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 1207 numeric text form. For gigantic sub-identifiers, this would take a very 1208 long time, the time complexity being O(n^2) where n is the size of that 1209 sub-identifier. ([CVE-2023-2650]) 1210 1211 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 1212 IDENTIFIER to canonical numeric text form if the size of that OBJECT 1213 IDENTIFIER is 586 bytes or less, and fail otherwise. 1214 1215 The basis for this restriction is [RFC 2578 (STD 58), section 3.5]. OBJECT 1216 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 1217 most 128 sub-identifiers, and that the maximum value that each sub- 1218 identifier may have is 2^32-1 (4294967295 decimal). 1219 1220 For each byte of every sub-identifier, only the 7 lower bits are part of 1221 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 1222 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 1223 bytes. 1224 1225 *Richard Levitte* 1226 1227 * Multiple algorithm implementation fixes for ARM BE platforms. 1228 1229 *Liu-ErMeng* 1230 1231 * Added a -pedantic option to fipsinstall that adjusts the various 1232 settings to ensure strict FIPS compliance rather than backwards 1233 compatibility. 1234 1235 *Paul Dale* 1236 1237 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms which 1238 happens if the buffer size is 4 mod 5 in 16 byte AES blocks. This can 1239 trigger a crash of an application using AES-XTS decryption if the memory 1240 just after the buffer being decrypted is not mapped. 1241 Thanks to Anton Romanov (Amazon) for discovering the issue. 1242 ([CVE-2023-1255]) 1243 1244 *Nevine Ebeid* 1245 1246 * Reworked the Fix for the Timing Oracle in RSA Decryption ([CVE-2022-4304]). 1247 The previous fix for this timing side channel turned out to cause 1248 a severe 2-3x performance regression in the typical use case 1249 compared to 3.0.7. The new fix uses existing constant time 1250 code paths, and restores the previous performance level while 1251 fully eliminating all existing timing side channels. 1252 The fix was developed by Bernd Edlinger with testing support 1253 by Hubert Kario. 1254 1255 *Bernd Edlinger* 1256 1257 * Add FIPS provider configuration option to disallow the use of 1258 truncated digests with Hash and HMAC DRBGs (q.v. FIPS 140-3 IG D.R.). 1259 The option '-no_drbg_truncated_digests' can optionally be 1260 supplied to 'openssl fipsinstall'. 1261 1262 *Paul Dale* 1263 1264 * Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 1265 that it does not enable policy checking. Thanks to David Benjamin for 1266 discovering this issue. 1267 ([CVE-2023-0466]) 1268 1269 *Tomáš Mráz* 1270 1271 * Fixed an issue where invalid certificate policies in leaf certificates are 1272 silently ignored by OpenSSL and other certificate policy checks are skipped 1273 for that certificate. A malicious CA could use this to deliberately assert 1274 invalid certificate policies in order to circumvent policy checking on the 1275 certificate altogether. 1276 ([CVE-2023-0465]) 1277 1278 *Matt Caswell* 1279 1280 * Limited the number of nodes created in a policy tree to mitigate 1281 against CVE-2023-0464. The default limit is set to 1000 nodes, which 1282 should be sufficient for most installations. If required, the limit 1283 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 1284 time define to a desired maximum number of nodes or zero to allow 1285 unlimited growth. 1286 ([CVE-2023-0464]) 1287 1288 *Paul Dale* 1289 1290### Changes between 3.0 and 3.1.0 [14 Mar 2023] 1291 1292 * Add FIPS provider configuration option to enforce the 1293 Extended Master Secret (EMS) check during the TLS1_PRF KDF. 1294 The option '-ems_check' can optionally be supplied to 1295 'openssl fipsinstall'. 1296 1297 *Shane Lontis* 1298 1299 * The FIPS provider includes a few non-approved algorithms for 1300 backward compatibility purposes and the "fips=yes" property query 1301 must be used for all algorithm fetches to ensure FIPS compliance. 1302 1303 The algorithms that are included but not approved are Triple DES ECB, 1304 Triple DES CBC and EdDSA. 1305 1306 *Paul Dale* 1307 1308 * Added support for KMAC in KBKDF. 1309 1310 *Shane Lontis* 1311 1312 * RNDR and RNDRRS support in provider functions to provide 1313 random number generation for Arm CPUs (aarch64). 1314 1315 *Orr Toledano* 1316 1317 * `s_client` and `s_server` commands now explicitly say when the TLS version 1318 does not include the renegotiation mechanism. This avoids confusion 1319 between that scenario versus when the TLS version includes secure 1320 renegotiation but the peer lacks support for it. 1321 1322 *Felipe Gasper* 1323 1324 * AES-GCM enabled with AVX512 vAES and vPCLMULQDQ. 1325 1326 *Tomasz Kantecki, Andrey Matyukov* 1327 1328 * The various OBJ_* functions have been made thread safe. 1329 1330 *Paul Dale* 1331 1332 * Parallel dual-prime 1536/2048-bit modular exponentiation for 1333 AVX512_IFMA capable processors. 1334 1335 *Sergey Kirillov, Andrey Matyukov (Intel Corp)* 1336 1337 * The functions `OPENSSL_LH_stats`, `OPENSSL_LH_node_stats`, 1338 `OPENSSL_LH_node_usage_stats`, `OPENSSL_LH_stats_bio`, 1339 `OPENSSL_LH_node_stats_bio` and `OPENSSL_LH_node_usage_stats_bio` are now 1340 marked deprecated from OpenSSL 3.1 onwards and can be disabled by defining 1341 `OPENSSL_NO_DEPRECATED_3_1`. 1342 1343 The macro `DEFINE_LHASH_OF` is now deprecated in favour of the macro 1344 `DEFINE_LHASH_OF_EX`, which omits the corresponding type-specific function 1345 definitions for these functions regardless of whether 1346 `OPENSSL_NO_DEPRECATED_3_1` is defined. 1347 1348 Users of `DEFINE_LHASH_OF` may start receiving deprecation warnings for these 1349 functions regardless of whether they are using them. It is recommended that 1350 users transition to the new macro, `DEFINE_LHASH_OF_EX`. 1351 1352 *Hugo Landau* 1353 1354 * When generating safe-prime DH parameters set the recommended private key 1355 length equivalent to minimum key lengths as in RFC 7919. 1356 1357 *Tomáš Mráz* 1358 1359 * Change the default salt length for PKCS#1 RSASSA-PSS signatures to the 1360 maximum size that is smaller or equal to the digest length to comply with 1361 FIPS 186-4 section 5. This is implemented by a new option 1362 `OSSL_PKEY_RSA_PSS_SALT_LEN_AUTO_DIGEST_MAX` ("auto-digestmax") for the 1363 `rsa_pss_saltlen` parameter, which is now the default. Signature 1364 verification is not affected by this change and continues to work as before. 1365 1366 *Clemens Lang* 1367 1368OpenSSL 3.0 1369----------- 1370 1371For OpenSSL 3.0 a [Migration guide][] has been added, so the CHANGES entries 1372listed here are only a brief description. 1373The migration guide contains more detailed information related to new features, 1374breaking changes, and mappings for the large list of deprecated functions. 1375 1376[Migration guide]: https://github.com/openssl/openssl/tree/master/doc/man7/migration_guide.pod 1377 1378### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 1379 1380 * Fixed NULL dereference during PKCS7 data verification. 1381 1382 A NULL pointer can be dereferenced when signatures are being 1383 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 1384 algorithm used for the signature is known to the OpenSSL library but 1385 the implementation of the hash algorithm is not available the digest 1386 initialization will fail. There is a missing check for the return 1387 value from the initialization function which later leads to invalid 1388 usage of the digest API most likely leading to a crash. 1389 ([CVE-2023-0401]) 1390 1391 PKCS7 data is processed by the SMIME library calls and also by the 1392 time stamp (TS) library calls. The TLS implementation in OpenSSL does 1393 not call these functions however third party applications would be 1394 affected if they call these functions to verify signatures on untrusted 1395 data. 1396 1397 *Tomáš Mráz* 1398 1399 * Fixed X.400 address type confusion in X.509 GeneralName. 1400 1401 There is a type confusion vulnerability relating to X.400 address processing 1402 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 1403 but the public structure definition for GENERAL_NAME incorrectly specified 1404 the type of the x400Address field as ASN1_TYPE. This field is subsequently 1405 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 1406 than an ASN1_STRING. 1407 1408 When CRL checking is enabled (i.e. the application sets the 1409 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 1410 pass arbitrary pointers to a memcmp call, enabling them to read memory 1411 contents or enact a denial of service. 1412 ([CVE-2023-0286]) 1413 1414 *Hugo Landau* 1415 1416 * Fixed NULL dereference validating DSA public key. 1417 1418 An invalid pointer dereference on read can be triggered when an 1419 application tries to check a malformed DSA public key by the 1420 EVP_PKEY_public_check() function. This will most likely lead 1421 to an application crash. This function can be called on public 1422 keys supplied from untrusted sources which could allow an attacker 1423 to cause a denial of service attack. 1424 1425 The TLS implementation in OpenSSL does not call this function 1426 but applications might call the function if there are additional 1427 security requirements imposed by standards such as FIPS 140-3. 1428 ([CVE-2023-0217]) 1429 1430 *Shane Lontis, Tomáš Mráz* 1431 1432 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 1433 1434 An invalid pointer dereference on read can be triggered when an 1435 application tries to load malformed PKCS7 data with the 1436 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 1437 1438 The result of the dereference is an application crash which could 1439 lead to a denial of service attack. The TLS implementation in OpenSSL 1440 does not call this function however third party applications might 1441 call these functions on untrusted data. 1442 ([CVE-2023-0216]) 1443 1444 *Tomáš Mráz* 1445 1446 * Fixed Use-after-free following BIO_new_NDEF. 1447 1448 The public API function BIO_new_NDEF is a helper function used for 1449 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 1450 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 1451 be called directly by end user applications. 1452 1453 The function receives a BIO from the caller, prepends a new BIO_f_asn1 1454 filter BIO onto the front of it to form a BIO chain, and then returns 1455 the new head of the BIO chain to the caller. Under certain conditions, 1456 for example if a CMS recipient public key is invalid, the new filter BIO 1457 is freed and the function returns a NULL result indicating a failure. 1458 However, in this case, the BIO chain is not properly cleaned up and the 1459 BIO passed by the caller still retains internal pointers to the previously 1460 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 1461 then a use-after-free will occur. This will most likely result in a crash. 1462 ([CVE-2023-0215]) 1463 1464 *Viktor Dukhovni, Matt Caswell* 1465 1466 * Fixed Double free after calling PEM_read_bio_ex. 1467 1468 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 1469 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 1470 data. If the function succeeds then the "name_out", "header" and "data" 1471 arguments are populated with pointers to buffers containing the relevant 1472 decoded data. The caller is responsible for freeing those buffers. It is 1473 possible to construct a PEM file that results in 0 bytes of payload data. 1474 In this case PEM_read_bio_ex() will return a failure code but will populate 1475 the header argument with a pointer to a buffer that has already been freed. 1476 If the caller also frees this buffer then a double free will occur. This 1477 will most likely lead to a crash. 1478 1479 The functions PEM_read_bio() and PEM_read() are simple wrappers around 1480 PEM_read_bio_ex() and therefore these functions are also directly affected. 1481 1482 These functions are also called indirectly by a number of other OpenSSL 1483 functions including PEM_X509_INFO_read_bio_ex() and 1484 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 1485 internal uses of these functions are not vulnerable because the caller does 1486 not free the header argument if PEM_read_bio_ex() returns a failure code. 1487 ([CVE-2022-4450]) 1488 1489 *Kurt Roeckx, Matt Caswell* 1490 1491 * Fixed Timing Oracle in RSA Decryption. 1492 1493 A timing based side channel exists in the OpenSSL RSA Decryption 1494 implementation which could be sufficient to recover a plaintext across 1495 a network in a Bleichenbacher style attack. To achieve a successful 1496 decryption an attacker would have to be able to send a very large number 1497 of trial messages for decryption. The vulnerability affects all RSA padding 1498 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 1499 ([CVE-2022-4304]) 1500 1501 *Dmitry Belyavsky, Hubert Kario* 1502 1503 * Fixed X.509 Name Constraints Read Buffer Overflow. 1504 1505 A read buffer overrun can be triggered in X.509 certificate verification, 1506 specifically in name constraint checking. The read buffer overrun might 1507 result in a crash which could lead to a denial of service attack. 1508 In a TLS client, this can be triggered by connecting to a malicious 1509 server. In a TLS server, this can be triggered if the server requests 1510 client authentication and a malicious client connects. 1511 ([CVE-2022-4203]) 1512 1513 *Viktor Dukhovni* 1514 1515 * Fixed X.509 Policy Constraints Double Locking security issue. 1516 1517 If an X.509 certificate contains a malformed policy constraint and 1518 policy processing is enabled, then a write lock will be taken twice 1519 recursively. On some operating systems (most widely: Windows) this 1520 results in a denial of service when the affected process hangs. Policy 1521 processing being enabled on a publicly facing server is not considered 1522 to be a common setup. 1523 ([CVE-2022-3996]) 1524 1525 *Paul Dale* 1526 1527 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 1528 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 1529 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 1530 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 1531 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 1532 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 1533 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 1534 for legacy EC and SM2 keys is also changed similarly to honor the 1535 equivalent conversion format flag as specified in the underlying 1536 `EC_KEY` object being exported to a provider, when this function is 1537 called through `EVP_PKEY_export()`. 1538 1539 *Nicola Tuveri* 1540 1541### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 1542 1543 * Fixed two buffer overflows in punycode decoding functions. 1544 1545 A buffer overrun can be triggered in X.509 certificate verification, 1546 specifically in name constraint checking. Note that this occurs after 1547 certificate chain signature verification and requires either a CA to 1548 have signed the malicious certificate or for the application to continue 1549 certificate verification despite failure to construct a path to a trusted 1550 issuer. 1551 1552 In a TLS client, this can be triggered by connecting to a malicious 1553 server. In a TLS server, this can be triggered if the server requests 1554 client authentication and a malicious client connects. 1555 1556 An attacker can craft a malicious email address to overflow 1557 an arbitrary number of bytes containing the `.` character (decimal 46) 1558 on the stack. This buffer overflow could result in a crash (causing a 1559 denial of service). 1560 ([CVE-2022-3786]) 1561 1562 An attacker can craft a malicious email address to overflow four 1563 attacker-controlled bytes on the stack. This buffer overflow could 1564 result in a crash (causing a denial of service) or potentially remote code 1565 execution depending on stack layout for any given platform/compiler. 1566 ([CVE-2022-3602]) 1567 1568 *Paul Dale* 1569 1570 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 1571 parameters in OpenSSL code. 1572 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 1573 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 1574 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 1575 Using these invalid names may cause algorithms to use slower methods 1576 that ignore the CRT parameters. 1577 1578 *Shane Lontis* 1579 1580 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 1581 operations. 1582 1583 *Tomáš Mráz* 1584 1585 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 1586 data to be signed before signing the certificate. 1587 1588 *Gibeom Gwon* 1589 1590 * Added RIPEMD160 to the default provider. 1591 1592 *Paul Dale* 1593 1594 * Ensured that the key share group sent or accepted for the key exchange 1595 is allowed for the protocol version. 1596 1597 *Matt Caswell* 1598 1599### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 1600 1601 * OpenSSL supports creating a custom cipher via the legacy 1602 EVP_CIPHER_meth_new() function and associated function calls. This function 1603 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 1604 to use the new provider mechanism in order to implement custom ciphers. 1605 1606 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 1607 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 1608 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 1609 and decryption initialisation functions). Instead of using the custom cipher 1610 directly it incorrectly tries to fetch an equivalent cipher from the 1611 available providers. An equivalent cipher is found based on the NID passed to 1612 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 1613 given cipher. However it is possible for an application to incorrectly pass 1614 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 1615 is used in this way the OpenSSL encryption/decryption initialisation function 1616 will match the NULL cipher as being equivalent and will fetch this from the 1617 available providers. This will succeed if the default provider has been 1618 loaded (or if a third party provider has been loaded that offers this 1619 cipher). Using the NULL cipher means that the plaintext is emitted as the 1620 ciphertext. 1621 1622 Applications are only affected by this issue if they call 1623 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 1624 encryption/decryption initialisation function. Applications that only use 1625 SSL/TLS are not impacted by this issue. 1626 ([CVE-2022-3358]) 1627 1628 *Matt Caswell* 1629 1630 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 1631 on MacOS 10.11 1632 1633 *Richard Levitte* 1634 1635 * Fixed the linux-mips64 Configure target which was missing the 1636 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 1637 platform. 1638 1639 *Adam Joseph* 1640 1641 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 1642 ticket 1643 1644 *Matt Caswell* 1645 1646 * Correctly handle a retransmitted ClientHello in DTLS 1647 1648 *Matt Caswell* 1649 1650 * Fixed detection of ktls support in cross-compile environment on Linux 1651 1652 *Tomas Mraz* 1653 1654 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 1655 against 3.0.x 1656 1657 *Paul Dale* 1658 1659 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 1660 report correct results in some cases 1661 1662 *Matt Caswell* 1663 1664 * Fix UWP builds by defining VirtualLock 1665 1666 *Charles Milette* 1667 1668 * For known safe primes use the minimum key length according to RFC 7919. 1669 Longer private key sizes unnecessarily raise the cycles needed to compute the 1670 shared secret without any increase of the real security. This fixes a 1671 regression from 1.1.1 where these shorter keys were generated for the known 1672 safe primes. 1673 1674 *Tomas Mraz* 1675 1676 * Added the loongarch64 target 1677 1678 *Shi Pujin* 1679 1680 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 1681 only passed to the FIPS provider and not to the default or legacy provider. 1682 1683 *Juergen Christ* 1684 1685 * Fixed reported performance degradation on aarch64. Restored the 1686 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 1687 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 1688 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 1689 The new algorithm is still used for 32 bit targets. 1690 1691 *Bernd Edlinger* 1692 1693 * Added a missing header for memcmp that caused compilation failure on some 1694 platforms 1695 1696 *Gregor Jasny* 1697 1698### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 1699 1700 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 1701 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 1702 This issue makes the RSA implementation with 2048 bit private keys 1703 incorrect on such machines and memory corruption will happen during 1704 the computation. As a consequence of the memory corruption an attacker 1705 may be able to trigger a remote code execution on the machine performing 1706 the computation. 1707 1708 SSL/TLS servers or other servers using 2048 bit RSA private keys running 1709 on machines supporting AVX512IFMA instructions of the X86_64 architecture 1710 are affected by this issue. 1711 ([CVE-2022-2274]) 1712 1713 *Xi Ruoyao* 1714 1715 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 1716 implementation would not encrypt the entirety of the data under some 1717 circumstances. This could reveal sixteen bytes of data that was 1718 preexisting in the memory that wasn't written. In the special case of 1719 "in place" encryption, sixteen bytes of the plaintext would be revealed. 1720 1721 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 1722 they are both unaffected. 1723 ([CVE-2022-2097]) 1724 1725 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 1726 1727### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 1728 1729 * In addition to the c_rehash shell command injection identified in 1730 CVE-2022-1292, further bugs where the c_rehash script does not 1731 properly sanitise shell metacharacters to prevent command injection have been 1732 fixed. 1733 1734 When the CVE-2022-1292 was fixed it was not discovered that there 1735 are other places in the script where the file names of certificates 1736 being hashed were possibly passed to a command executed through the shell. 1737 1738 This script is distributed by some operating systems in a manner where 1739 it is automatically executed. On such operating systems, an attacker 1740 could execute arbitrary commands with the privileges of the script. 1741 1742 Use of the c_rehash script is considered obsolete and should be replaced 1743 by the OpenSSL rehash command line tool. 1744 (CVE-2022-2068) 1745 1746 *Daniel Fiala, Tomáš Mráz* 1747 1748 * Case insensitive string comparison no longer uses locales. It has instead 1749 been directly implemented. 1750 1751 *Paul Dale* 1752 1753### Changes between 3.0.2 and 3.0.3 [3 May 2022] 1754 1755 * Case insensitive string comparison is reimplemented via new locale-agnostic 1756 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 1757 comparison. The previous implementation had problems when the Turkish locale 1758 was used. 1759 1760 *Dmitry Belyavskiy* 1761 1762 * Fixed a bug in the c_rehash script which was not properly sanitising shell 1763 metacharacters to prevent command injection. This script is distributed by 1764 some operating systems in a manner where it is automatically executed. On 1765 such operating systems, an attacker could execute arbitrary commands with the 1766 privileges of the script. 1767 1768 Use of the c_rehash script is considered obsolete and should be replaced 1769 by the OpenSSL rehash command line tool. 1770 (CVE-2022-1292) 1771 1772 *Tomáš Mráz* 1773 1774 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 1775 certificate on an OCSP response. The bug caused the function in the case 1776 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 1777 response (meaning a successful verification) even in the case where the 1778 response signing certificate fails to verify. 1779 1780 It is anticipated that most users of `OCSP_basic_verify` will not use the 1781 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 1782 a negative value (indicating a fatal error) in the case of a certificate 1783 verification failure. The normal expected return value in this case would be 1784 0. 1785 1786 This issue also impacts the command line OpenSSL "ocsp" application. When 1787 verifying an ocsp response with the "-no_cert_checks" option the command line 1788 application will report that the verification is successful even though it 1789 has in fact failed. In this case the incorrect successful response will also 1790 be accompanied by error messages showing the failure and contradicting the 1791 apparently successful result. 1792 ([CVE-2022-1343]) 1793 1794 *Matt Caswell* 1795 1796 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 1797 AAD data as the MAC key. This made the MAC key trivially predictable. 1798 1799 An attacker could exploit this issue by performing a man-in-the-middle attack 1800 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 1801 that the modified data would still pass the MAC integrity check. 1802 1803 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 1804 endpoint will always be rejected by the recipient and the connection will 1805 fail at that point. Many application protocols require data to be sent from 1806 the client to the server first. Therefore, in such a case, only an OpenSSL 1807 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 1808 1809 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 1810 sent in both directions. In this case both clients and servers could be 1811 affected, regardless of the application protocol. 1812 1813 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 1814 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 1815 the handshake when using this ciphersuite. 1816 1817 The confidentiality of data is not impacted by this issue, i.e. an attacker 1818 cannot decrypt data that has been encrypted using this ciphersuite - they can 1819 only modify it. 1820 1821 In order for this attack to work both endpoints must legitimately negotiate 1822 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 1823 OpenSSL 3.0, and is not available within the default provider or the default 1824 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 1825 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 1826 following must have occurred: 1827 1828 1) OpenSSL must have been compiled with the (non-default) compile time option 1829 enable-weak-ssl-ciphers 1830 1831 2) OpenSSL must have had the legacy provider explicitly loaded (either 1832 through application code or via configuration) 1833 1834 3) The ciphersuite must have been explicitly added to the ciphersuite list 1835 1836 4) The libssl security level must have been set to 0 (default is 1) 1837 1838 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 1839 1840 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 1841 others that both endpoints have in common 1842 (CVE-2022-1434) 1843 1844 *Matt Caswell* 1845 1846 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 1847 occupied by the removed hash table entries. 1848 1849 This function is used when decoding certificates or keys. If a long lived 1850 process periodically decodes certificates or keys its memory usage will 1851 expand without bounds and the process might be terminated by the operating 1852 system causing a denial of service. Also traversing the empty hash table 1853 entries will take increasingly more time. 1854 1855 Typically such long lived processes might be TLS clients or TLS servers 1856 configured to accept client certificate authentication. 1857 (CVE-2022-1473) 1858 1859 *Hugo Landau, Aliaksei Levin* 1860 1861 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 1862 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 1863 statistics are no longer supported. For compatibility, these statistics are 1864 still listed in the output but are now always reported as zero. 1865 1866 *Hugo Landau* 1867 1868### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 1869 1870 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 1871 for non-prime moduli. 1872 1873 Internally this function is used when parsing certificates that contain 1874 elliptic curve public keys in compressed form or explicit elliptic curve 1875 parameters with a base point encoded in compressed form. 1876 1877 It is possible to trigger the infinite loop by crafting a certificate that 1878 has invalid explicit curve parameters. 1879 1880 Since certificate parsing happens prior to verification of the certificate 1881 signature, any process that parses an externally supplied certificate may thus 1882 be subject to a denial of service attack. The infinite loop can also be 1883 reached when parsing crafted private keys as they can contain explicit 1884 elliptic curve parameters. 1885 1886 Thus vulnerable situations include: 1887 1888 - TLS clients consuming server certificates 1889 - TLS servers consuming client certificates 1890 - Hosting providers taking certificates or private keys from customers 1891 - Certificate authorities parsing certification requests from subscribers 1892 - Anything else which parses ASN.1 elliptic curve parameters 1893 1894 Also any other applications that use the BN_mod_sqrt() where the attacker 1895 can control the parameter values are vulnerable to this DoS issue. 1896 ([CVE-2022-0778]) 1897 1898 *Tomáš Mráz* 1899 1900 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 1901 to the list of ciphersuites providing Perfect Forward Secrecy as 1902 required by SECLEVEL >= 3. 1903 1904 *Dmitry Belyavskiy, Nicola Tuveri* 1905 1906 * Made the AES constant time code for no-asm configurations 1907 optional due to the resulting 95% performance degradation. 1908 The AES constant time code can be enabled, for no assembly 1909 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 1910 1911 *Paul Dale* 1912 1913 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 1914 passphrase strings. 1915 1916 *Darshan Sen* 1917 1918 * The negative return value handling of the certificate verification callback 1919 was reverted. The replacement is to set the verification retry state with 1920 the SSL_set_retry_verify() function. 1921 1922 *Tomáš Mráz* 1923 1924### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 1925 1926 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 1927 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 1928 verify a certificate supplied by a server. That function may return a 1929 negative return value to indicate an internal error (for example out of 1930 memory). Such a negative return value is mishandled by OpenSSL and will cause 1931 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 1932 success and a subsequent call to SSL_get_error() to return the value 1933 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 1934 returned by OpenSSL if the application has previously called 1935 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 1936 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 1937 totally unexpected and applications may not behave correctly as a result. The 1938 exact behaviour will depend on the application but it could result in 1939 crashes, infinite loops or other similar incorrect responses. 1940 1941 This issue is made more serious in combination with a separate bug in OpenSSL 1942 3.0 that will cause X509_verify_cert() to indicate an internal error when 1943 processing a certificate chain. This will occur where a certificate does not 1944 include the Subject Alternative Name extension but where a Certificate 1945 Authority has enforced name constraints. This issue can occur even with valid 1946 chains. 1947 ([CVE-2021-4044]) 1948 1949 *Matt Caswell* 1950 1951 * Corrected a few file name and file reference bugs in the build, 1952 installation and setup scripts, which lead to installation verification 1953 failures. Slightly enhanced the installation verification script. 1954 1955 *Richard Levitte* 1956 1957 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 1958 keys. 1959 1960 *Richard Levitte* 1961 1962 * Fixed PVK encoder to properly query for the passphrase. 1963 1964 *Tomáš Mráz* 1965 1966 * Multiple fixes in the OSSL_HTTP API functions. 1967 1968 *David von Oheimb* 1969 1970 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 1971 OSSL_PARAM_INTEGER data type and return error on negative numbers 1972 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 1973 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 1974 1975 *Richard Levitte* 1976 1977 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 1978 1979 *Tomáš Mráz* 1980 1981 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 1982 1983 *Allan Jude* 1984 1985 * Multiple threading fixes. 1986 1987 *Matt Caswell* 1988 1989 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 1990 1991 *Tomáš Mráz* 1992 1993 * Allow fetching an operation from the provider that owns an unexportable key 1994 as a fallback if that is still allowed by the property query. 1995 1996 *Richard Levitte* 1997 1998### Changes between 1.1.1 and 3.0.0 [7 Sep 2021] 1999 2000 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 2001 deprecated. 2002 2003 *Matt Caswell* 2004 2005 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 2006 S390X capability vector to zero. This simplifies testing of different code 2007 paths on S390X architecture. 2008 2009 *Patrick Steuer* 2010 2011 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 2012 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 2013 SP 800-38D". The communication will fail at this point. 2014 2015 *Paul Dale* 2016 2017 * The EC_GROUP_clear_free() function is deprecated as there is nothing 2018 confidential in EC_GROUP data. 2019 2020 *Nicola Tuveri* 2021 2022 * The byte order mark (BOM) character is ignored if encountered at the 2023 beginning of a PEM-formatted file. 2024 2025 *Dmitry Belyavskiy* 2026 2027 * Added CMS support for the Russian GOST algorithms. 2028 2029 *Dmitry Belyavskiy* 2030 2031 * Due to move of the implementation of cryptographic operations 2032 to the providers, validation of various operation parameters can 2033 be postponed until the actual operation is executed where previously 2034 it happened immediately when an operation parameter was set. 2035 2036 For example when setting an unsupported curve with 2037 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 2038 fail but later keygen operations with the EVP_PKEY_CTX will fail. 2039 2040 *OpenSSL team members and many third party contributors* 2041 2042 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 2043 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 2044 previously only accessible via low-level interfaces. Use EVP_CIPHER_fetch() 2045 instead to retrieve these algorithms from a provider. 2046 2047 *Shane Lontis* 2048 2049 * On build targets where the multilib postfix is set in the build 2050 configuration the libdir directory was changing based on whether 2051 the lib directory with the multilib postfix exists on the system 2052 or not. This unpredictable behavior was removed and eventual 2053 multilib postfix is now always added to the default libdir. Use 2054 `--libdir=lib` to override the libdir if adding the postfix is 2055 undesirable. 2056 2057 *Jan Lána* 2058 2059 * The triple DES key wrap functionality now conforms to RFC 3217 but is 2060 no longer interoperable with OpenSSL 1.1.1. 2061 2062 *Paul Dale* 2063 2064 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 2065 function codes, this function can only cause problems for calling 2066 applications. 2067 2068 *Paul Dale* 2069 2070 * Add a configurable flag to output date formats as ISO 8601. Does not 2071 change the default date format. 2072 2073 *William Edmisten* 2074 2075 * Version of MSVC earlier than 1300 could get link warnings, which could 2076 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 2077 Support for this flag has been removed. 2078 2079 *Rich Salz* 2080 2081 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 2082 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 2083 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 2084 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 2085 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 2086 2087 *Rich Salz* 2088 2089 * The signatures of the functions to get and set options on SSL and 2090 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 2091 Some source code changes may be required. 2092 2093 *Rich Salz* 2094 2095 * The public definitions of conf_method_st and conf_st have been 2096 deprecated. They will be made opaque in a future release. 2097 2098 *Rich Salz and Tomáš Mráz* 2099 2100 * Client-initiated renegotiation is disabled by default. To allow it, use 2101 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 2102 flag, or the "ClientRenegotiation" config parameter as appropriate. 2103 2104 *Rich Salz* 2105 2106 * Add "abspath" and "includedir" pragma's to config files, to prevent, 2107 or modify relative pathname inclusion. 2108 2109 *Rich Salz* 2110 2111 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 2112 validated. Please consult the README-FIPS and 2113 README-PROVIDERS files, as well as the migration guide. 2114 2115 *OpenSSL team members and many third party contributors* 2116 2117 * For the key types DH and DHX the allowed settable parameters are now different. 2118 2119 *Shane Lontis* 2120 2121 * The openssl commands that read keys, certificates, and CRLs now 2122 automatically detect the PEM or DER format of the input files. 2123 2124 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 2125 2126 * Added enhanced PKCS#12 APIs which accept a library context. 2127 2128 *Jon Spillett* 2129 2130 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 2131 2132 *Matt Caswell* 2133 2134 * Added support for Kernel TLS (KTLS). 2135 2136 *Boris Pismenny, John Baldwin and Andrew Gallatin* 2137 2138 * Support for RFC 5746 secure renegotiation is now required by default for 2139 SSL or TLS connections to succeed. 2140 2141 *Benjamin Kaduk* 2142 2143 * The signature of the `copy` functional parameter of the 2144 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 2145 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 2146 the signature of the `pub_decode` functional parameter of the 2147 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 2148 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 2149 2150 *David von Oheimb* 2151 2152 * The error return values from some control calls (ctrl) have changed. 2153 2154 *Paul Dale* 2155 2156 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 2157 2158 *Shane Lontis* 2159 2160 * Many functions in the EVP_ namespace that are getters of values from 2161 implementations or contexts were renamed to include get or get0 in their 2162 names. Old names are provided as macro aliases for compatibility and 2163 are not deprecated. 2164 2165 *Tomáš Mráz* 2166 2167 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 2168 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 2169 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 2170 are deprecated. 2171 2172 *Tomáš Mráz* 2173 2174 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 2175 more key types. 2176 2177 * The output from the command line applications may have minor 2178 changes. 2179 2180 *Paul Dale* 2181 2182 * The output from numerous "printing" may have minor changes. 2183 2184 *David von Oheimb* 2185 2186 * Windows thread synchronization uses read/write primitives (SRWLock) when 2187 supported by the OS, otherwise CriticalSection continues to be used. 2188 2189 *Vincent Drake* 2190 2191 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 2192 work on read only BIO source/sinks that do not support these functions. 2193 This allows piping or redirection of a file BIO using stdin to be buffered 2194 into memory. This is used internally in OSSL_DECODER_from_bio(). 2195 2196 *Shane Lontis* 2197 2198 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 2199 this function would return one of the values OSSL_STORE_INFO_NAME, 2200 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 2201 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 2202 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 2203 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 2204 using this function should be amended to handle the changed return value. 2205 2206 *Richard Levitte* 2207 2208 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 2209 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 2210 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 2211 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 2212 contains more than one certificate identifier: This means that all 2213 certificates referenced there MUST be part of the validation chain. 2214 2215 *David von Oheimb* 2216 2217 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 2218 RC5, DESX and DES have been moved to the legacy provider. 2219 2220 *Matt Caswell* 2221 2222 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 2223 RIPEMD-160 have been moved to the legacy provider. 2224 2225 *Matt Caswell* 2226 2227 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 2228 provided key. 2229 2230 *Dmitry Belyavskiy* 2231 2232 * The deprecated functions EVP_PKEY_get0_RSA(), 2233 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 2234 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 2235 well as the similarly named "get1" functions behave differently in 2236 OpenSSL 3.0. 2237 2238 *Matt Caswell* 2239 2240 * A number of functions handling low-level keys or engines were deprecated 2241 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 2242 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 2243 EVP_PKEY_get0_siphash(). 2244 2245 *Matt Caswell* 2246 2247 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 2248 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 2249 will need to load the legacy crypto provider. This includes these PBE 2250 algorithms which use this KDF: 2251 - NID_pbeWithMD2AndDES_CBC 2252 - NID_pbeWithMD5AndDES_CBC 2253 - NID_pbeWithSHA1AndRC2_CBC 2254 - NID_pbeWithMD2AndRC2_CBC 2255 - NID_pbeWithMD5AndRC2_CBC 2256 - NID_pbeWithSHA1AndDES_CBC 2257 2258 *Jon Spillett* 2259 2260 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 2261 BIO_debug_callback() functions. 2262 2263 *Tomáš Mráz* 2264 2265 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 2266 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 2267 2268 *Tomáš Mráz* 2269 2270 * The RAND_METHOD APIs have been deprecated. 2271 2272 *Paul Dale* 2273 2274 * The SRP APIs have been deprecated. 2275 2276 *Matt Caswell* 2277 2278 * Add a compile time option to prevent the caching of provider fetched 2279 algorithms. This is enabled by including the no-cached-fetch option 2280 at configuration time. 2281 2282 *Paul Dale* 2283 2284 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 2285 count of PKCS12_DEFAULT_ITER. 2286 2287 *Tomáš Mráz and Sahana Prasad* 2288 2289 * The openssl speed command does not use low-level API calls anymore. 2290 2291 *Tomáš Mráz* 2292 2293 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 2294 capable processors. 2295 2296 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 2297 2298 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 2299 2300 *Matt Caswell* 2301 2302 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 2303 providers may supply their own group implementations (using either the "key 2304 exchange" or the "key encapsulation" methods) which will automatically be 2305 detected and used by libssl. 2306 2307 *Matt Caswell, Nicola Tuveri* 2308 2309 * The undocumented function X509_certificate_type() has been deprecated; 2310 2311 *Rich Salz* 2312 2313 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 2314 2315 *Tomáš Mráz* 2316 2317 * Removed RSA padding mode for SSLv23 (which was only used for 2318 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 2319 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 2320 `rsautl` command. 2321 2322 *Rich Salz* 2323 2324 * Deprecated the obsolete X9.31 RSA key generation related functions. 2325 2326 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 2327 is not allowed to return a value > 1, this is no more taken as failure. 2328 2329 *Viktor Dukhovni and David von Oheimb* 2330 2331 * Deprecated the obsolete X9.31 RSA key generation related functions 2332 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 2333 BN_X931_generate_prime_ex(). 2334 2335 *Tomáš Mráz* 2336 2337 * The default key generation method for the regular 2-prime RSA keys was 2338 changed to the FIPS 186-4 B.3.6 method. 2339 2340 *Shane Lontis* 2341 2342 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 2343 2344 *Kurt Roeckx* 2345 2346 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 2347 2348 *Rich Salz* 2349 2350 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 2351 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 2352 2353 *Rich Salz, Richard Levitte, and David von Oheimb* 2354 2355 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 2356 2357 *David von Oheimb* 2358 2359 * Deprecated `OCSP_parse_url()`. 2360 2361 *David von Oheimb* 2362 2363 * Validation of SM2 keys has been separated from the validation of regular EC 2364 keys. 2365 2366 *Nicola Tuveri* 2367 2368 * Behavior of the `pkey` command is changed, 2369 when using the `-check` or `-pubcheck` 2370 switches: a validation failure triggers an early exit, returning a failure 2371 exit status to the parent process. 2372 2373 *Nicola Tuveri* 2374 2375 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 2376 to ignore unknown ciphers. 2377 2378 *Otto Hollmann* 2379 2380 * The `-cipher-commands` and `-digest-commands` options 2381 of the command line utility `list` have been deprecated. 2382 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 2383 2384 *Dmitry Belyavskiy* 2385 2386 * Added convenience functions for generating asymmetric key pairs: 2387 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 2388 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 2389 2390 *David von Oheimb* 2391 2392 * All of the low-level EC_KEY functions have been deprecated. 2393 2394 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 2395 2396 * Deprecated all the libcrypto and libssl error string loading 2397 functions. 2398 2399 *Richard Levitte* 2400 2401 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 2402 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 2403 deprecated. 2404 2405 *Matt Caswell* 2406 2407 * The `-crypt` option to the `passwd` command line tool has been removed. 2408 2409 *Paul Dale* 2410 2411 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 2412 were removed. 2413 2414 *Rich Salz* 2415 2416 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 2417 2418 *Shane Lontis* 2419 2420 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 2421 EVP_PKEY_get1_tls_encodedpoint(). 2422 2423 *Matt Caswell* 2424 2425 * The security callback, which can be customised by application code, supports 2426 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 2427 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 2428 2429 *Matt Caswell* 2430 2431 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 2432 interface. Their functionality remains unchanged. 2433 2434 *Jordan Montgomery* 2435 2436 * Added new option for 'openssl list', '-providers', which will display the 2437 list of loaded providers, their names, version and status. It optionally 2438 displays their gettable parameters. 2439 2440 *Paul Dale* 2441 2442 * Removed EVP_PKEY_set_alias_type(). 2443 2444 *Richard Levitte* 2445 2446 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 2447 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 2448 2449 *Jeremy Walch* 2450 2451 * Changed all "STACK" functions to be macros instead of inline functions. Macro 2452 parameters are still checked for type safety at compile time via helper 2453 inline functions. 2454 2455 *Matt Caswell* 2456 2457 * Remove the RAND_DRBG API 2458 2459 *Paul Dale and Matthias St. Pierre* 2460 2461 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 2462 as well as actual hostnames. 2463 2464 *David Woodhouse* 2465 2466 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2467 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2468 conversely, silently ignore DTLS protocol version bounds when configuring 2469 TLS-based contexts. The commands can be repeated to set bounds of both 2470 types. The same applies with the corresponding "min_protocol" and 2471 "max_protocol" command-line switches, in case some application uses both TLS 2472 and DTLS. 2473 2474 SSL_CTX instances that are created for a fixed protocol version (e.g. 2475 `TLSv1_server_method()`) also silently ignore version bounds. Previously 2476 attempts to apply bounds to these protocol versions would result in an 2477 error. Now only the "version-flexible" SSL_CTX instances are subject to 2478 limits in configuration files in command-line options. 2479 2480 *Viktor Dukhovni* 2481 2482 * Deprecated the `ENGINE` API. Engines should be replaced with providers 2483 going forward. 2484 2485 *Paul Dale* 2486 2487 * Reworked the recorded ERR codes to make better space for system errors. 2488 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 2489 given code is a system error (true) or an OpenSSL error (false). 2490 2491 *Richard Levitte* 2492 2493 * Reworked the test perl framework to better allow parallel testing. 2494 2495 *Nicola Tuveri and David von Oheimb* 2496 2497 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 2498 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 2499 2500 *Shane Lontis* 2501 2502 * 'Configure' has been changed to figure out the configuration target if 2503 none is given on the command line. Consequently, the 'config' script is 2504 now only a mere wrapper. All documentation is changed to only mention 2505 'Configure'. 2506 2507 *Rich Salz and Richard Levitte* 2508 2509 * Added a library context `OSSL_LIB_CTX` that applications as well as 2510 other libraries can use to form a separate context within which 2511 libcrypto operations are performed. 2512 2513 *Richard Levitte* 2514 2515 * Added various `_ex` functions to the OpenSSL API that support using 2516 a non-default `OSSL_LIB_CTX`. 2517 2518 *OpenSSL team* 2519 2520 * Handshake now fails if Extended Master Secret extension is dropped 2521 on renegotiation. 2522 2523 *Tomáš Mráz* 2524 2525 * Dropped interactive mode from the `openssl` program. 2526 2527 *Richard Levitte* 2528 2529 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 2530 2531 *David von Oheimb and Shane Lontis* 2532 2533 * Deprecated `EC_METHOD_get_field_type()`. 2534 2535 *Billy Bob Brumley* 2536 2537 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 2538 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 2539 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 2540 2541 *Billy Bob Brumley* 2542 2543 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 2544 2545 *Billy Bob Brumley* 2546 2547 * Add CAdES-BES signature verification support, mostly derived 2548 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 2549 2550 *Filipe Raimundo da Silva* 2551 2552 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 2553 2554 *Antonio Iacono* 2555 2556 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 2557 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 2558 2559 *Jakub Zelenka* 2560 2561 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 2562 2563 *Billy Bob Brumley* 2564 2565 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 2566 EC_KEY_precompute_mult(). 2567 2568 *Billy Bob Brumley* 2569 2570 * Deprecated EC_POINTs_mul(). 2571 2572 *Billy Bob Brumley* 2573 2574 * Removed FIPS_mode() and FIPS_mode_set(). 2575 2576 *Shane Lontis* 2577 2578 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 2579 2580 *Dmitry Belyavskiy* 2581 2582 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 2583 EC_POINT_get_Jprojective_coordinates_GFp(). 2584 2585 *Billy Bob Brumley* 2586 2587 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 2588 arrays to be more easily constructed via a series of utility functions. 2589 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 2590 the various push functions and finally convert to a passable OSSL_PARAM 2591 array using OSSL_PARAM_BLD_to_param(). 2592 2593 *Paul Dale* 2594 2595 * The security strength of SHA1 and MD5 based signatures in TLS has been 2596 reduced. 2597 2598 *Kurt Roeckx* 2599 2600 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 2601 contain a provider side internal key. 2602 2603 *Richard Levitte* 2604 2605 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 2606 2607 *Richard Levitte* 2608 2609 * Project text documents not yet having a proper file name extension 2610 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 2611 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 2612 2613 *David von Oheimb* 2614 2615 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 2616 have been converted to Markdown with the goal to produce documents 2617 which not only look pretty when viewed online in the browser, but 2618 remain well readable inside a plain text editor. 2619 2620 To achieve this goal, a 'minimalistic' Markdown style has been applied 2621 which avoids formatting elements that interfere too much with the 2622 reading flow in the text file. For example, it 2623 2624 * avoids [ATX headings][] and uses [setext headings][] instead 2625 (which works for `<h1>` and `<h2>` headings only). 2626 * avoids [inline links][] and uses [reference links][] instead. 2627 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 2628 2629 [ATX headings]: https://github.github.com/gfm/#atx-headings 2630 [setext headings]: https://github.github.com/gfm/#setext-headings 2631 [inline links]: https://github.github.com/gfm/#inline-link 2632 [reference links]: https://github.github.com/gfm/#reference-link 2633 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 2634 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 2635 2636 *Matthias St. Pierre* 2637 2638 * The test suite is changed to preserve results of each test recipe. 2639 A new directory test-runs/ with subdirectories named like the 2640 test recipes are created in the build tree for this purpose. 2641 2642 *Richard Levitte* 2643 2644 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 2645 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 2646 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 2647 2648 *David von Oheimb, Martin Peylo* 2649 2650 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 2651 It supports arbitrary request and response content types, GET redirection, 2652 TLS, connections via HTTP(S) proxies, connections and exchange via 2653 user-defined BIOs (allowing implicit connections), persistent connections, 2654 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 2655 The legacy OCSP-focused (and only partly documented) API 2656 is retained for backward compatibility, while most of it is deprecated. 2657 2658 *David von Oheimb* 2659 2660 * Added `util/check-format.pl`, a tool for checking adherence to the 2661 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 2662 The checks performed are incomplete and yield some false positives. 2663 Still the tool should be useful for detecting most typical glitches. 2664 2665 *David von Oheimb* 2666 2667 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 2668 If domain name resolution yields multiple IP addresses all of them are tried 2669 after `connect()` failures. 2670 2671 *David von Oheimb* 2672 2673 * All of the low-level RSA functions have been deprecated. 2674 2675 *Paul Dale* 2676 2677 * X509 certificates signed using SHA1 are no longer allowed at security 2678 level 1 and above. 2679 2680 *Kurt Roeckx* 2681 2682 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 2683 modified to use PKEY APIs. These commands are now in maintenance mode 2684 and no new features will be added to them. 2685 2686 *Paul Dale* 2687 2688 * The command line utility rsautl has been deprecated. 2689 2690 *Paul Dale* 2691 2692 * The command line utilities genrsa and rsa have been modified to use PKEY 2693 APIs. They now write PKCS#8 keys by default. These commands are now in 2694 maintenance mode and no new features will be added to them. 2695 2696 *Paul Dale* 2697 2698 * All of the low-level DH functions have been deprecated. 2699 2700 *Paul Dale and Matt Caswell* 2701 2702 * All of the low-level DSA functions have been deprecated. 2703 2704 *Paul Dale* 2705 2706 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 2707 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 2708 2709 *Richard Levitte* 2710 2711 * Deprecated low-level ECDH and ECDSA functions. 2712 2713 *Paul Dale* 2714 2715 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 2716 2717 *Richard Levitte* 2718 2719 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 2720 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 2721 a new formulation to include all the things it can be used for, 2722 as well as words of caution. 2723 2724 *Richard Levitte* 2725 2726 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 2727 2728 *Paul Dale* 2729 2730 * All of the low-level HMAC functions have been deprecated. 2731 2732 *Paul Dale and David von Oheimb* 2733 2734 * Over two thousand fixes were made to the documentation, including: 2735 - Common options (such as -rand/-writerand, TLS version control, etc) 2736 were refactored and point to newly-enhanced descriptions in openssl.pod. 2737 - Added style conformance for all options (with help from Richard Levitte), 2738 documented all reported missing options, added a CI build to check 2739 that all options are documented and that no unimplemented options 2740 are documented. 2741 - Documented some internals, such as all use of environment variables. 2742 - Addressed all internal broken L<> references. 2743 2744 *Rich Salz* 2745 2746 * All of the low-level CMAC functions have been deprecated. 2747 2748 *Paul Dale* 2749 2750 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 2751 functions have been deprecated. 2752 2753 *Paul Dale and David von Oheimb* 2754 2755 * Corrected the documentation of the return values from the `EVP_DigestSign*` 2756 set of functions. The documentation mentioned negative values for some 2757 errors, but this was never the case, so the mention of negative values 2758 was removed. 2759 2760 Code that followed the documentation and thereby check with something 2761 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 2762 2763 *Richard Levitte* 2764 2765 * All of the low-level cipher functions have been deprecated. 2766 2767 *Matt Caswell and Paul Dale* 2768 2769 * Removed include/openssl/opensslconf.h.in and replaced it with 2770 include/openssl/configuration.h.in, which differs in not including 2771 <openssl/macros.h>. A short header include/openssl/opensslconf.h 2772 was added to include both. 2773 2774 This allows internal hacks where one might need to modify the set 2775 of configured macros, for example this if deprecated symbols are 2776 still supposed to be available internally: 2777 2778 #include <openssl/configuration.h> 2779 2780 #undef OPENSSL_NO_DEPRECATED 2781 #define OPENSSL_SUPPRESS_DEPRECATED 2782 2783 #include <openssl/macros.h> 2784 2785 This should not be used by applications that use the exported 2786 symbols, as that will lead to linking errors. 2787 2788 *Richard Levitte* 2789 2790 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 2791 used in exponentiation with 512-bit moduli. No EC algorithms are 2792 affected. Analysis suggests that attacks against 2-prime RSA1024, 2793 3-prime RSA1536, and DSA1024 as a result of this defect would be very 2794 difficult to perform and are not believed likely. Attacks against DH512 2795 are considered just feasible. However, for an attack the target would 2796 have to reuse the DH512 private key, which is not recommended anyway. 2797 Also applications directly using the low-level API BN_mod_exp may be 2798 affected if they use BN_FLG_CONSTTIME. 2799 ([CVE-2019-1551]) 2800 2801 *Andy Polyakov* 2802 2803 * Most memory-debug features have been deprecated, and the functionality 2804 replaced with no-ops. 2805 2806 *Rich Salz* 2807 2808 * Added documentation for the STACK API. 2809 2810 *Rich Salz* 2811 2812 * Introduced a new method type and API, OSSL_ENCODER, to represent 2813 generic encoders. These do the same sort of job that PEM writers 2814 and d2i functions do, but with support for methods supplied by 2815 providers, and the possibility for providers to support other 2816 formats as well. 2817 2818 *Richard Levitte* 2819 2820 * Introduced a new method type and API, OSSL_DECODER, to represent 2821 generic decoders. These do the same sort of job that PEM readers 2822 and i2d functions do, but with support for methods supplied by 2823 providers, and the possibility for providers to support other 2824 formats as well. 2825 2826 *Richard Levitte* 2827 2828 * Added a .pragma directive to the syntax of configuration files, to 2829 allow varying behavior in a supported and predictable manner. 2830 Currently added pragma: 2831 2832 .pragma dollarid:on 2833 2834 This allows dollar signs to be a keyword character unless it's 2835 followed by a opening brace or parenthesis. This is useful for 2836 platforms where dollar signs are commonly used in names, such as 2837 volume names and system directory names on VMS. 2838 2839 *Richard Levitte* 2840 2841 * Added functionality to create an EVP_PKEY from user data. 2842 2843 *Richard Levitte* 2844 2845 * Change the interpretation of the '--api' configuration option to 2846 mean that this is a desired API compatibility level with no 2847 further meaning. The previous interpretation, that this would 2848 also mean to remove all deprecated symbols up to and including 2849 the given version, no requires that 'no-deprecated' is also used 2850 in the configuration. 2851 2852 When building applications, the desired API compatibility level 2853 can be set with the OPENSSL_API_COMPAT macro like before. For 2854 API compatibility version below 3.0, the old style numerical 2855 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 2856 For version 3.0 and on, the value is expected to be the decimal 2857 value calculated from the major and minor version like this: 2858 2859 MAJOR * 10000 + MINOR * 100 2860 2861 Examples: 2862 2863 -DOPENSSL_API_COMPAT=30000 For 3.0 2864 -DOPENSSL_API_COMPAT=30200 For 3.2 2865 2866 To hide declarations that are deprecated up to and including the 2867 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 2868 given when building the application as well. 2869 2870 *Richard Levitte* 2871 2872 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 2873 access to certificate and CRL stores via URIs and OSSL_STORE 2874 loaders. 2875 2876 This adds the following functions: 2877 2878 - X509_LOOKUP_store() 2879 - X509_STORE_load_file() 2880 - X509_STORE_load_path() 2881 - X509_STORE_load_store() 2882 - SSL_add_store_cert_subjects_to_stack() 2883 - SSL_CTX_set_default_verify_store() 2884 - SSL_CTX_load_verify_file() 2885 - SSL_CTX_load_verify_dir() 2886 - SSL_CTX_load_verify_store() 2887 2888 *Richard Levitte* 2889 2890 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2891 The presence of this system service is determined at run-time. 2892 2893 *Richard Levitte* 2894 2895 * Added functionality to create an EVP_PKEY context based on data 2896 for methods from providers. This takes an algorithm name and a 2897 property query string and simply stores them, with the intent 2898 that any operation that uses this context will use those strings 2899 to fetch the needed methods implicitly, thereby making the port 2900 of application written for pre-3.0 OpenSSL easier. 2901 2902 *Richard Levitte* 2903 2904 * The undocumented function NCONF_WIN32() has been deprecated; for 2905 conversion details see the HISTORY section of doc/man5/config.pod 2906 2907 *Rich Salz* 2908 2909 * Introduced the new functions EVP_DigestSignInit_ex() and 2910 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 2911 EVP_DigestVerifyUpdate() have been converted to functions. See the man 2912 pages for further details. 2913 2914 *Matt Caswell* 2915 2916 * Over two thousand fixes were made to the documentation, including: 2917 adding missing command flags, better style conformance, documentation 2918 of internals, etc. 2919 2920 *Rich Salz, Richard Levitte* 2921 2922 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 2923 X25519, X448, Ed25519 and Ed448. 2924 2925 *Patrick Steuer* 2926 2927 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2928 the first value. 2929 2930 *Jon Spillett* 2931 2932 * Deprecated the public definition of `ERR_STATE` as well as the function 2933 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 2934 opaque type. 2935 2936 *Richard Levitte* 2937 2938 * Added ERR functionality to give callers access to the stored function 2939 names that have replaced the older function code based functions. 2940 2941 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 2942 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 2943 ERR_peek_error_all() and ERR_peek_last_error_all(). 2944 2945 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 2946 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 2947 ERR_func_error_string(). 2948 2949 *Richard Levitte* 2950 2951 * Extended testing to be verbose for failing tests only. The make variables 2952 VERBOSE_FAILURE or VF can be used to enable this: 2953 2954 $ make VF=1 test # Unix 2955 $ mms /macro=(VF=1) test ! OpenVMS 2956 $ nmake VF=1 test # Windows 2957 2958 *Richard Levitte* 2959 2960 * Added the `-copy_extensions` option to the `x509` command for use with 2961 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 2962 all extensions in the request are copied to the certificate or vice versa. 2963 2964 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 2965 2966 * Added the `-copy_extensions` option to the `req` command for use with 2967 `-x509`. When given with the `copy` or `copyall` argument, 2968 all extensions in the certification request are copied to the certificate. 2969 2970 *David von Oheimb* 2971 2972 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 2973 they generate are by default RFC 5280 compliant in the following sense: 2974 There is a subjectKeyIdentifier extension with a hash value of the public key 2975 and for not self-signed certs there is an authorityKeyIdentifier extension 2976 with a keyIdentifier field or issuer information identifying the signing key. 2977 This is done unless some configuration overrides the new default behavior, 2978 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 2979 2980 *David von Oheimb* 2981 2982 * Added several checks to `X509_verify_cert()` according to requirements in 2983 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 2984 (which may be done by using the CLI option `-x509_strict`): 2985 * The basicConstraints of CA certificates must be marked critical. 2986 * CA certificates must explicitly include the keyUsage extension. 2987 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 2988 * The issuer name of any certificate must not be empty. 2989 * The subject name of CA certs, certs with keyUsage crlSign, 2990 and certs without subjectAlternativeName must not be empty. 2991 * If a subjectAlternativeName extension is given it must not be empty. 2992 * The signatureAlgorithm field and the cert signature must be consistent. 2993 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 2994 must not be marked critical. 2995 * The authorityKeyIdentifier must be given for X.509v3 certs 2996 unless they are self-signed. 2997 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 2998 2999 *David von Oheimb* 3000 3001 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 3002 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 3003 3004 *Tomáš Mráz* 3005 3006 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3007 used even when parsing explicit parameters, when loading a encoded key 3008 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3009 `EC_GROUP_new_from_ecparameters()`. 3010 This prevents bypass of security hardening and performance gains, 3011 especially for curves with specialized EC_METHODs. 3012 By default, if a key encoded with explicit parameters is loaded and later 3013 encoded, the output is still encoded with explicit parameters, even if 3014 internally a "named" EC_GROUP is used for computation. 3015 3016 *Nicola Tuveri* 3017 3018 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3019 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3020 NULL. After this change, only the cofactor parameter can be NULL. It also 3021 does some minimal sanity checks on the passed order. 3022 ([CVE-2019-1547]) 3023 3024 *Billy Bob Brumley* 3025 3026 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3027 An attack is simple, if the first CMS_recipientInfo is valid but the 3028 second CMS_recipientInfo is chosen ciphertext. If the second 3029 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3030 encryption key will be replaced by garbage, and the message cannot be 3031 decoded, but if the RSA decryption fails, the correct encryption key is 3032 used and the recipient will not notice the attack. 3033 As a work around for this potential attack the length of the decrypted 3034 key must be equal to the cipher default key length, in case the 3035 certificate is not given and all recipientInfo are tried out. 3036 The old behaviour can be re-enabled in the CMS code by setting the 3037 CMS_DEBUG_DECRYPT flag. 3038 3039 *Bernd Edlinger* 3040 3041 * Early start up entropy quality from the DEVRANDOM seed source has been 3042 improved for older Linux systems. The RAND subsystem will wait for 3043 /dev/random to be producing output before seeding from /dev/urandom. 3044 The seeded state is stored for future library initialisations using 3045 a system global shared memory segment. The shared memory identifier 3046 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 3047 the desired value. The default identifier is 114. 3048 3049 *Paul Dale* 3050 3051 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 3052 when primes for RSA keys are computed. 3053 Since we previously always generated primes == 2 (mod 3) for RSA keys, 3054 the 2-prime and 3-prime RSA modules were easy to distinguish, since 3055 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore, fingerprinting 3056 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 3057 This avoids possible fingerprinting of newly generated RSA modules. 3058 3059 *Bernd Edlinger* 3060 3061 * Correct the extended master secret constant on EBCDIC systems. Without this 3062 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 3063 negotiate EMS will fail. Unfortunately this also means that TLS connections 3064 between EBCDIC systems with this fix, and EBCDIC systems without this 3065 fix will fail if they negotiate EMS. 3066 3067 *Matt Caswell* 3068 3069 * Changed the library initialisation so that the config file is now loaded 3070 by default. This was already the case for libssl. It now occurs for both 3071 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 3072 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 3073 3074 *Matt Caswell* 3075 3076 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 3077 where the former acts as a replacement for `ERR_put_error()`, and the 3078 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 3079 `ERR_raise_data()` adds more flexibility by taking a format string and 3080 an arbitrary number of arguments following it, to be processed with 3081 `BIO_snprintf()`. 3082 3083 *Richard Levitte* 3084 3085 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 3086 to check if a named provider is loaded and available. When called, it 3087 will also activate all fallback providers if such are still present. 3088 3089 *Richard Levitte* 3090 3091 * Enforce a minimum DH modulus size of 512 bits. 3092 3093 *Bernd Edlinger* 3094 3095 * Changed DH parameters to generate the order q subgroup instead of 2q. 3096 Previously generated DH parameters are still accepted by DH_check 3097 but DH_generate_key works around that by clearing bit 0 of the 3098 private key for those. This avoids leaking bit 0 of the private key. 3099 3100 *Bernd Edlinger* 3101 3102 * Significantly reduce secure memory usage by the randomness pools. 3103 3104 *Paul Dale* 3105 3106 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 3107 deprecated. 3108 3109 *Rich Salz* 3110 3111 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 3112 algorithms. An implementation of a key exchange algorithm can be obtained 3113 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 3114 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 3115 the older EVP_PKEY_derive_init() function. See the man pages for the new 3116 functions for further details. 3117 3118 *Matt Caswell* 3119 3120 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 3121 3122 *Matt Caswell* 3123 3124 * Removed the function names from error messages and deprecated the 3125 xxx_F_xxx define's. 3126 3127 *Richard Levitte* 3128 3129 * Removed NextStep support and the macro OPENSSL_UNISTD 3130 3131 *Rich Salz* 3132 3133 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 3134 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 3135 Also removed "export var as function" capability; we do not export 3136 variables, only functions. 3137 3138 *Rich Salz* 3139 3140 * RC5_32_set_key has been changed to return an int type, with 0 indicating 3141 an error and 1 indicating success. In previous versions of OpenSSL this 3142 was a void type. If a key was set longer than the maximum possible this 3143 would crash. 3144 3145 *Matt Caswell* 3146 3147 * Support SM2 signing and verification schemes with X509 certificate. 3148 3149 *Paul Yang* 3150 3151 * Use SHA256 as the default digest for TS query in the `ts` app. 3152 3153 *Tomáš Mráz* 3154 3155 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 3156 3157 *Shane Lontis* 3158 3159 * Default cipher lists/suites are now available via a function, the 3160 #defines are deprecated. 3161 3162 *Todd Short* 3163 3164 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 3165 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 3166 for Windows Store apps easier. Also, the "no-uplink" option has been added. 3167 3168 *Kenji Mouri* 3169 3170 * Join the directories crypto/x509 and crypto/x509v3 3171 3172 *Richard Levitte* 3173 3174 * Added command 'openssl kdf' that uses the EVP_KDF API. 3175 3176 *Shane Lontis* 3177 3178 * Added command 'openssl mac' that uses the EVP_MAC API. 3179 3180 *Shane Lontis* 3181 3182 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 3183 as default directories. Also added the command 'openssl info' 3184 for scripting purposes. 3185 3186 *Richard Levitte* 3187 3188 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 3189 deprecated. 3190 3191 *Matt Caswell* 3192 3193 * Add prediction resistance to the DRBG reseeding process. 3194 3195 *Paul Dale* 3196 3197 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 3198 mandated by IEEE Std 1619-2018. 3199 3200 *Paul Dale* 3201 3202 * Added newline escaping functionality to a filename when using openssl dgst. 3203 This output format is to replicate the output format found in the `*sum` 3204 checksum programs. This aims to preserve backward compatibility. 3205 3206 *Matt Eaton, Richard Levitte, and Paul Dale* 3207 3208 * Removed the heartbeat message in DTLS feature, as it has very 3209 little usage and doesn't seem to fulfill a valuable purpose. 3210 The configuration option is now deprecated. 3211 3212 *Richard Levitte* 3213 3214 * Changed the output of 'openssl {digestname} < file' to display the 3215 digest name in its output. 3216 3217 *Richard Levitte* 3218 3219 * Added a new generic trace API which provides support for enabling 3220 instrumentation through trace output. 3221 3222 *Richard Levitte & Matthias St. Pierre* 3223 3224 * Added build tests for C++. These are generated files that only do one 3225 thing, to include one public OpenSSL head file each. This tests that 3226 the public header files can be usefully included in a C++ application. 3227 3228 This test isn't enabled by default. It can be enabled with the option 3229 'enable-buildtest-c++'. 3230 3231 *Richard Levitte* 3232 3233 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 3234 3235 *Robbie Harwood* 3236 3237 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 3238 3239 *Simo Sorce* 3240 3241 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 3242 3243 *Shane Lontis* 3244 3245 * Added KMAC to EVP_MAC. 3246 3247 *Shane Lontis* 3248 3249 * Added property based algorithm implementation selection framework to 3250 the core. 3251 3252 *Paul Dale* 3253 3254 * Added SCA hardening for modular field inversion in EC_GROUP through 3255 a new dedicated field_inv() pointer in EC_METHOD. 3256 This also addresses a leakage affecting conversions from projective 3257 to affine coordinates. 3258 3259 *Billy Bob Brumley, Nicola Tuveri* 3260 3261 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 3262 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 3263 those algorithms that were already supported through the EVP_PKEY API 3264 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 3265 and scrypt are now wrappers that call EVP_KDF. 3266 3267 *David Makepeace* 3268 3269 * Build devcrypto engine as a dynamic engine. 3270 3271 *Eneas U de Queiroz* 3272 3273 * Add keyed BLAKE2 to EVP_MAC. 3274 3275 *Antoine Salon* 3276 3277 * Fix a bug in the computation of the endpoint-pair shared secret used 3278 by DTLS over SCTP. This breaks interoperability with older versions 3279 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 3280 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 3281 interoperability with such broken implementations. However, enabling 3282 this switch breaks interoperability with correct implementations. 3283 3284 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3285 reused X509_PUBKEY object if the second PUBKEY is malformed. 3286 3287 *Bernd Edlinger* 3288 3289 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3290 3291 *Richard Levitte* 3292 3293 * Changed the license to the Apache License v2.0. 3294 3295 *Richard Levitte* 3296 3297 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 3298 3299 - Major releases (indicated by incrementing the MAJOR release number) 3300 may introduce incompatible API/ABI changes. 3301 - Minor releases (indicated by incrementing the MINOR release number) 3302 may introduce new features but retain API/ABI compatibility. 3303 - Patch releases (indicated by incrementing the PATCH number) 3304 are intended for bug fixes and other improvements of existing 3305 features only (like improving performance or adding documentation) 3306 and retain API/ABI compatibility. 3307 3308 *Richard Levitte* 3309 3310 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 3311 3312 *Todd Short* 3313 3314 * Remove the 'dist' target and add a tarball building script. The 3315 'dist' target has fallen out of use, and it shouldn't be 3316 necessary to configure just to create a source distribution. 3317 3318 *Richard Levitte* 3319 3320 * Recreate the OS390-Unix config target. It no longer relies on a 3321 special script like it did for OpenSSL pre-1.1.0. 3322 3323 *Richard Levitte* 3324 3325 * Instead of having the source directories listed in Configure, add 3326 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 3327 look into. 3328 3329 *Richard Levitte* 3330 3331 * Add GMAC to EVP_MAC. 3332 3333 *Paul Dale* 3334 3335 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 3336 3337 *Richard Levitte* 3338 3339 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 3340 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 3341 to facilitate the continued use of MACs through raw private keys in 3342 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 3343 3344 *Richard Levitte* 3345 3346 * Deprecate ECDH_KDF_X9_62(). 3347 3348 *Antoine Salon* 3349 3350 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 3351 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 3352 are retained for backwards compatibility. 3353 3354 *Antoine Salon* 3355 3356 * AES-XTS mode now enforces that its two keys are different to mitigate 3357 the attacked described in "Efficient Instantiations of Tweakable 3358 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 3359 Details of this attack can be obtained from: 3360 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 3361 3362 *Paul Dale* 3363 3364 * Rename the object files, i.e. give them other names than in previous 3365 versions. Their names now include the name of the final product, as 3366 well as its type mnemonic (bin, lib, shlib). 3367 3368 *Richard Levitte* 3369 3370 * Added new option for 'openssl list', '-objects', which will display the 3371 list of built in objects, i.e. OIDs with names. 3372 3373 *Richard Levitte* 3374 3375 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 3376 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 3377 be set explicitly. 3378 3379 *Chris Novakovic* 3380 3381 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 3382 improves application performance by removing data copies and providing 3383 applications with zero-copy system calls such as sendfile and splice. 3384 3385 *Boris Pismenny* 3386 3387 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 3388 3389 *Martin Elshuber* 3390 3391 * `PKCS12_parse` now maintains the order of the parsed certificates 3392 when outputting them via `*ca` (rather than reversing it). 3393 3394 *David von Oheimb* 3395 3396 * Deprecated pthread fork support methods. 3397 3398 *Randall S. Becker* 3399 3400 * Added support for FFDHE key exchange in TLS 1.3. 3401 3402 *Raja Ashok* 3403 3404 * Added a new concept for OpenSSL plugability: providers. This 3405 functionality is designed to replace the ENGINE API and ENGINE 3406 implementations, and to be much more dynamic, allowing provider 3407 authors to introduce new algorithms among other things, as long as 3408 there's an API that supports the algorithm type. 3409 3410 With this concept comes a new core API for interaction between 3411 libcrypto and provider implementations. Public libcrypto functions 3412 that want to use providers do so through this core API. 3413 3414 The main documentation for this core API is found in 3415 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 3416 refer to other manuals describing the API specific for supported 3417 algorithm types (also called operations). 3418 3419 *The OpenSSL team* 3420 3421OpenSSL 1.1.1 3422------------- 3423 3424### Changes between 1.1.1m and 1.1.1n [xx XXX xxxx] 3425 3426### Changes between 1.1.1l and 1.1.1m [14 Dec 2021] 3427 3428 * Avoid loading of a dynamic engine twice. 3429 3430 *Bernd Edlinger* 3431 3432 * Prioritise DANE TLSA issuer certs over peer certs 3433 3434 *Viktor Dukhovni* 3435 3436 * Fixed random API for MacOS prior to 10.12 3437 3438 These MacOS versions don't support the CommonCrypto APIs 3439 3440 *Lenny Primak* 3441 3442### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 3443 3444 * Fixed an SM2 Decryption Buffer Overflow. 3445 3446 In order to decrypt SM2 encrypted data an application is expected to 3447 call the API function EVP_PKEY_decrypt(). Typically an application will 3448 call this function twice. The first time, on entry, the "out" parameter 3449 can be NULL and, on exit, the "outlen" parameter is populated with the 3450 buffer size required to hold the decrypted plaintext. The application 3451 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 3452 again, but this time passing a non-NULL value for the "out" parameter. 3453 3454 A bug in the implementation of the SM2 decryption code means that the 3455 calculation of the buffer size required to hold the plaintext returned 3456 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 3457 size required by the second call. This can lead to a buffer overflow 3458 when EVP_PKEY_decrypt() is called by the application a second time with 3459 a buffer that is too small. 3460 3461 A malicious attacker who is able present SM2 content for decryption to 3462 an application could cause attacker chosen data to overflow the buffer 3463 by up to a maximum of 62 bytes altering the contents of other data held 3464 after the buffer, possibly changing application behaviour or causing 3465 the application to crash. The location of the buffer is application 3466 dependent but is typically heap allocated. 3467 ([CVE-2021-3711]) 3468 3469 *Matt Caswell* 3470 3471 * Fixed various read buffer overruns processing ASN.1 strings 3472 3473 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 3474 structure which contains a buffer holding the string data and a field 3475 holding the buffer length. This contrasts with normal C strings which 3476 are represented as a buffer for the string data which is terminated 3477 with a NUL (0) byte. 3478 3479 Although not a strict requirement, ASN.1 strings that are parsed using 3480 OpenSSL's own "d2i" functions (and other similar parsing functions) as 3481 well as any string whose value has been set with the ASN1_STRING_set() 3482 function will additionally NUL terminate the byte array in the 3483 ASN1_STRING structure. 3484 3485 However, it is possible for applications to directly construct valid 3486 ASN1_STRING structures which do not NUL terminate the byte array by 3487 directly setting the "data" and "length" fields in the ASN1_STRING 3488 array. This can also happen by using the ASN1_STRING_set0() function. 3489 3490 Numerous OpenSSL functions that print ASN.1 data have been found to 3491 assume that the ASN1_STRING byte array will be NUL terminated, even 3492 though this is not guaranteed for strings that have been directly 3493 constructed. Where an application requests an ASN.1 structure to be 3494 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 3495 been directly constructed by the application without NUL terminating 3496 the "data" field, then a read buffer overrun can occur. 3497 3498 The same thing can also occur during name constraints processing 3499 of certificates (for example if a certificate has been directly 3500 constructed by the application instead of loading it via the OpenSSL 3501 parsing functions, and the certificate contains non NUL terminated 3502 ASN1_STRING structures). It can also occur in the X509_get1_email(), 3503 X509_REQ_get1_email() and X509_get1_ocsp() functions. 3504 3505 If a malicious actor can cause an application to directly construct an 3506 ASN1_STRING and then process it through one of the affected OpenSSL 3507 functions then this issue could be hit. This might result in a crash 3508 (causing a Denial of Service attack). It could also result in the 3509 disclosure of private memory contents (such as private keys, or 3510 sensitive plaintext). 3511 ([CVE-2021-3712]) 3512 3513 *Matt Caswell* 3514 3515### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 3516 3517 * Fixed a problem with verifying a certificate chain when using the 3518 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 3519 the certificates present in a certificate chain. It is not set by default. 3520 3521 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 3522 the chain that have explicitly encoded elliptic curve parameters was added 3523 as an additional strict check. 3524 3525 An error in the implementation of this check meant that the result of a 3526 previous check to confirm that certificates in the chain are valid CA 3527 certificates was overwritten. This effectively bypasses the check 3528 that non-CA certificates must not be able to issue other certificates. 3529 3530 If a "purpose" has been configured then there is a subsequent opportunity 3531 for checks that the certificate is a valid CA. All of the named "purpose" 3532 values implemented in libcrypto perform this check. Therefore, where 3533 a purpose is set the certificate chain will still be rejected even when the 3534 strict flag has been used. A purpose is set by default in libssl client and 3535 server certificate verification routines, but it can be overridden or 3536 removed by an application. 3537 3538 In order to be affected, an application must explicitly set the 3539 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 3540 for the certificate verification or, in the case of TLS client or server 3541 applications, override the default purpose. 3542 ([CVE-2021-3450]) 3543 3544 *Tomáš Mráz* 3545 3546 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 3547 crafted renegotiation ClientHello message from a client. If a TLSv1.2 3548 renegotiation ClientHello omits the signature_algorithms extension (where it 3549 was present in the initial ClientHello), but includes a 3550 signature_algorithms_cert extension then a NULL pointer dereference will 3551 result, leading to a crash and a denial of service attack. 3552 3553 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 3554 (which is the default configuration). OpenSSL TLS clients are not impacted by 3555 this issue. 3556 ([CVE-2021-3449]) 3557 3558 *Peter Kästle and Samuel Sapalski* 3559 3560### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 3561 3562 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 3563 create a unique hash value based on the issuer and serial number data 3564 contained within an X509 certificate. However, it was failing to correctly 3565 handle any errors that may occur while parsing the issuer field (which might 3566 occur if the issuer field is maliciously constructed). This may subsequently 3567 result in a NULL pointer deref and a crash leading to a potential denial of 3568 service attack. 3569 ([CVE-2021-23841]) 3570 3571 *Matt Caswell* 3572 3573 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 3574 padding mode to correctly check for rollback attacks. This is considered a 3575 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 3576 CVE-2021-23839. 3577 3578 *Matt Caswell* 3579 3580 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 3581 functions. Previously they could overflow the output length argument in some 3582 cases where the input length is close to the maximum permissible length for 3583 an integer on the platform. In such cases the return value from the function 3584 call would be 1 (indicating success), but the output length value would be 3585 negative. This could cause applications to behave incorrectly or crash. 3586 ([CVE-2021-23840]) 3587 3588 *Matt Caswell* 3589 3590 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 3591 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 3592 could be exploited in a side channel attack to recover the password. Since 3593 the attack is local host only this is outside of the current OpenSSL 3594 threat model and therefore no CVE is assigned. 3595 3596 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 3597 issue. 3598 3599 *Matt Caswell* 3600 3601### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 3602 3603 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 3604 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 3605 If an attacker can control both items being compared then this could lead 3606 to a possible denial of service attack. OpenSSL itself uses the 3607 GENERAL_NAME_cmp function for two purposes: 3608 1) Comparing CRL distribution point names between an available CRL and a 3609 CRL distribution point embedded in an X509 certificate 3610 2) When verifying that a timestamp response token signer matches the 3611 timestamp authority name (exposed via the API functions 3612 TS_RESP_verify_response and TS_RESP_verify_token) 3613 ([CVE-2020-1971]) 3614 3615 *Matt Caswell* 3616 3617### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 3618 3619 * Certificates with explicit curve parameters are now disallowed in 3620 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 3621 3622 *Tomáš Mráz* 3623 3624 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 3625 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 3626 conversely, silently ignore DTLS protocol version bounds when configuring 3627 TLS-based contexts. The commands can be repeated to set bounds of both 3628 types. The same applies with the corresponding "min_protocol" and 3629 "max_protocol" command-line switches, in case some application uses both TLS 3630 and DTLS. 3631 3632 SSL_CTX instances that are created for a fixed protocol version (e.g. 3633 TLSv1_server_method()) also silently ignore version bounds. Previously 3634 attempts to apply bounds to these protocol versions would result in an 3635 error. Now only the "version-flexible" SSL_CTX instances are subject to 3636 limits in configuration files in command-line options. 3637 3638 *Viktor Dukhovni* 3639 3640 * Handshake now fails if Extended Master Secret extension is dropped 3641 on renegotiation. 3642 3643 *Tomáš Mráz* 3644 3645 * The Oracle Developer Studio compiler will start reporting deprecated APIs 3646 3647### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 3648 3649 * Fixed segmentation fault in SSL_check_chain() 3650 Server or client applications that call the SSL_check_chain() function 3651 during or after a TLS 1.3 handshake may crash due to a NULL pointer 3652 dereference as a result of incorrect handling of the 3653 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 3654 or unrecognised signature algorithm is received from the peer. This could 3655 be exploited by a malicious peer in a Denial of Service attack. 3656 ([CVE-2020-1967]) 3657 3658 *Benjamin Kaduk* 3659 3660 * Added AES consttime code for no-asm configurations 3661 an optional constant time support for AES was added 3662 when building openssl for no-asm. 3663 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 3664 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 3665 At this time this feature is by default disabled. 3666 It will be enabled by default in 3.0. 3667 3668 *Bernd Edlinger* 3669 3670### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 3671 3672 * Revert the change of EOF detection while reading in libssl to avoid 3673 regressions in applications depending on the current way of reporting 3674 the EOF. As the existing method is not fully accurate the change to 3675 reporting the EOF via SSL_ERROR_SSL is kept on the current development 3676 branch and will be present in the 3.0 release. 3677 3678 *Tomáš Mráz* 3679 3680 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 3681 when primes for RSA keys are computed. 3682 Since we previously always generated primes == 2 (mod 3) for RSA keys, 3683 the 2-prime and 3-prime RSA modules were easy to distinguish, since 3684 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore, fingerprinting 3685 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 3686 This avoids possible fingerprinting of newly generated RSA modules. 3687 3688 *Bernd Edlinger* 3689 3690### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 3691 3692 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 3693 while reading in libssl then we would report an error back to the 3694 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 3695 an error to the stack (which means we instead return SSL_ERROR_SSL) and 3696 therefore give a hint as to what went wrong. 3697 3698 *Matt Caswell* 3699 3700 * Check that ed25519 and ed448 are allowed by the security level. Previously 3701 signature algorithms not using an MD were not being checked that they were 3702 allowed by the security level. 3703 3704 *Kurt Roeckx* 3705 3706 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 3707 was not quite right. The behaviour was not consistent between resumption 3708 and normal handshakes, and also not quite consistent with historical 3709 behaviour. The behaviour in various scenarios has been clarified and 3710 it has been updated to make it match historical behaviour as closely as 3711 possible. 3712 3713 *Matt Caswell* 3714 3715 * *[VMS only]* The header files that the VMS compilers include automatically, 3716 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 3717 that the C++ compiler doesn't understand. This is a shortcoming in the 3718 compiler, but can be worked around with `__cplusplus` guards. 3719 3720 C++ applications that use OpenSSL libraries must be compiled using the 3721 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 3722 functions. Otherwise, only functions with symbols of less than 31 3723 characters can be used, as the linker will not be able to successfully 3724 resolve symbols with longer names. 3725 3726 *Richard Levitte* 3727 3728 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 3729 The presence of this system service is determined at run-time. 3730 3731 *Richard Levitte* 3732 3733 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 3734 the first value. 3735 3736 *Jon Spillett* 3737 3738### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 3739 3740 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 3741 number generator (RNG). This was intended to include protection in the 3742 event of a fork() system call in order to ensure that the parent and child 3743 processes did not share the same RNG state. However, this protection was not 3744 being used in the default case. 3745 3746 A partial mitigation for this issue is that the output from a high 3747 precision timer is mixed into the RNG state so the likelihood of a parent 3748 and child process sharing state is significantly reduced. 3749 3750 If an application already calls OPENSSL_init_crypto() explicitly using 3751 OPENSSL_INIT_ATFORK then this problem does not occur at all. 3752 ([CVE-2019-1549]) 3753 3754 *Matthias St. Pierre* 3755 3756 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3757 used even when parsing explicit parameters, when loading a encoded key 3758 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3759 `EC_GROUP_new_from_ecparameters()`. 3760 This prevents bypass of security hardening and performance gains, 3761 especially for curves with specialized EC_METHODs. 3762 By default, if a key encoded with explicit parameters is loaded and later 3763 encoded, the output is still encoded with explicit parameters, even if 3764 internally a "named" EC_GROUP is used for computation. 3765 3766 *Nicola Tuveri* 3767 3768 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3769 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3770 NULL. After this change, only the cofactor parameter can be NULL. It also 3771 does some minimal sanity checks on the passed order. 3772 ([CVE-2019-1547]) 3773 3774 *Billy Bob Brumley* 3775 3776 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3777 An attack is simple, if the first CMS_recipientInfo is valid but the 3778 second CMS_recipientInfo is chosen ciphertext. If the second 3779 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3780 encryption key will be replaced by garbage, and the message cannot be 3781 decoded, but if the RSA decryption fails, the correct encryption key is 3782 used and the recipient will not notice the attack. 3783 As a work around for this potential attack the length of the decrypted 3784 key must be equal to the cipher default key length, in case the 3785 certificate is not given and all recipientInfo are tried out. 3786 The old behaviour can be re-enabled in the CMS code by setting the 3787 CMS_DEBUG_DECRYPT flag. 3788 ([CVE-2019-1563]) 3789 3790 *Bernd Edlinger* 3791 3792 * Early start up entropy quality from the DEVRANDOM seed source has been 3793 improved for older Linux systems. The RAND subsystem will wait for 3794 /dev/random to be producing output before seeding from /dev/urandom. 3795 The seeded state is stored for future library initialisations using 3796 a system global shared memory segment. The shared memory identifier 3797 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 3798 the desired value. The default identifier is 114. 3799 3800 *Paul Dale* 3801 3802 * Correct the extended master secret constant on EBCDIC systems. Without this 3803 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 3804 negotiate EMS will fail. Unfortunately this also means that TLS connections 3805 between EBCDIC systems with this fix, and EBCDIC systems without this 3806 fix will fail if they negotiate EMS. 3807 3808 *Matt Caswell* 3809 3810 * Use Windows installation paths in the mingw builds 3811 3812 Mingw isn't a POSIX environment per se, which means that Windows 3813 paths should be used for installation. 3814 ([CVE-2019-1552]) 3815 3816 *Richard Levitte* 3817 3818 * Changed DH_check to accept parameters with order q and 2q subgroups. 3819 With order 2q subgroups the bit 0 of the private key is not secret 3820 but DH_generate_key works around that by clearing bit 0 of the 3821 private key for those. This avoids leaking bit 0 of the private key. 3822 3823 *Bernd Edlinger* 3824 3825 * Significantly reduce secure memory usage by the randomness pools. 3826 3827 *Paul Dale* 3828 3829 * Revert the DEVRANDOM_WAIT feature for Linux systems 3830 3831 The DEVRANDOM_WAIT feature added a select() call to wait for the 3832 /dev/random device to become readable before reading from the 3833 /dev/urandom device. 3834 3835 It turned out that this change had negative side effects on 3836 performance which were not acceptable. After some discussion it 3837 was decided to revert this feature and leave it up to the OS 3838 resp. the platform maintainer to ensure a proper initialization 3839 during early boot time. 3840 3841 *Matthias St. Pierre* 3842 3843### Changes between 1.1.1b and 1.1.1c [28 May 2019] 3844 3845 * Add build tests for C++. These are generated files that only do one 3846 thing, to include one public OpenSSL head file each. This tests that 3847 the public header files can be usefully included in a C++ application. 3848 3849 This test isn't enabled by default. It can be enabled with the option 3850 'enable-buildtest-c++'. 3851 3852 *Richard Levitte* 3853 3854 * Enable SHA3 pre-hashing for ECDSA and DSA. 3855 3856 *Patrick Steuer* 3857 3858 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3859 This changes the size when using the `genpkey` command when no size is given. 3860 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3861 generation commands to use 2048 bits by default. 3862 3863 *Kurt Roeckx* 3864 3865 * Reorganize the manual pages to consistently have RETURN VALUES, 3866 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 3867 util/fix-doc-nits accordingly. 3868 3869 *Paul Yang, Joshua Lock* 3870 3871 * Add the missing accessor EVP_PKEY_get0_engine() 3872 3873 *Matt Caswell* 3874 3875 * Have commands like `s_client` and `s_server` output the signature scheme 3876 along with other cipher suite parameters when debugging. 3877 3878 *Lorinczy Zsigmond* 3879 3880 * Make OPENSSL_config() error agnostic again. 3881 3882 *Richard Levitte* 3883 3884 * Do the error handling in RSA decryption constant time. 3885 3886 *Bernd Edlinger* 3887 3888 * Prevent over long nonces in ChaCha20-Poly1305. 3889 3890 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3891 for every encryption operation. RFC 7539 specifies that the nonce value 3892 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3893 and front pads the nonce with 0 bytes if it is less than 12 3894 bytes. However it also incorrectly allows a nonce to be set of up to 16 3895 bytes. In this case only the last 12 bytes are significant and any 3896 additional leading bytes are ignored. 3897 3898 It is a requirement of using this cipher that nonce values are 3899 unique. Messages encrypted using a reused nonce value are susceptible to 3900 serious confidentiality and integrity attacks. If an application changes 3901 the default nonce length to be longer than 12 bytes and then makes a 3902 change to the leading bytes of the nonce expecting the new value to be a 3903 new unique nonce then such an application could inadvertently encrypt 3904 messages with a reused nonce. 3905 3906 Additionally the ignored bytes in a long nonce are not covered by the 3907 integrity guarantee of this cipher. Any application that relies on the 3908 integrity of these ignored leading bytes of a long nonce may be further 3909 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3910 is safe because no such use sets such a long nonce value. However user 3911 applications that use this cipher directly and set a non-default nonce 3912 length to be longer than 12 bytes may be vulnerable. 3913 3914 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3915 Greef of Ronomon. 3916 ([CVE-2019-1543]) 3917 3918 *Matt Caswell* 3919 3920 * Add DEVRANDOM_WAIT feature for Linux systems 3921 3922 On older Linux systems where the getrandom() system call is not available, 3923 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 3924 Contrary to getrandom(), the /dev/urandom device will not block during 3925 early boot when the kernel CSPRNG has not been seeded yet. 3926 3927 To mitigate this known weakness, use select() to wait for /dev/random to 3928 become readable before reading from /dev/urandom. 3929 3930 * Ensure that SM2 only uses SM3 as digest algorithm 3931 3932 *Paul Yang* 3933 3934### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 3935 3936 * Change the info callback signals for the start and end of a post-handshake 3937 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 3938 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 3939 confused by this and assume that a TLSv1.2 renegotiation has started. This 3940 can break KeyUpdate handling. Instead we no longer signal the start and end 3941 of a post handshake message exchange (although the messages themselves are 3942 still signalled). This could break some applications that were expecting 3943 the old signals. However without this KeyUpdate is not usable for many 3944 applications. 3945 3946 *Matt Caswell* 3947 3948### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 3949 3950 * Timing vulnerability in DSA signature generation 3951 3952 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3953 timing side channel attack. An attacker could use variations in the signing 3954 algorithm to recover the private key. 3955 3956 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3957 ([CVE-2018-0734]) 3958 3959 *Paul Dale* 3960 3961 * Timing vulnerability in ECDSA signature generation 3962 3963 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3964 timing side channel attack. An attacker could use variations in the signing 3965 algorithm to recover the private key. 3966 3967 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3968 ([CVE-2018-0735]) 3969 3970 *Paul Dale* 3971 3972 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 3973 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 3974 of two gigabytes and the error handling improved. 3975 3976 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 3977 categorized as a normal bug, not a security issue, because the DRBG reseeds 3978 automatically and is fully functional even without additional randomness 3979 provided by the application. 3980 3981### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 3982 3983 * Add a new ClientHello callback. Provides a callback interface that gives 3984 the application the ability to adjust the nascent SSL object at the 3985 earliest stage of ClientHello processing, immediately after extensions have 3986 been collected but before they have been processed. In particular, this 3987 callback can adjust the supported TLS versions in response to the contents 3988 of the ClientHello 3989 3990 *Benjamin Kaduk* 3991 3992 * Add SM2 base algorithm support. 3993 3994 *Jack Lloyd* 3995 3996 * s390x assembly pack: add (improved) hardware-support for the following 3997 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 3998 aes-cfb/cfb8, aes-ecb. 3999 4000 *Patrick Steuer* 4001 4002 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 4003 parameter is no longer accepted, as it leads to a corrupt table. NULL 4004 pem_str is reserved for alias entries only. 4005 4006 *Richard Levitte* 4007 4008 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 4009 step for prime curves. The new implementation is based on formulae from 4010 differential addition-and-doubling in homogeneous projective coordinates 4011 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 4012 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 4013 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 4014 to work in projective coordinates. 4015 4016 *Billy Bob Brumley, Nicola Tuveri* 4017 4018 * Change generating and checking of primes so that the error rate of not 4019 being prime depends on the intended use based on the size of the input. 4020 For larger primes this will result in more rounds of Miller-Rabin. 4021 The maximal error rate for primes with more than 1080 bits is lowered 4022 to 2^-128. 4023 4024 *Kurt Roeckx, Annie Yousar* 4025 4026 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 4027 4028 *Kurt Roeckx* 4029 4030 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 4031 moving between systems, and to avoid confusion when a Windows build is 4032 done with mingw vs with MSVC. For POSIX installs, there's still a 4033 symlink or copy named 'tsget' to avoid that confusion as well. 4034 4035 *Richard Levitte* 4036 4037 * Revert blinding in ECDSA sign and instead make problematic addition 4038 length-invariant. Switch even to fixed-length Montgomery multiplication. 4039 4040 *Andy Polyakov* 4041 4042 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 4043 step for binary curves. The new implementation is based on formulae from 4044 differential addition-and-doubling in mixed Lopez-Dahab projective 4045 coordinates, modified to independently blind the operands. 4046 4047 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 4048 4049 * Add a scaffold to optionally enhance the Montgomery ladder implementation 4050 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 4051 EC_METHODs to implement their own specialized "ladder step", to take 4052 advantage of more favorable coordinate systems or more efficient 4053 differential addition-and-doubling algorithms. 4054 4055 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 4056 4057 * Modified the random device based seed sources to keep the relevant 4058 file descriptors open rather than reopening them on each access. 4059 This allows such sources to operate in a chroot() jail without 4060 the associated device nodes being available. This behaviour can be 4061 controlled using RAND_keep_random_devices_open(). 4062 4063 *Paul Dale* 4064 4065 * Numerous side-channel attack mitigations have been applied. This may have 4066 performance impacts for some algorithms for the benefit of improved 4067 security. Specific changes are noted in this change log by their respective 4068 authors. 4069 4070 *Matt Caswell* 4071 4072 * AIX shared library support overhaul. Switch to AIX "natural" way of 4073 handling shared libraries, which means collecting shared objects of 4074 different versions and bitnesses in one common archive. This allows to 4075 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 4076 doesn't affect the way 3rd party applications are linked, only how 4077 multi-version installation is managed. 4078 4079 *Andy Polyakov* 4080 4081 * Make ec_group_do_inverse_ord() more robust and available to other 4082 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 4083 mitigations are applied to the fallback BN_mod_inverse(). 4084 When using this function rather than BN_mod_inverse() directly, new 4085 EC cryptosystem implementations are then safer-by-default. 4086 4087 *Billy Bob Brumley* 4088 4089 * Add coordinate blinding for EC_POINT and implement projective 4090 coordinate blinding for generic prime curves as a countermeasure to 4091 chosen point SCA attacks. 4092 4093 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 4094 4095 * Add blinding to ECDSA and DSA signatures to protect against side channel 4096 attacks discovered by Keegan Ryan (NCC Group). 4097 4098 *Matt Caswell* 4099 4100 * Enforce checking in the `pkeyutl` command to ensure that the input 4101 length does not exceed the maximum supported digest length when performing 4102 a sign, verify or verifyrecover operation. 4103 4104 *Matt Caswell* 4105 4106 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 4107 I/O in combination with something like select() or poll() will hang. This 4108 can be turned off again using SSL_CTX_clear_mode(). 4109 Many applications do not properly handle non-application data records, and 4110 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 4111 around the problems in those applications, but can also break some. 4112 It's recommended to read the manpages about SSL_read(), SSL_write(), 4113 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 4114 SSL_CTX_set_read_ahead() again. 4115 4116 *Kurt Roeckx* 4117 4118 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 4119 now allow empty (zero character) pass phrases. 4120 4121 *Richard Levitte* 4122 4123 * Apply blinding to binary field modular inversion and remove patent 4124 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 4125 4126 *Billy Bob Brumley* 4127 4128 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 4129 binary and prime elliptic curves. 4130 4131 *Billy Bob Brumley* 4132 4133 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 4134 constant time fixed point multiplication. 4135 4136 *Billy Bob Brumley* 4137 4138 * Revise elliptic curve scalar multiplication with timing attack 4139 defenses: ec_wNAF_mul redirects to a constant time implementation 4140 when computing fixed point and variable point multiplication (which 4141 in OpenSSL are mostly used with secret scalars in keygen, sign, 4142 ECDH derive operations). 4143 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 4144 Sohaib ul Hassan* 4145 4146 * Updated CONTRIBUTING 4147 4148 *Rich Salz* 4149 4150 * Updated DRBG / RAND to request nonce and additional low entropy 4151 randomness from the system. 4152 4153 *Matthias St. Pierre* 4154 4155 * Updated 'openssl rehash' to use OpenSSL consistent default. 4156 4157 *Richard Levitte* 4158 4159 * Moved the load of the ssl_conf module to libcrypto, which helps 4160 loading engines that libssl uses before libssl is initialised. 4161 4162 *Matt Caswell* 4163 4164 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 4165 4166 *Matt Caswell* 4167 4168 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 4169 4170 *Ingo Schwarze, Rich Salz* 4171 4172 * Added output of accepting IP address and port for 'openssl s_server' 4173 4174 *Richard Levitte* 4175 4176 * Added a new API for TLSv1.3 ciphersuites: 4177 SSL_CTX_set_ciphersuites() 4178 SSL_set_ciphersuites() 4179 4180 *Matt Caswell* 4181 4182 * Memory allocation failures consistently add an error to the error 4183 stack. 4184 4185 *Rich Salz* 4186 4187 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 4188 in libcrypto when run as setuid/setgid. 4189 4190 *Bernd Edlinger* 4191 4192 * Load any config file by default when libssl is used. 4193 4194 *Matt Caswell* 4195 4196 * Added new public header file <openssl/rand_drbg.h> and documentation 4197 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 4198 4199 *Matthias St. Pierre* 4200 4201 * QNX support removed (cannot find contributors to get their approval 4202 for the license change). 4203 4204 *Rich Salz* 4205 4206 * TLSv1.3 replay protection for early data has been implemented. See the 4207 SSL_read_early_data() man page for further details. 4208 4209 *Matt Caswell* 4210 4211 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 4212 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 4213 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 4214 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 4215 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 4216 configuration has been separated out. See the ciphers man page or the 4217 SSL_CTX_set_ciphersuites() man page for more information. 4218 4219 *Matt Caswell* 4220 4221 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 4222 in responder mode now supports the new "-multi" option, which 4223 spawns the specified number of child processes to handle OCSP 4224 requests. The "-timeout" option now also limits the OCSP 4225 responder's patience to wait to receive the full client request 4226 on a newly accepted connection. Child processes are respawned 4227 as needed, and the CA index file is automatically reloaded 4228 when changed. This makes it possible to run the "ocsp" responder 4229 as a long-running service, making the OpenSSL CA somewhat more 4230 feature-complete. In this mode, most diagnostic messages logged 4231 after entering the event loop are logged via syslog(3) rather than 4232 written to stderr. 4233 4234 *Viktor Dukhovni* 4235 4236 * Added support for X448 and Ed448. Heavily based on original work by 4237 Mike Hamburg. 4238 4239 *Matt Caswell* 4240 4241 * Extend OSSL_STORE with capabilities to search and to narrow the set of 4242 objects loaded. This adds the functions OSSL_STORE_expect() and 4243 OSSL_STORE_find() as well as needed tools to construct searches and 4244 get the search data out of them. 4245 4246 *Richard Levitte* 4247 4248 * Support for TLSv1.3 added. Note that users upgrading from an earlier 4249 version of OpenSSL should review their configuration settings to ensure 4250 that they are still appropriate for TLSv1.3. For further information see: 4251 <https://wiki.openssl.org/index.php/TLS1.3> 4252 4253 *Matt Caswell* 4254 4255 * Grand redesign of the OpenSSL random generator 4256 4257 The default RAND method now utilizes an AES-CTR DRBG according to 4258 NIST standard SP 800-90Ar1. The new random generator is essentially 4259 a port of the default random generator from the OpenSSL FIPS 2.0 4260 object module. It is a hybrid deterministic random bit generator 4261 using an AES-CTR bit stream and which seeds and reseeds itself 4262 automatically using trusted system entropy sources. 4263 4264 Some of its new features are: 4265 - Support for multiple DRBG instances with seed chaining. 4266 - The default RAND method makes use of a DRBG. 4267 - There is a public and private DRBG instance. 4268 - The DRBG instances are fork-safe. 4269 - Keep all global DRBG instances on the secure heap if it is enabled. 4270 - The public and private DRBG instance are per thread for lock free 4271 operation 4272 4273 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 4274 4275 * Changed Configure so it only says what it does and doesn't dump 4276 so much data. Instead, ./configdata.pm should be used as a script 4277 to display all sorts of configuration data. 4278 4279 *Richard Levitte* 4280 4281 * Added processing of "make variables" to Configure. 4282 4283 *Richard Levitte* 4284 4285 * Added SHA512/224 and SHA512/256 algorithm support. 4286 4287 *Paul Dale* 4288 4289 * The last traces of Netware support, first removed in 1.1.0, have 4290 now been removed. 4291 4292 *Rich Salz* 4293 4294 * Get rid of Makefile.shared, and in the process, make the processing 4295 of certain files (rc.obj, or the .def/.map/.opt files produced from 4296 the ordinal files) more visible and hopefully easier to trace and 4297 debug (or make silent). 4298 4299 *Richard Levitte* 4300 4301 * Make it possible to have environment variable assignments as 4302 arguments to config / Configure. 4303 4304 *Richard Levitte* 4305 4306 * Add multi-prime RSA (RFC 8017) support. 4307 4308 *Paul Yang* 4309 4310 * Add SM3 implemented according to GB/T 32905-2016 4311 *Jack Lloyd <jack.lloyd@ribose.com>,* 4312 *Ronald Tse <ronald.tse@ribose.com>,* 4313 *Erick Borsboom <erick.borsboom@ribose.com>* 4314 4315 * Add 'Maximum Fragment Length' TLS extension negotiation and support 4316 as documented in RFC6066. 4317 Based on a patch from Tomasz Moń 4318 4319 *Filipe Raimundo da Silva* 4320 4321 * Add SM4 implemented according to GB/T 32907-2016. 4322 *Jack Lloyd <jack.lloyd@ribose.com>,* 4323 *Ronald Tse <ronald.tse@ribose.com>,* 4324 *Erick Borsboom <erick.borsboom@ribose.com>* 4325 4326 * Reimplement -newreq-nodes and ERR_error_string_n; the 4327 original author does not agree with the license change. 4328 4329 *Rich Salz* 4330 4331 * Add ARIA AEAD TLS support. 4332 4333 *Jon Spillett* 4334 4335 * Some macro definitions to support VS6 have been removed. Visual 4336 Studio 6 has not worked since 1.1.0 4337 4338 *Rich Salz* 4339 4340 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 4341 without clearing the errors. 4342 4343 *Richard Levitte* 4344 4345 * Add "atfork" functions. If building on a system that without 4346 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 4347 requirements. The RAND facility now uses/requires this. 4348 4349 *Rich Salz* 4350 4351 * Add SHA3. 4352 4353 *Andy Polyakov* 4354 4355 * The UI API becomes a permanent and integral part of libcrypto, i.e. 4356 not possible to disable entirely. However, it's still possible to 4357 disable the console reading UI method, UI_OpenSSL() (use UI_null() 4358 as a fallback). 4359 4360 To disable, configure with 'no-ui-console'. 'no-ui' is still 4361 possible to use as an alias. Check at compile time with the 4362 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 4363 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 4364 4365 *Richard Levitte* 4366 4367 * Add a STORE module, which implements a uniform and URI based reader of 4368 stores that can contain keys, certificates, CRLs and numerous other 4369 objects. The main API is loosely based on a few stdio functions, 4370 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 4371 OSSL_STORE_error and OSSL_STORE_close. 4372 The implementation uses backends called "loaders" to implement arbitrary 4373 URI schemes. There is one built in "loader" for the 'file' scheme. 4374 4375 *Richard Levitte* 4376 4377 * Add devcrypto engine. This has been implemented against cryptodev-linux, 4378 then adjusted to work on FreeBSD 8.4 as well. 4379 Enable by configuring with 'enable-devcryptoeng'. This is done by default 4380 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 4381 4382 *Richard Levitte* 4383 4384 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 4385 util/mkerr.pl, which is adapted to allow those prefixes, leading to 4386 error code calls like this: 4387 4388 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 4389 4390 With this change, we claim the namespaces OSSL and OPENSSL in a manner 4391 that can be encoded in C. For the foreseeable future, this will only 4392 affect new modules. 4393 4394 *Richard Levitte and Tim Hudson* 4395 4396 * Removed BSD cryptodev engine. 4397 4398 *Rich Salz* 4399 4400 * Add a build target 'build_all_generated', to build all generated files 4401 and only that. This can be used to prepare everything that requires 4402 things like perl for a system that lacks perl and then move everything 4403 to that system and do the rest of the build there. 4404 4405 *Richard Levitte* 4406 4407 * In the UI interface, make it possible to duplicate the user data. This 4408 can be used by engines that need to retain the data for a longer time 4409 than just the call where this user data is passed. 4410 4411 *Richard Levitte* 4412 4413 * Ignore the '-named_curve auto' value for compatibility of applications 4414 with OpenSSL 1.0.2. 4415 4416 *Tomáš Mráz <tmraz@fedoraproject.org>* 4417 4418 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 4419 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 4420 alerts across multiple records (some of which could be empty). In practice 4421 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 4422 prohibits this altogether and other libraries (BoringSSL, NSS) do not 4423 support this at all. Supporting it adds significant complexity to the 4424 record layer, and its removal is unlikely to cause interoperability 4425 issues. 4426 4427 *Matt Caswell* 4428 4429 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 4430 with Z. These are meant to replace LONG and ZLONG and to be size safe. 4431 The use of LONG and ZLONG is discouraged and scheduled for deprecation 4432 in OpenSSL 1.2.0. 4433 4434 *Richard Levitte* 4435 4436 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 4437 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 4438 4439 *Richard Levitte, Andy Polyakov* 4440 4441 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 4442 does for RSA, etc. 4443 4444 *Richard Levitte* 4445 4446 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 4447 platform rather than 'mingw'. 4448 4449 *Richard Levitte* 4450 4451 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 4452 success if they are asked to add an object which already exists 4453 in the store. This change cascades to other functions which load 4454 certificates and CRLs. 4455 4456 *Paul Dale* 4457 4458 * x86_64 assembly pack: annotate code with DWARF CFI directives to 4459 facilitate stack unwinding even from assembly subroutines. 4460 4461 *Andy Polyakov* 4462 4463 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 4464 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 4465 4466 *Richard Levitte* 4467 4468 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 4469 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 4470 which is the minimum version we support. 4471 4472 *Richard Levitte* 4473 4474 * Certificate time validation (X509_cmp_time) enforces stricter 4475 compliance with RFC 5280. Fractional seconds and timezone offsets 4476 are no longer allowed. 4477 4478 *Emilia Käsper* 4479 4480 * Add support for ARIA 4481 4482 *Paul Dale* 4483 4484 * s_client will now send the Server Name Indication (SNI) extension by 4485 default unless the new "-noservername" option is used. The server name is 4486 based on the host provided to the "-connect" option unless overridden by 4487 using "-servername". 4488 4489 *Matt Caswell* 4490 4491 * Add support for SipHash 4492 4493 *Todd Short* 4494 4495 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 4496 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 4497 prevent issues where no progress is being made and the peer continually 4498 sends unrecognised record types, using up resources processing them. 4499 4500 *Matt Caswell* 4501 4502 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 4503 using the algorithm defined in 4504 <https://www.akkadia.org/drepper/SHA-crypt.txt> 4505 4506 *Richard Levitte* 4507 4508 * Heartbeat support has been removed; the ABI is changed for now. 4509 4510 *Richard Levitte, Rich Salz* 4511 4512 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 4513 4514 *Emilia Käsper* 4515 4516 * The RSA "null" method, which was partially supported to avoid patent 4517 issues, has been replaced to always returns NULL. 4518 4519 *Rich Salz* 4520 4521OpenSSL 1.1.0 4522------------- 4523 4524### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 4525 4526 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 4527 used even when parsing explicit parameters, when loading a encoded key 4528 or calling `EC_GROUP_new_from_ecpkparameters()`/ 4529 `EC_GROUP_new_from_ecparameters()`. 4530 This prevents bypass of security hardening and performance gains, 4531 especially for curves with specialized EC_METHODs. 4532 By default, if a key encoded with explicit parameters is loaded and later 4533 encoded, the output is still encoded with explicit parameters, even if 4534 internally a "named" EC_GROUP is used for computation. 4535 4536 *Nicola Tuveri* 4537 4538 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 4539 this change, EC_GROUP_set_generator would accept order and/or cofactor as 4540 NULL. After this change, only the cofactor parameter can be NULL. It also 4541 does some minimal sanity checks on the passed order. 4542 ([CVE-2019-1547]) 4543 4544 *Billy Bob Brumley* 4545 4546 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 4547 An attack is simple, if the first CMS_recipientInfo is valid but the 4548 second CMS_recipientInfo is chosen ciphertext. If the second 4549 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 4550 encryption key will be replaced by garbage, and the message cannot be 4551 decoded, but if the RSA decryption fails, the correct encryption key is 4552 used and the recipient will not notice the attack. 4553 As a work around for this potential attack the length of the decrypted 4554 key must be equal to the cipher default key length, in case the 4555 certificate is not given and all recipientInfo are tried out. 4556 The old behaviour can be re-enabled in the CMS code by setting the 4557 CMS_DEBUG_DECRYPT flag. 4558 ([CVE-2019-1563]) 4559 4560 *Bernd Edlinger* 4561 4562 * Use Windows installation paths in the mingw builds 4563 4564 Mingw isn't a POSIX environment per se, which means that Windows 4565 paths should be used for installation. 4566 ([CVE-2019-1552]) 4567 4568 *Richard Levitte* 4569 4570### Changes between 1.1.0j and 1.1.0k [28 May 2019] 4571 4572 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 4573 This changes the size when using the `genpkey` command when no size is given. 4574 It fixes an omission in earlier changes that changed all RSA, DSA and DH 4575 generation commands to use 2048 bits by default. 4576 4577 *Kurt Roeckx* 4578 4579 * Prevent over long nonces in ChaCha20-Poly1305. 4580 4581 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 4582 for every encryption operation. RFC 7539 specifies that the nonce value 4583 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 4584 and front pads the nonce with 0 bytes if it is less than 12 4585 bytes. However it also incorrectly allows a nonce to be set of up to 16 4586 bytes. In this case only the last 12 bytes are significant and any 4587 additional leading bytes are ignored. 4588 4589 It is a requirement of using this cipher that nonce values are 4590 unique. Messages encrypted using a reused nonce value are susceptible to 4591 serious confidentiality and integrity attacks. If an application changes 4592 the default nonce length to be longer than 12 bytes and then makes a 4593 change to the leading bytes of the nonce expecting the new value to be a 4594 new unique nonce then such an application could inadvertently encrypt 4595 messages with a reused nonce. 4596 4597 Additionally the ignored bytes in a long nonce are not covered by the 4598 integrity guarantee of this cipher. Any application that relies on the 4599 integrity of these ignored leading bytes of a long nonce may be further 4600 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 4601 is safe because no such use sets such a long nonce value. However user 4602 applications that use this cipher directly and set a non-default nonce 4603 length to be longer than 12 bytes may be vulnerable. 4604 4605 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 4606 Greef of Ronomon. 4607 ([CVE-2019-1543]) 4608 4609 *Matt Caswell* 4610 4611 * Added SCA hardening for modular field inversion in EC_GROUP through 4612 a new dedicated field_inv() pointer in EC_METHOD. 4613 This also addresses a leakage affecting conversions from projective 4614 to affine coordinates. 4615 4616 *Billy Bob Brumley, Nicola Tuveri* 4617 4618 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 4619 reused X509_PUBKEY object if the second PUBKEY is malformed. 4620 4621 *Bernd Edlinger* 4622 4623 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 4624 4625 *Richard Levitte* 4626 4627 * Remove the 'dist' target and add a tarball building script. The 4628 'dist' target has fallen out of use, and it shouldn't be 4629 necessary to configure just to create a source distribution. 4630 4631 *Richard Levitte* 4632 4633### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 4634 4635 * Timing vulnerability in DSA signature generation 4636 4637 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 4638 timing side channel attack. An attacker could use variations in the signing 4639 algorithm to recover the private key. 4640 4641 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 4642 ([CVE-2018-0734]) 4643 4644 *Paul Dale* 4645 4646 * Timing vulnerability in ECDSA signature generation 4647 4648 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 4649 timing side channel attack. An attacker could use variations in the signing 4650 algorithm to recover the private key. 4651 4652 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 4653 ([CVE-2018-0735]) 4654 4655 *Paul Dale* 4656 4657 * Add coordinate blinding for EC_POINT and implement projective 4658 coordinate blinding for generic prime curves as a countermeasure to 4659 chosen point SCA attacks. 4660 4661 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 4662 4663### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 4664 4665 * Client DoS due to large DH parameter 4666 4667 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 4668 malicious server can send a very large prime value to the client. This will 4669 cause the client to spend an unreasonably long period of time generating a 4670 key for this prime resulting in a hang until the client has finished. This 4671 could be exploited in a Denial Of Service attack. 4672 4673 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 4674 ([CVE-2018-0732]) 4675 4676 *Guido Vranken* 4677 4678 * Cache timing vulnerability in RSA Key Generation 4679 4680 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 4681 a cache timing side channel attack. An attacker with sufficient access to 4682 mount cache timing attacks during the RSA key generation process could 4683 recover the private key. 4684 4685 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 4686 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 4687 ([CVE-2018-0737]) 4688 4689 *Billy Brumley* 4690 4691 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 4692 parameter is no longer accepted, as it leads to a corrupt table. NULL 4693 pem_str is reserved for alias entries only. 4694 4695 *Richard Levitte* 4696 4697 * Revert blinding in ECDSA sign and instead make problematic addition 4698 length-invariant. Switch even to fixed-length Montgomery multiplication. 4699 4700 *Andy Polyakov* 4701 4702 * Change generating and checking of primes so that the error rate of not 4703 being prime depends on the intended use based on the size of the input. 4704 For larger primes this will result in more rounds of Miller-Rabin. 4705 The maximal error rate for primes with more than 1080 bits is lowered 4706 to 2^-128. 4707 4708 *Kurt Roeckx, Annie Yousar* 4709 4710 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 4711 4712 *Kurt Roeckx* 4713 4714 * Add blinding to ECDSA and DSA signatures to protect against side channel 4715 attacks discovered by Keegan Ryan (NCC Group). 4716 4717 *Matt Caswell* 4718 4719 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 4720 now allow empty (zero character) pass phrases. 4721 4722 *Richard Levitte* 4723 4724 * Certificate time validation (X509_cmp_time) enforces stricter 4725 compliance with RFC 5280. Fractional seconds and timezone offsets 4726 are no longer allowed. 4727 4728 *Emilia Käsper* 4729 4730 * Fixed a text canonicalisation bug in CMS 4731 4732 Where a CMS detached signature is used with text content the text goes 4733 through a canonicalisation process first prior to signing or verifying a 4734 signature. This process strips trailing space at the end of lines, converts 4735 line terminators to CRLF and removes additional trailing line terminators 4736 at the end of a file. A bug in the canonicalisation process meant that 4737 some characters, such as form-feed, were incorrectly treated as whitespace 4738 and removed. This is contrary to the specification (RFC5485). This fix 4739 could mean that detached text data signed with an earlier version of 4740 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 4741 signed with a fixed OpenSSL may fail to verify with an earlier version of 4742 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 4743 and use the "-binary" flag (for the "cms" command line application) or set 4744 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 4745 4746 *Matt Caswell* 4747 4748### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 4749 4750 * Constructed ASN.1 types with a recursive definition could exceed the stack 4751 4752 Constructed ASN.1 types with a recursive definition (such as can be found 4753 in PKCS7) could eventually exceed the stack given malicious input with 4754 excessive recursion. This could result in a Denial Of Service attack. There 4755 are no such structures used within SSL/TLS that come from untrusted sources 4756 so this is considered safe. 4757 4758 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 4759 project. 4760 ([CVE-2018-0739]) 4761 4762 *Matt Caswell* 4763 4764 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 4765 4766 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 4767 effectively reduced to only comparing the least significant bit of each 4768 byte. This allows an attacker to forge messages that would be considered as 4769 authenticated in an amount of tries lower than that guaranteed by the 4770 security claims of the scheme. The module can only be compiled by the 4771 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 4772 4773 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 4774 (IBM). 4775 ([CVE-2018-0733]) 4776 4777 *Andy Polyakov* 4778 4779 * Add a build target 'build_all_generated', to build all generated files 4780 and only that. This can be used to prepare everything that requires 4781 things like perl for a system that lacks perl and then move everything 4782 to that system and do the rest of the build there. 4783 4784 *Richard Levitte* 4785 4786 * Backport SSL_OP_NO_RENGOTIATION 4787 4788 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 4789 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 4790 changes this is no longer possible in 1.1.0. Therefore, the new 4791 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 4792 1.1.0 to provide equivalent functionality. 4793 4794 Note that if an application built against 1.1.0h headers (or above) is run 4795 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 4796 accepted but nothing will happen, i.e. renegotiation will not be prevented. 4797 4798 *Matt Caswell* 4799 4800 * Removed the OS390-Unix config target. It relied on a script that doesn't 4801 exist. 4802 4803 *Rich Salz* 4804 4805 * rsaz_1024_mul_avx2 overflow bug on x86_64 4806 4807 There is an overflow bug in the AVX2 Montgomery multiplication procedure 4808 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 4809 Analysis suggests that attacks against RSA and DSA as a result of this 4810 defect would be very difficult to perform and are not believed likely. 4811 Attacks against DH1024 are considered just feasible, because most of the 4812 work necessary to deduce information about a private key may be performed 4813 offline. The amount of resources required for such an attack would be 4814 significant. However, for an attack on TLS to be meaningful, the server 4815 would have to share the DH1024 private key among multiple clients, which is 4816 no longer an option since CVE-2016-0701. 4817 4818 This only affects processors that support the AVX2 but not ADX extensions 4819 like Intel Haswell (4th generation). 4820 4821 This issue was reported to OpenSSL by David Benjamin (Google). The issue 4822 was originally found via the OSS-Fuzz project. 4823 ([CVE-2017-3738]) 4824 4825 *Andy Polyakov* 4826 4827### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 4828 4829 * bn_sqrx8x_internal carry bug on x86_64 4830 4831 There is a carry propagating bug in the x86_64 Montgomery squaring 4832 procedure. No EC algorithms are affected. Analysis suggests that attacks 4833 against RSA and DSA as a result of this defect would be very difficult to 4834 perform and are not believed likely. Attacks against DH are considered just 4835 feasible (although very difficult) because most of the work necessary to 4836 deduce information about a private key may be performed offline. The amount 4837 of resources required for such an attack would be very significant and 4838 likely only accessible to a limited number of attackers. An attacker would 4839 additionally need online access to an unpatched system using the target 4840 private key in a scenario with persistent DH parameters and a private 4841 key that is shared between multiple clients. 4842 4843 This only affects processors that support the BMI1, BMI2 and ADX extensions 4844 like Intel Broadwell (5th generation) and later or AMD Ryzen. 4845 4846 This issue was reported to OpenSSL by the OSS-Fuzz project. 4847 ([CVE-2017-3736]) 4848 4849 *Andy Polyakov* 4850 4851 * Malformed X.509 IPAddressFamily could cause OOB read 4852 4853 If an X.509 certificate has a malformed IPAddressFamily extension, 4854 OpenSSL could do a one-byte buffer overread. The most likely result 4855 would be an erroneous display of the certificate in text format. 4856 4857 This issue was reported to OpenSSL by the OSS-Fuzz project. 4858 ([CVE-2017-3735]) 4859 4860 *Rich Salz* 4861 4862### Changes between 1.1.0e and 1.1.0f [25 May 2017] 4863 4864 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 4865 platform rather than 'mingw'. 4866 4867 *Richard Levitte* 4868 4869 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 4870 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 4871 which is the minimum version we support. 4872 4873 *Richard Levitte* 4874 4875### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 4876 4877 * Encrypt-Then-Mac renegotiation crash 4878 4879 During a renegotiation handshake if the Encrypt-Then-Mac extension is 4880 negotiated where it was not in the original handshake (or vice-versa) then 4881 this can cause OpenSSL to crash (dependent on ciphersuite). Both clients 4882 and servers are affected. 4883 4884 This issue was reported to OpenSSL by Joe Orton (Red Hat). 4885 ([CVE-2017-3733]) 4886 4887 *Matt Caswell* 4888 4889### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 4890 4891 * Truncated packet could crash via OOB read 4892 4893 If one side of an SSL/TLS path is running on a 32-bit host and a specific 4894 cipher is being used, then a truncated packet can cause that host to 4895 perform an out-of-bounds read, usually resulting in a crash. 4896 4897 This issue was reported to OpenSSL by Robert Święcki of Google. 4898 ([CVE-2017-3731]) 4899 4900 *Andy Polyakov* 4901 4902 * Bad (EC)DHE parameters cause a client crash 4903 4904 If a malicious server supplies bad parameters for a DHE or ECDHE key 4905 exchange then this can result in the client attempting to dereference a 4906 NULL pointer leading to a client crash. This could be exploited in a Denial 4907 of Service attack. 4908 4909 This issue was reported to OpenSSL by Guido Vranken. 4910 ([CVE-2017-3730]) 4911 4912 *Matt Caswell* 4913 4914 * BN_mod_exp may produce incorrect results on x86_64 4915 4916 There is a carry propagating bug in the x86_64 Montgomery squaring 4917 procedure. No EC algorithms are affected. Analysis suggests that attacks 4918 against RSA and DSA as a result of this defect would be very difficult to 4919 perform and are not believed likely. Attacks against DH are considered just 4920 feasible (although very difficult) because most of the work necessary to 4921 deduce information about a private key may be performed offline. The amount 4922 of resources required for such an attack would be very significant and 4923 likely only accessible to a limited number of attackers. An attacker would 4924 additionally need online access to an unpatched system using the target 4925 private key in a scenario with persistent DH parameters and a private 4926 key that is shared between multiple clients. For example this can occur by 4927 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 4928 similar to CVE-2015-3193 but must be treated as a separate problem. 4929 4930 This issue was reported to OpenSSL by the OSS-Fuzz project. 4931 ([CVE-2017-3732]) 4932 4933 *Andy Polyakov* 4934 4935### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 4936 4937 * ChaCha20/Poly1305 heap-buffer-overflow 4938 4939 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 4940 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 4941 crash. This issue is not considered to be exploitable beyond a DoS. 4942 4943 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 4944 ([CVE-2016-7054]) 4945 4946 *Richard Levitte* 4947 4948 * CMS Null dereference 4949 4950 Applications parsing invalid CMS structures can crash with a NULL pointer 4951 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 4952 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 4953 structure callback if an attempt is made to free certain invalid encodings. 4954 Only CHOICE structures using a callback which do not handle NULL value are 4955 affected. 4956 4957 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 4958 ([CVE-2016-7053]) 4959 4960 *Stephen Henson* 4961 4962 * Montgomery multiplication may produce incorrect results 4963 4964 There is a carry propagating bug in the Broadwell-specific Montgomery 4965 multiplication procedure that handles input lengths divisible by, but 4966 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 4967 and DH private keys are impossible. This is because the subroutine in 4968 question is not used in operations with the private key itself and an input 4969 of the attacker's direct choice. Otherwise the bug can manifest itself as 4970 transient authentication and key negotiation failures or reproducible 4971 erroneous outcome of public-key operations with specially crafted input. 4972 Among EC algorithms only Brainpool P-512 curves are affected and one 4973 presumably can attack ECDH key negotiation. Impact was not analyzed in 4974 detail, because pre-requisites for attack are considered unlikely. Namely 4975 multiple clients have to choose the curve in question and the server has to 4976 share the private key among them, neither of which is default behaviour. 4977 Even then only clients that chose the curve will be affected. 4978 4979 This issue was publicly reported as transient failures and was not 4980 initially recognized as a security issue. Thanks to Richard Morgan for 4981 providing reproducible case. 4982 ([CVE-2016-7055]) 4983 4984 *Andy Polyakov* 4985 4986 * Removed automatic addition of RPATH in shared libraries and executables, 4987 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 4988 4989 *Richard Levitte* 4990 4991### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 4992 4993 * Fix Use After Free for large message sizes 4994 4995 The patch applied to address CVE-2016-6307 resulted in an issue where if a 4996 message larger than approx 16k is received then the underlying buffer to 4997 store the incoming message is reallocated and moved. Unfortunately a 4998 dangling pointer to the old location is left which results in an attempt to 4999 write to the previously freed location. This is likely to result in a 5000 crash, however it could potentially lead to execution of arbitrary code. 5001 5002 This issue only affects OpenSSL 1.1.0a. 5003 5004 This issue was reported to OpenSSL by Robert Święcki. 5005 ([CVE-2016-6309]) 5006 5007 *Matt Caswell* 5008 5009### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 5010 5011 * OCSP Status Request extension unbounded memory growth 5012 5013 A malicious client can send an excessively large OCSP Status Request 5014 extension. If that client continually requests renegotiation, sending a 5015 large OCSP Status Request extension each time, then there will be unbounded 5016 memory growth on the server. This will eventually lead to a Denial Of 5017 Service attack through memory exhaustion. Servers with a default 5018 configuration are vulnerable even if they do not support OCSP. Builds using 5019 the "no-ocsp" build time option are not affected. 5020 5021 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5022 ([CVE-2016-6304]) 5023 5024 *Matt Caswell* 5025 5026 * SSL_peek() hang on empty record 5027 5028 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 5029 sends an empty record. This could be exploited by a malicious peer in a 5030 Denial Of Service attack. 5031 5032 This issue was reported to OpenSSL by Alex Gaynor. 5033 ([CVE-2016-6305]) 5034 5035 *Matt Caswell* 5036 5037 * Excessive allocation of memory in tls_get_message_header() and 5038 dtls1_preprocess_fragment() 5039 5040 A (D)TLS message includes 3 bytes for its length in the header for the 5041 message. This would allow for messages up to 16Mb in length. Messages of 5042 this length are excessive and OpenSSL includes a check to ensure that a 5043 peer is sending reasonably sized messages in order to avoid too much memory 5044 being consumed to service a connection. A flaw in the logic of version 5045 1.1.0 means that memory for the message is allocated too early, prior to 5046 the excessive message length check. Due to way memory is allocated in 5047 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 5048 to service a connection. This could lead to a Denial of Service through 5049 memory exhaustion. However, the excessive message length check still takes 5050 place, and this would cause the connection to immediately fail. Assuming 5051 that the application calls SSL_free() on the failed connection in a timely 5052 manner then the 21Mb of allocated memory will then be immediately freed 5053 again. Therefore, the excessive memory allocation will be transitory in 5054 nature. This then means that there is only a security impact if: 5055 5056 1) The application does not call SSL_free() in a timely manner in the event 5057 that the connection fails 5058 or 5059 2) The application is working in a constrained environment where there is 5060 very little free memory 5061 or 5062 3) The attacker initiates multiple connection attempts such that there are 5063 multiple connections in a state where memory has been allocated for the 5064 connection; SSL_free() has not yet been called; and there is insufficient 5065 memory to service the multiple requests. 5066 5067 Except in the instance of (1) above any Denial Of Service is likely to be 5068 transitory because as soon as the connection fails the memory is 5069 subsequently freed again in the SSL_free() call. However there is an 5070 increased risk during this period of application crashes due to the lack of 5071 memory - which would then mean a more serious Denial of Service. 5072 5073 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5074 (CVE-2016-6307 and CVE-2016-6308) 5075 5076 *Matt Caswell* 5077 5078 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 5079 had to be removed. Primary reason is that vendor assembler can't 5080 assemble our modules with -KPIC flag. As result it, assembly 5081 support, was not even available as option. But its lack means 5082 lack of side-channel resistant code, which is incompatible with 5083 security by todays standards. Fortunately gcc is readily available 5084 prepackaged option, which we firmly point at... 5085 5086 *Andy Polyakov* 5087 5088### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 5089 5090 * Windows command-line tool supports UTF-8 opt-in option for arguments 5091 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 5092 (to any value) allows Windows user to access PKCS#12 file generated 5093 with Windows CryptoAPI and protected with non-ASCII password, as well 5094 as files generated under UTF-8 locale on Linux also protected with 5095 non-ASCII password. 5096 5097 *Andy Polyakov* 5098 5099 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 5100 have been disabled by default and removed from DEFAULT, just like RC4. 5101 See the RC4 item below to re-enable both. 5102 5103 *Rich Salz* 5104 5105 * The method for finding the storage location for the Windows RAND seed file 5106 has changed. First we check %RANDFILE%. If that is not set then we check 5107 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 5108 all else fails we fall back to C:\. 5109 5110 *Matt Caswell* 5111 5112 * The EVP_EncryptUpdate() function has had its return type changed from void 5113 to int. A return of 0 indicates and error while a return of 1 indicates 5114 success. 5115 5116 *Matt Caswell* 5117 5118 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 5119 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 5120 off the constant time implementation for RSA, DSA and DH have been made 5121 no-ops and deprecated. 5122 5123 *Matt Caswell* 5124 5125 * Windows RAND implementation was simplified to only get entropy by 5126 calling CryptGenRandom(). Various other RAND-related tickets 5127 were also closed. 5128 5129 *Joseph Wylie Yandle, Rich Salz* 5130 5131 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 5132 and `OPENSSL_LH_`, respectively. The old names are available 5133 with API compatibility. They new names are now completely documented. 5134 5135 *Rich Salz* 5136 5137 * Unify TYPE_up_ref(obj) methods signature. 5138 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 5139 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 5140 int (instead of void) like all others TYPE_up_ref() methods. 5141 So now these methods also check the return value of CRYPTO_atomic_add(), 5142 and the validity of object reference counter. 5143 5144 *fdasilvayy@gmail.com* 5145 5146 * With Windows Visual Studio builds, the .pdb files are installed 5147 alongside the installed libraries and executables. For a static 5148 library installation, ossl_static.pdb is the associate compiler 5149 generated .pdb file to be used when linking programs. 5150 5151 *Richard Levitte* 5152 5153 * Remove openssl.spec. Packaging files belong with the packagers. 5154 5155 *Richard Levitte* 5156 5157 * Automatic Darwin/OSX configuration has had a refresh, it will now 5158 recognise x86_64 architectures automatically. You can still decide 5159 to build for a different bitness with the environment variable 5160 KERNEL_BITS (can be 32 or 64), for example: 5161 5162 KERNEL_BITS=32 ./config 5163 5164 *Richard Levitte* 5165 5166 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 5167 256 bit AES and HMAC with SHA256. 5168 5169 *Steve Henson* 5170 5171 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 5172 5173 *Andy Polyakov* 5174 5175 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 5176 5177 *Rich Salz* 5178 5179 * To enable users to have their own config files and build file templates, 5180 Configure looks in the directory indicated by the environment variable 5181 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 5182 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 5183 name and is used as is. 5184 5185 *Richard Levitte* 5186 5187 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 5188 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 5189 X509_CERT_FILE_CTX was removed. 5190 5191 *Rich Salz* 5192 5193 * "shared" builds are now the default. To create only static libraries use 5194 the "no-shared" Configure option. 5195 5196 *Matt Caswell* 5197 5198 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 5199 All of these option have not worked for some while and are fundamental 5200 algorithms. 5201 5202 *Matt Caswell* 5203 5204 * Make various cleanup routines no-ops and mark them as deprecated. Most 5205 global cleanup functions are no longer required because they are handled 5206 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 5207 Explicitly de-initing can cause problems (e.g. where a library that uses 5208 OpenSSL de-inits, but an application is still using it). The affected 5209 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 5210 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 5211 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 5212 COMP_zlib_cleanup(). 5213 5214 *Matt Caswell* 5215 5216 * --strict-warnings no longer enables runtime debugging options 5217 such as REF_DEBUG. Instead, debug options are automatically 5218 enabled with '--debug' builds. 5219 5220 *Andy Polyakov, Emilia Käsper* 5221 5222 * Made DH and DH_METHOD opaque. The structures for managing DH objects 5223 have been moved out of the public header files. New functions for managing 5224 these have been added. 5225 5226 *Matt Caswell* 5227 5228 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 5229 objects have been moved out of the public header files. New 5230 functions for managing these have been added. 5231 5232 *Richard Levitte* 5233 5234 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 5235 have been moved out of the public header files. New functions for managing 5236 these have been added. 5237 5238 *Matt Caswell* 5239 5240 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 5241 moved out of the public header files. New functions for managing these 5242 have been added. 5243 5244 *Matt Caswell* 5245 5246 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 5247 5248 *Matt Caswell* 5249 5250 * Removed the mk1mf build scripts. 5251 5252 *Richard Levitte* 5253 5254 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 5255 it is always safe to #include a header now. 5256 5257 *Rich Salz* 5258 5259 * Removed the aged BC-32 config and all its supporting scripts 5260 5261 *Richard Levitte* 5262 5263 * Removed support for Ultrix, Netware, and OS/2. 5264 5265 *Rich Salz* 5266 5267 * Add support for HKDF. 5268 5269 *Alessandro Ghedini* 5270 5271 * Add support for blake2b and blake2s 5272 5273 *Bill Cox* 5274 5275 * Added support for "pipelining". Ciphers that have the 5276 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 5277 encryptions/decryptions simultaneously. There are currently no built-in 5278 ciphers with this property but the expectation is that engines will be able 5279 to offer it to significantly improve throughput. Support has been extended 5280 into libssl so that multiple records for a single connection can be 5281 processed in one go (for >=TLS 1.1). 5282 5283 *Matt Caswell* 5284 5285 * Added the AFALG engine. This is an async capable engine which is able to 5286 offload work to the Linux kernel. In this initial version it only supports 5287 AES128-CBC. The kernel must be version 4.1.0 or greater. 5288 5289 *Catriona Lucey* 5290 5291 * OpenSSL now uses a new threading API. It is no longer necessary to 5292 set locking callbacks to use OpenSSL in a multi-threaded environment. There 5293 are two supported threading models: pthreads and windows threads. It is 5294 also possible to configure OpenSSL at compile time for "no-threads". The 5295 old threading API should no longer be used. The functions have been 5296 replaced with "no-op" compatibility macros. 5297 5298 *Alessandro Ghedini, Matt Caswell* 5299 5300 * Modify behavior of ALPN to invoke callback after SNI/servername 5301 callback, such that updates to the SSL_CTX affect ALPN. 5302 5303 *Todd Short* 5304 5305 * Add SSL_CIPHER queries for authentication and key-exchange. 5306 5307 *Todd Short* 5308 5309 * Changes to the DEFAULT cipherlist: 5310 - Prefer (EC)DHE handshakes over plain RSA. 5311 - Prefer AEAD ciphers over legacy ciphers. 5312 - Prefer ECDSA over RSA when both certificates are available. 5313 - Prefer TLSv1.2 ciphers/PRF. 5314 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 5315 default cipherlist. 5316 5317 *Emilia Käsper* 5318 5319 * Change the ECC default curve list to be this, in order: x25519, 5320 secp256r1, secp521r1, secp384r1. 5321 5322 *Rich Salz* 5323 5324 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 5325 disabled by default. They can be re-enabled using the 5326 enable-weak-ssl-ciphers option to Configure. 5327 5328 *Matt Caswell* 5329 5330 * If the server has ALPN configured, but supports no protocols that the 5331 client advertises, send a fatal "no_application_protocol" alert. 5332 This behaviour is SHALL in RFC 7301, though it isn't universally 5333 implemented by other servers. 5334 5335 *Emilia Käsper* 5336 5337 * Add X25519 support. 5338 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 5339 for public and private key encoding using the format documented in 5340 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 5341 key generation and key derivation. 5342 5343 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 5344 X25519(29). 5345 5346 *Steve Henson* 5347 5348 * Deprecate SRP_VBASE_get_by_user. 5349 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 5350 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 5351 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 5352 seed, even if the seed is configured. 5353 5354 Users should use SRP_VBASE_get1_by_user instead. Note that in 5355 SRP_VBASE_get1_by_user, caller must free the returned value. Note 5356 also that even though configuring the SRP seed attempts to hide 5357 invalid usernames by continuing the handshake with fake 5358 credentials, this behaviour is not constant time and no strong 5359 guarantees are made that the handshake is indistinguishable from 5360 that of a valid user. 5361 5362 *Emilia Käsper* 5363 5364 * Configuration change; it's now possible to build dynamic engines 5365 without having to build shared libraries and vice versa. This 5366 only applies to the engines in `engines/`, those in `crypto/engine/` 5367 will always be built into libcrypto (i.e. "static"). 5368 5369 Building dynamic engines is enabled by default; to disable, use 5370 the configuration option "disable-dynamic-engine". 5371 5372 The only requirements for building dynamic engines are the 5373 presence of the DSO module and building with position independent 5374 code, so they will also automatically be disabled if configuring 5375 with "disable-dso" or "disable-pic". 5376 5377 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 5378 are also taken away from openssl/opensslconf.h, as they are 5379 irrelevant. 5380 5381 *Richard Levitte* 5382 5383 * Configuration change; if there is a known flag to compile 5384 position independent code, it will always be applied on the 5385 libcrypto and libssl object files, and never on the application 5386 object files. This means other libraries that use routines from 5387 libcrypto / libssl can be made into shared libraries regardless 5388 of how OpenSSL was configured. 5389 5390 If this isn't desirable, the configuration options "disable-pic" 5391 or "no-pic" can be used to disable the use of PIC. This will 5392 also disable building shared libraries and dynamic engines. 5393 5394 *Richard Levitte* 5395 5396 * Removed JPAKE code. It was experimental and has no wide use. 5397 5398 *Rich Salz* 5399 5400 * The INSTALL_PREFIX Makefile variable has been renamed to 5401 DESTDIR. That makes for less confusion on what this variable 5402 is for. Also, the configuration option --install_prefix is 5403 removed. 5404 5405 *Richard Levitte* 5406 5407 * Heartbeat for TLS has been removed and is disabled by default 5408 for DTLS; configure with enable-heartbeats. Code that uses the 5409 old #define's might need to be updated. 5410 5411 *Emilia Käsper, Rich Salz* 5412 5413 * Rename REF_CHECK to REF_DEBUG. 5414 5415 *Rich Salz* 5416 5417 * New "unified" build system 5418 5419 The "unified" build system is aimed to be a common system for all 5420 platforms we support. With it comes new support for VMS. 5421 5422 This system builds supports building in a different directory tree 5423 than the source tree. It produces one Makefile (for unix family 5424 or lookalikes), or one descrip.mms (for VMS). 5425 5426 The source of information to make the Makefile / descrip.mms is 5427 small files called 'build.info', holding the necessary 5428 information for each directory with source to compile, and a 5429 template in Configurations, like unix-Makefile.tmpl or 5430 descrip.mms.tmpl. 5431 5432 With this change, the library names were also renamed on Windows 5433 and on VMS. They now have names that are closer to the standard 5434 on Unix, and include the major version number, and in certain 5435 cases, the architecture they are built for. See "Notes on shared 5436 libraries" in INSTALL. 5437 5438 We rely heavily on the perl module Text::Template. 5439 5440 *Richard Levitte* 5441 5442 * Added support for auto-initialisation and de-initialisation of the library. 5443 OpenSSL no longer requires explicit init or deinit routines to be called, 5444 except in certain circumstances. See the OPENSSL_init_crypto() and 5445 OPENSSL_init_ssl() man pages for further information. 5446 5447 *Matt Caswell* 5448 5449 * The arguments to the DTLSv1_listen function have changed. Specifically the 5450 "peer" argument is now expected to be a BIO_ADDR object. 5451 5452 * Rewrite of BIO networking library. The BIO library lacked consistent 5453 support of IPv6, and adding it required some more extensive 5454 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 5455 which hold all types of addresses and chains of address information. 5456 It also introduces a new API, with functions like BIO_socket, 5457 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 5458 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 5459 have been adapted accordingly. 5460 5461 *Richard Levitte* 5462 5463 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 5464 the leading 0-byte. 5465 5466 *Emilia Käsper* 5467 5468 * CRIME protection: disable compression by default, even if OpenSSL is 5469 compiled with zlib enabled. Applications can still enable compression 5470 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 5471 using the SSL_CONF library to configure compression. 5472 5473 *Emilia Käsper* 5474 5475 * The signature of the session callback configured with 5476 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 5477 was explicitly marked as `const unsigned char*` instead of 5478 `unsigned char*`. 5479 5480 *Emilia Käsper* 5481 5482 * Always DPURIFY. Remove the use of uninitialized memory in the 5483 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 5484 5485 *Emilia Käsper* 5486 5487 * Removed many obsolete configuration items, including 5488 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 5489 MD2_CHAR, MD2_INT, MD2_LONG 5490 BF_PTR, BF_PTR2 5491 IDEA_SHORT, IDEA_LONG 5492 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 5493 5494 *Rich Salz, with advice from Andy Polyakov* 5495 5496 * Many BN internals have been moved to an internal header file. 5497 5498 *Rich Salz with help from Andy Polyakov* 5499 5500 * Configuration and writing out the results from it has changed. 5501 Files such as Makefile include/openssl/opensslconf.h and are now 5502 produced through general templates, such as Makefile.in and 5503 crypto/opensslconf.h.in and some help from the perl module 5504 Text::Template. 5505 5506 Also, the center of configuration information is no longer 5507 Makefile. Instead, Configure produces a perl module in 5508 configdata.pm which holds most of the config data (in the hash 5509 table %config), the target data that comes from the target 5510 configuration in one of the `Configurations/*.conf` files (in 5511 %target). 5512 5513 *Richard Levitte* 5514 5515 * To clarify their intended purposes, the Configure options 5516 --prefix and --openssldir change their semantics, and become more 5517 straightforward and less interdependent. 5518 5519 --prefix shall be used exclusively to give the location INSTALLTOP 5520 where programs, scripts, libraries, include files and manuals are 5521 going to be installed. The default is now /usr/local. 5522 5523 --openssldir shall be used exclusively to give the default 5524 location OPENSSLDIR where certificates, private keys, CRLs are 5525 managed. This is also where the default openssl.cnf gets 5526 installed. 5527 If the directory given with this option is a relative path, the 5528 values of both the --prefix value and the --openssldir value will 5529 be combined to become OPENSSLDIR. 5530 The default for --openssldir is INSTALLTOP/ssl. 5531 5532 Anyone who uses --openssldir to specify where OpenSSL is to be 5533 installed MUST change to use --prefix instead. 5534 5535 *Richard Levitte* 5536 5537 * The GOST engine was out of date and therefore it has been removed. An up 5538 to date GOST engine is now being maintained in an external repository. 5539 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 5540 support for GOST ciphersuites (these are only activated if a GOST engine 5541 is present). 5542 5543 *Matt Caswell* 5544 5545 * EGD is no longer supported by default; use enable-egd when 5546 configuring. 5547 5548 *Ben Kaduk and Rich Salz* 5549 5550 * The distribution now has Makefile.in files, which are used to 5551 create Makefile's when Configure is run. *Configure must be run 5552 before trying to build now.* 5553 5554 *Rich Salz* 5555 5556 * The return value for SSL_CIPHER_description() for error conditions 5557 has changed. 5558 5559 *Rich Salz* 5560 5561 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 5562 5563 Obtaining and performing DNSSEC validation of TLSA records is 5564 the application's responsibility. The application provides 5565 the TLSA records of its choice to OpenSSL, and these are then 5566 used to authenticate the peer. 5567 5568 The TLSA records need not even come from DNS. They can, for 5569 example, be used to implement local end-entity certificate or 5570 trust-anchor "pinning", where the "pin" data takes the form 5571 of TLSA records, which can augment or replace verification 5572 based on the usual WebPKI public certification authorities. 5573 5574 *Viktor Dukhovni* 5575 5576 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 5577 continues to support deprecated interfaces in default builds. 5578 However, applications are strongly advised to compile their 5579 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 5580 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 5581 or the 1.1.0 releases. 5582 5583 In environments in which all applications have been ported to 5584 not use any deprecated interfaces OpenSSL's Configure script 5585 should be used with the --api=1.1.0 option to entirely remove 5586 support for the deprecated features from the library and 5587 unconditionally disable them in the installed headers. 5588 Essentially the same effect can be achieved with the "no-deprecated" 5589 argument to Configure, except that this will always restrict 5590 the build to just the latest API, rather than a fixed API 5591 version. 5592 5593 As applications are ported to future revisions of the API, 5594 they should update their compile-time OPENSSL_API_COMPAT define 5595 accordingly, but in most cases should be able to continue to 5596 compile with later releases. 5597 5598 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 5599 0x10000000L and 0x00908000L, respectively. However those 5600 versions did not support the OPENSSL_API_COMPAT feature, and 5601 so applications are not typically tested for explicit support 5602 of just the undeprecated features of either release. 5603 5604 *Viktor Dukhovni* 5605 5606 * Add support for setting the minimum and maximum supported protocol. 5607 It can bet set via the SSL_set_min_proto_version() and 5608 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 5609 MaxProtocol. It's recommended to use the new APIs to disable 5610 protocols instead of disabling individual protocols using 5611 SSL_set_options() or SSL_CONF's Protocol. This change also 5612 removes support for disabling TLS 1.2 in the OpenSSL TLS 5613 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 5614 5615 *Kurt Roeckx* 5616 5617 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 5618 5619 *Andy Polyakov* 5620 5621 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 5622 and integrates ECDSA and ECDH functionality into EC. Implementations can 5623 now redirect key generation and no longer need to convert to or from 5624 ECDSA_SIG format. 5625 5626 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 5627 include the ec.h header file instead. 5628 5629 *Steve Henson* 5630 5631 * Remove support for all 40 and 56 bit ciphers. This includes all the export 5632 ciphers who are no longer supported and drops support the ephemeral RSA key 5633 exchange. The LOW ciphers currently doesn't have any ciphers in it. 5634 5635 *Kurt Roeckx* 5636 5637 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 5638 opaque. For HMAC_CTX, the following constructors and destructors 5639 were added: 5640 5641 HMAC_CTX *HMAC_CTX_new(void); 5642 void HMAC_CTX_free(HMAC_CTX *ctx); 5643 5644 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 5645 destroy such methods has been added. See EVP_MD_meth_new(3) and 5646 EVP_CIPHER_meth_new(3) for documentation. 5647 5648 Additional changes: 5649 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 5650 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 5651 `EVP_MD_CTX_reset()` should be called instead to reinitialise 5652 an already created structure. 5653 2) For consistency with the majority of our object creators and 5654 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 5655 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 5656 for deprecated builds. 5657 5658 *Richard Levitte* 5659 5660 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 5661 cryptographic operations to be performed asynchronously as long as an 5662 asynchronous capable engine is used. See the ASYNC_start_job() man page for 5663 further details. Libssl has also had this capability integrated with the 5664 introduction of the new mode SSL_MODE_ASYNC and associated error 5665 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 5666 pages. This work was developed in partnership with Intel Corp. 5667 5668 *Matt Caswell* 5669 5670 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 5671 always enabled now. If you want to disable the support you should 5672 exclude it using the list of supported ciphers. This also means that the 5673 "-no_ecdhe" option has been removed from s_server. 5674 5675 *Kurt Roeckx* 5676 5677 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 5678 SSL_{CTX_}set1_curves() which can set a list. 5679 5680 *Kurt Roeckx* 5681 5682 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 5683 curve you want to support using SSL_{CTX_}set1_curves(). 5684 5685 *Kurt Roeckx* 5686 5687 * State machine rewrite. The state machine code has been significantly 5688 refactored in order to remove much duplication of code and solve issues 5689 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 5690 further details). This change does have some associated API changes. 5691 Notably the SSL_state() function has been removed and replaced by 5692 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 5693 SSL_set_state() has been removed altogether. The previous handshake states 5694 defined in ssl.h and ssl3.h have also been removed. 5695 5696 *Matt Caswell* 5697 5698 * All instances of the string "ssleay" in the public API were replaced 5699 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 5700 Some error codes related to internal RSA_eay API's were renamed. 5701 5702 *Rich Salz* 5703 5704 * The demo files in crypto/threads were moved to demo/threads. 5705 5706 *Rich Salz* 5707 5708 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 5709 sureware and ubsec. 5710 5711 *Matt Caswell, Rich Salz* 5712 5713 * New ASN.1 embed macro. 5714 5715 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 5716 structure is not allocated: it is part of the parent. That is instead of 5717 5718 FOO *x; 5719 5720 it must be: 5721 5722 FOO x; 5723 5724 This reduces memory fragmentation and make it impossible to accidentally 5725 set a mandatory field to NULL. 5726 5727 This currently only works for some fields specifically a SEQUENCE, CHOICE, 5728 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 5729 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 5730 SEQUENCE OF. 5731 5732 *Steve Henson* 5733 5734 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 5735 5736 *Emilia Käsper* 5737 5738 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 5739 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 5740 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 5741 DES and RC4 ciphersuites. 5742 5743 *Matt Caswell* 5744 5745 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 5746 This changes the decoding behaviour for some invalid messages, 5747 though the change is mostly in the more lenient direction, and 5748 legacy behaviour is preserved as much as possible. 5749 5750 *Emilia Käsper* 5751 5752 * Fix no-stdio build. 5753 *David Woodhouse <David.Woodhouse@intel.com> and also* 5754 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 5755 5756 * New testing framework 5757 The testing framework has been largely rewritten and is now using 5758 perl and the perl modules Test::Harness and an extended variant of 5759 Test::More called OpenSSL::Test to do its work. All test scripts in 5760 test/ have been rewritten into test recipes, and all direct calls to 5761 executables in test/Makefile have become individual recipes using the 5762 simplified testing OpenSSL::Test::Simple. 5763 5764 For documentation on our testing modules, do: 5765 5766 perldoc test/testlib/OpenSSL/Test/Simple.pm 5767 perldoc test/testlib/OpenSSL/Test.pm 5768 5769 *Richard Levitte* 5770 5771 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 5772 are used; the latter aborts on memory leaks (usually checked on exit). 5773 Some undocumented "set malloc, etc., hooks" functions were removed 5774 and others were changed. All are now documented. 5775 5776 *Rich Salz* 5777 5778 * In DSA_generate_parameters_ex, if the provided seed is too short, 5779 return an error 5780 5781 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 5782 5783 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 5784 from RFC4279, RFC4785, RFC5487, RFC5489. 5785 5786 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 5787 original RSA_PSK patch. 5788 5789 *Steve Henson* 5790 5791 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 5792 era flag was never set throughout the codebase (only read). Also removed 5793 SSL3_FLAGS_POP_BUFFER which was only used if 5794 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 5795 5796 *Matt Caswell* 5797 5798 * Changed the default name options in the "ca", "crl", "req" and "x509" 5799 to be "oneline" instead of "compat". 5800 5801 *Richard Levitte* 5802 5803 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 5804 not aware of clients that still exhibit this bug, and the workaround 5805 hasn't been working properly for a while. 5806 5807 *Emilia Käsper* 5808 5809 * The return type of BIO_number_read() and BIO_number_written() as well as 5810 the corresponding num_read and num_write members in the BIO structure has 5811 changed from unsigned long to uint64_t. On platforms where an unsigned 5812 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 5813 transferred. 5814 5815 *Matt Caswell* 5816 5817 * Given the pervasive nature of TLS extensions it is inadvisable to run 5818 OpenSSL without support for them. It also means that maintaining 5819 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 5820 not well tested). Therefore, the OPENSSL_NO_TLSEXT option has been removed. 5821 5822 *Matt Caswell* 5823 5824 * Removed support for the two export grade static DH ciphersuites 5825 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 5826 were newly added (along with a number of other static DH ciphersuites) to 5827 1.0.2. However the two export ones have *never* worked since they were 5828 introduced. It seems strange in any case to be adding new export 5829 ciphersuites, and given "logjam" it also does not seem correct to fix them. 5830 5831 *Matt Caswell* 5832 5833 * Version negotiation has been rewritten. In particular SSLv23_method(), 5834 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 5835 and turned into macros which simply call the new preferred function names 5836 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 5837 should use the new names instead. Also as part of this change the ssl23.h 5838 header file has been removed. 5839 5840 *Matt Caswell* 5841 5842 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 5843 code and the associated standard is no longer considered fit-for-purpose. 5844 5845 *Matt Caswell* 5846 5847 * RT2547 was closed. When generating a private key, try to make the 5848 output file readable only by the owner. This behavior change might 5849 be noticeable when interacting with other software. 5850 5851 * Documented all exdata functions. Added CRYPTO_free_ex_index. 5852 Added a test. 5853 5854 *Rich Salz* 5855 5856 * Added HTTP GET support to the ocsp command. 5857 5858 *Rich Salz* 5859 5860 * Changed default digest for the dgst and enc commands from MD5 to 5861 sha256 5862 5863 *Rich Salz* 5864 5865 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 5866 5867 *Matt Caswell* 5868 5869 * Added support for TLS extended master secret from 5870 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 5871 initial patch which was a great help during development. 5872 5873 *Steve Henson* 5874 5875 * All libssl internal structures have been removed from the public header 5876 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 5877 now redundant). Users should not attempt to access internal structures 5878 directly. Instead they should use the provided API functions. 5879 5880 *Matt Caswell* 5881 5882 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 5883 Access to deprecated functions can be re-enabled by running config with 5884 "enable-deprecated". In addition applications wishing to use deprecated 5885 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 5886 will, by default, disable some transitive includes that previously existed 5887 in the header files (e.g. ec.h will no longer, by default, include bn.h) 5888 5889 *Matt Caswell* 5890 5891 * Added support for OCB mode. OpenSSL has been granted a patent license 5892 compatible with the OpenSSL license for use of OCB. Details are available 5893 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 5894 for OCB can be removed by calling config with no-ocb. 5895 5896 *Matt Caswell* 5897 5898 * SSLv2 support has been removed. It still supports receiving an SSLv2 5899 compatible client hello. 5900 5901 *Kurt Roeckx* 5902 5903 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 5904 done while fixing the error code for the key-too-small case. 5905 5906 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 5907 5908 * CA.sh has been removed; use CA.pl instead. 5909 5910 *Rich Salz* 5911 5912 * Removed old DES API. 5913 5914 *Rich Salz* 5915 5916 * Remove various unsupported platforms: 5917 Sony NEWS4 5918 BEOS and BEOS_R5 5919 NeXT 5920 SUNOS 5921 MPE/iX 5922 Sinix/ReliantUNIX RM400 5923 DGUX 5924 NCR 5925 Tandem 5926 Cray 5927 16-bit platforms such as WIN16 5928 5929 *Rich Salz* 5930 5931 * Clean up OPENSSL_NO_xxx #define's 5932 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 5933 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 5934 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 5935 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 5936 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 5937 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 5938 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 5939 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 5940 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 5941 - Remove MS_STATIC; it's a relic from platforms <32 bits. 5942 5943 *Rich Salz* 5944 5945 * Cleaned up dead code 5946 Remove all but one '#ifdef undef' which is to be looked at. 5947 5948 *Rich Salz* 5949 5950 * Clean up calling of xxx_free routines. 5951 Just like free(), fix most of the xxx_free routines to accept 5952 NULL. Remove the non-null checks from callers. Save much code. 5953 5954 *Rich Salz* 5955 5956 * Add secure heap for storage of private keys (when possible). 5957 Add BIO_s_secmem(), CBIGNUM, etc. 5958 Contributed by Akamai Technologies under our Corporate CLA. 5959 5960 *Rich Salz* 5961 5962 * Experimental support for a new, fast, unbiased prime candidate generator, 5963 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 5964 5965 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 5966 5967 * New output format NSS in the sess_id command line tool. This allows 5968 exporting the session id and the master key in NSS keylog format. 5969 5970 *Martin Kaiser <martin@kaiser.cx>* 5971 5972 * Harmonize version and its documentation. -f flag is used to display 5973 compilation flags. 5974 5975 *mancha <mancha1@zoho.com>* 5976 5977 * Fix eckey_priv_encode so it immediately returns an error upon a failure 5978 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 5979 5980 *mancha <mancha1@zoho.com>* 5981 5982 * Fix some double frees. These are not thought to be exploitable. 5983 5984 *mancha <mancha1@zoho.com>* 5985 5986 * A missing bounds check in the handling of the TLS heartbeat extension 5987 can be used to reveal up to 64k of memory to a connected client or 5988 server. 5989 5990 Thanks for Neel Mehta of Google Security for discovering this bug and to 5991 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 5992 preparing the fix ([CVE-2014-0160]) 5993 5994 *Adam Langley, Bodo Moeller* 5995 5996 * Fix for the attack described in the paper "Recovering OpenSSL 5997 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 5998 by Yuval Yarom and Naomi Benger. Details can be obtained from: 5999 <http://eprint.iacr.org/2014/140> 6000 6001 Thanks to Yuval Yarom and Naomi Benger for discovering this 6002 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 6003 6004 *Yuval Yarom and Naomi Benger* 6005 6006 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6007 this fixes a limitation in previous versions of OpenSSL. 6008 6009 *Steve Henson* 6010 6011 * Experimental encrypt-then-mac support. 6012 6013 Experimental support for encrypt then mac from 6014 draft-gutmann-tls-encrypt-then-mac-02.txt 6015 6016 To enable it set the appropriate extension number (0x42 for the test 6017 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 6018 6019 For non-compliant peers (i.e. just about everything) this should have no 6020 effect. 6021 6022 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 6023 6024 *Steve Henson* 6025 6026 * Add EVP support for key wrapping algorithms, to avoid problems with 6027 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6028 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6029 algorithms and include tests cases. 6030 6031 *Steve Henson* 6032 6033 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 6034 enveloped data. 6035 6036 *Steve Henson* 6037 6038 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6039 MGF1 digest and OAEP label. 6040 6041 *Steve Henson* 6042 6043 * Make openssl verify return errors. 6044 6045 *Chris Palmer <palmer@google.com> and Ben Laurie* 6046 6047 * New function ASN1_TIME_diff to calculate the difference between two 6048 ASN1_TIME structures or one structure and the current time. 6049 6050 *Steve Henson* 6051 6052 * Update fips_test_suite to support multiple command line options. New 6053 test to induce all self test errors in sequence and check expected 6054 failures. 6055 6056 *Steve Henson* 6057 6058 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 6059 sign or verify all in one operation. 6060 6061 *Steve Henson* 6062 6063 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 6064 test programs and fips_test_suite. Includes functionality to parse 6065 the minimal script output of fipsalgest.pl directly. 6066 6067 *Steve Henson* 6068 6069 * Add authorisation parameter to FIPS_module_mode_set(). 6070 6071 *Steve Henson* 6072 6073 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 6074 6075 *Steve Henson* 6076 6077 * Use separate DRBG fields for internal and external flags. New function 6078 FIPS_drbg_health_check() to perform on demand health checking. Add 6079 generation tests to fips_test_suite with reduced health check interval to 6080 demonstrate periodic health checking. Add "nodh" option to 6081 fips_test_suite to skip very slow DH test. 6082 6083 *Steve Henson* 6084 6085 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 6086 based on NID. 6087 6088 *Steve Henson* 6089 6090 * More extensive health check for DRBG checking many more failure modes. 6091 New function FIPS_selftest_drbg_all() to handle every possible DRBG 6092 combination: call this in fips_test_suite. 6093 6094 *Steve Henson* 6095 6096 * Add support for canonical generation of DSA parameter 'g'. See 6097 FIPS 186-3 A.2.3. 6098 6099 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 6100 POST to handle HMAC cases. 6101 6102 *Steve Henson* 6103 6104 * Add functions FIPS_module_version() and FIPS_module_version_text() 6105 to return numerical and string versions of the FIPS module number. 6106 6107 *Steve Henson* 6108 6109 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 6110 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 6111 outside the validated module in the FIPS capable OpenSSL. 6112 6113 *Steve Henson* 6114 6115 * Minor change to DRBG entropy callback semantics. In some cases 6116 there is no multiple of the block length between min_len and 6117 max_len. Allow the callback to return more than max_len bytes 6118 of entropy but discard any extra: it is the callback's responsibility 6119 to ensure that the extra data discarded does not impact the 6120 requested amount of entropy. 6121 6122 *Steve Henson* 6123 6124 * Add PRNG security strength checks to RSA, DSA and ECDSA using 6125 information in FIPS186-3, SP800-57 and SP800-131A. 6126 6127 *Steve Henson* 6128 6129 * CCM support via EVP. Interface is very similar to GCM case except we 6130 must supply all data in one chunk (i.e. no update, final) and the 6131 message length must be supplied if AAD is used. Add algorithm test 6132 support. 6133 6134 *Steve Henson* 6135 6136 * Initial version of POST overhaul. Add POST callback to allow the status 6137 of POST to be monitored and/or failures induced. Modify fips_test_suite 6138 to use callback. Always run all selftests even if one fails. 6139 6140 *Steve Henson* 6141 6142 * XTS support including algorithm test driver in the fips_gcmtest program. 6143 Note: this does increase the maximum key length from 32 to 64 bytes but 6144 there should be no binary compatibility issues as existing applications 6145 will never use XTS mode. 6146 6147 *Steve Henson* 6148 6149 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 6150 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 6151 performs algorithm blocking for unapproved PRNG types. Also do not 6152 set PRNG type in FIPS_mode_set(): leave this to the application. 6153 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 6154 the standard OpenSSL PRNG: set additional data to a date time vector. 6155 6156 *Steve Henson* 6157 6158 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 6159 This shouldn't present any incompatibility problems because applications 6160 shouldn't be using these directly and any that are will need to rethink 6161 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 6162 6163 *Steve Henson* 6164 6165 * Extensive self tests and health checking required by SP800-90 DRBG. 6166 Remove strength parameter from FIPS_drbg_instantiate and always 6167 instantiate at maximum supported strength. 6168 6169 *Steve Henson* 6170 6171 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 6172 6173 *Steve Henson* 6174 6175 * New algorithm test program fips_dhvs to handle DH primitives only testing. 6176 6177 *Steve Henson* 6178 6179 * New function DH_compute_key_padded() to compute a DH key and pad with 6180 leading zeroes if needed: this complies with SP800-56A et al. 6181 6182 *Steve Henson* 6183 6184 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 6185 anything, incomplete, subject to change and largely untested at present. 6186 6187 *Steve Henson* 6188 6189 * Modify fipscanisteronly build option to only build the necessary object 6190 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 6191 6192 *Steve Henson* 6193 6194 * Add experimental option FIPSSYMS to give all symbols in 6195 fipscanister.o and FIPS or fips prefix. This will avoid 6196 conflicts with future versions of OpenSSL. Add perl script 6197 util/fipsas.pl to preprocess assembly language source files 6198 and rename any affected symbols. 6199 6200 *Steve Henson* 6201 6202 * Add selftest checks and algorithm block of non-fips algorithms in 6203 FIPS mode. Remove DES2 from selftests. 6204 6205 *Steve Henson* 6206 6207 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 6208 return internal method without any ENGINE dependencies. Add new 6209 tiny fips sign and verify functions. 6210 6211 *Steve Henson* 6212 6213 * New build option no-ec2m to disable characteristic 2 code. 6214 6215 *Steve Henson* 6216 6217 * New build option "fipscanisteronly". This only builds fipscanister.o 6218 and (currently) associated fips utilities. Uses the file Makefile.fips 6219 instead of Makefile.org as the prototype. 6220 6221 *Steve Henson* 6222 6223 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 6224 Update fips_gcmtest to use IV generator. 6225 6226 *Steve Henson* 6227 6228 * Initial, experimental EVP support for AES-GCM. AAD can be input by 6229 setting output buffer to NULL. The `*Final` function must be 6230 called although it will not retrieve any additional data. The tag 6231 can be set or retrieved with a ctrl. The IV length is by default 12 6232 bytes (96 bits) but can be set to an alternative value. If the IV 6233 length exceeds the maximum IV length (currently 16 bytes) it cannot be 6234 set before the key. 6235 6236 *Steve Henson* 6237 6238 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 6239 underlying do_cipher function handles all cipher semantics itself 6240 including padding and finalisation. This is useful if (for example) 6241 an ENGINE cipher handles block padding itself. The behaviour of 6242 do_cipher is subtly changed if this flag is set: the return value 6243 is the number of characters written to the output buffer (zero is 6244 no longer an error code) or a negative error code. Also if the 6245 input buffer is NULL and length 0 finalisation should be performed. 6246 6247 *Steve Henson* 6248 6249 * If a candidate issuer certificate is already part of the constructed 6250 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 6251 6252 *Steve Henson* 6253 6254 * Improve forward-security support: add functions 6255 6256 void SSL_CTX_set_not_resumable_session_callback( 6257 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 6258 void SSL_set_not_resumable_session_callback( 6259 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 6260 6261 for use by SSL/TLS servers; the callback function will be called whenever a 6262 new session is created, and gets to decide whether the session may be 6263 cached to make it resumable (return 0) or not (return 1). (As by the 6264 SSL/TLS protocol specifications, the session_id sent by the server will be 6265 empty to indicate that the session is not resumable; also, the server will 6266 not generate RFC 4507 (RFC 5077) session tickets.) 6267 6268 A simple reasonable callback implementation is to return is_forward_secure. 6269 This parameter will be set to 1 or 0 depending on the ciphersuite selected 6270 by the SSL/TLS server library, indicating whether it can provide forward 6271 security. 6272 6273 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 6274 6275 * New -verify_name option in command line utilities to set verification 6276 parameters by name. 6277 6278 *Steve Henson* 6279 6280 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 6281 Add CMAC pkey methods. 6282 6283 *Steve Henson* 6284 6285 * Experimental renegotiation in s_server -www mode. If the client 6286 browses /reneg connection is renegotiated. If /renegcert it is 6287 renegotiated requesting a certificate. 6288 6289 *Steve Henson* 6290 6291 * Add an "external" session cache for debugging purposes to s_server. This 6292 should help trace issues which normally are only apparent in deployed 6293 multi-process servers. 6294 6295 *Steve Henson* 6296 6297 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 6298 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 6299 BIO_set_cipher() and some obscure PEM functions were changed so they 6300 can now return an error. The RAND changes required a change to the 6301 RAND_METHOD structure. 6302 6303 *Steve Henson* 6304 6305 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 6306 a gcc attribute to warn if the result of a function is ignored. This 6307 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 6308 whose return value is often ignored. 6309 6310 *Steve Henson* 6311 6312 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 6313 These allow SCTs (signed certificate timestamps) to be requested and 6314 validated when establishing a connection. 6315 6316 *Rob Percival <robpercival@google.com>* 6317 6318OpenSSL 1.0.2 6319------------- 6320 6321### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 6322 6323 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 6324 used even when parsing explicit parameters, when loading a encoded key 6325 or calling `EC_GROUP_new_from_ecpkparameters()`/ 6326 `EC_GROUP_new_from_ecparameters()`. 6327 This prevents bypass of security hardening and performance gains, 6328 especially for curves with specialized EC_METHODs. 6329 By default, if a key encoded with explicit parameters is loaded and later 6330 encoded, the output is still encoded with explicit parameters, even if 6331 internally a "named" EC_GROUP is used for computation. 6332 6333 *Nicola Tuveri* 6334 6335 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 6336 this change, EC_GROUP_set_generator would accept order and/or cofactor as 6337 NULL. After this change, only the cofactor parameter can be NULL. It also 6338 does some minimal sanity checks on the passed order. 6339 ([CVE-2019-1547]) 6340 6341 *Billy Bob Brumley* 6342 6343 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 6344 An attack is simple, if the first CMS_recipientInfo is valid but the 6345 second CMS_recipientInfo is chosen ciphertext. If the second 6346 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 6347 encryption key will be replaced by garbage, and the message cannot be 6348 decoded, but if the RSA decryption fails, the correct encryption key is 6349 used and the recipient will not notice the attack. 6350 As a work around for this potential attack the length of the decrypted 6351 key must be equal to the cipher default key length, in case the 6352 certificate is not given and all recipientInfo are tried out. 6353 The old behaviour can be re-enabled in the CMS code by setting the 6354 CMS_DEBUG_DECRYPT flag. 6355 ([CVE-2019-1563]) 6356 6357 *Bernd Edlinger* 6358 6359 * Document issue with installation paths in diverse Windows builds 6360 6361 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 6362 binaries and run-time config file. 6363 ([CVE-2019-1552]) 6364 6365 *Richard Levitte* 6366 6367### Changes between 1.0.2r and 1.0.2s [28 May 2019] 6368 6369 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 6370 This changes the size when using the `genpkey` command when no size is given. 6371 It fixes an omission in earlier changes that changed all RSA, DSA and DH 6372 generation commands to use 2048 bits by default. 6373 6374 *Kurt Roeckx* 6375 6376 * Add FIPS support for Android Arm 64-bit 6377 6378 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 6379 Module in Version 2.0.10. For some reason, the corresponding target 6380 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 6381 built with FIPS support on Android Arm 64-bit. This omission has been 6382 fixed. 6383 6384 *Matthias St. Pierre* 6385 6386### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 6387 6388 * 0-byte record padding oracle 6389 6390 If an application encounters a fatal protocol error and then calls 6391 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 6392 then OpenSSL can respond differently to the calling application if a 0 byte 6393 record is received with invalid padding compared to if a 0 byte record is 6394 received with an invalid MAC. If the application then behaves differently 6395 based on that in a way that is detectable to the remote peer, then this 6396 amounts to a padding oracle that could be used to decrypt data. 6397 6398 In order for this to be exploitable "non-stitched" ciphersuites must be in 6399 use. Stitched ciphersuites are optimised implementations of certain 6400 commonly used ciphersuites. Also the application must call SSL_shutdown() 6401 twice even if a protocol error has occurred (applications should not do 6402 this but some do anyway). 6403 6404 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 6405 Aviram, with additional investigation by Steven Collison and Andrew 6406 Hourselt. It was reported to OpenSSL on 10th December 2018. 6407 ([CVE-2019-1559]) 6408 6409 *Matt Caswell* 6410 6411 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 6412 6413 *Richard Levitte* 6414 6415### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 6416 6417 * Microarchitecture timing vulnerability in ECC scalar multiplication 6418 6419 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 6420 shown to be vulnerable to a microarchitecture timing side channel attack. 6421 An attacker with sufficient access to mount local timing attacks during 6422 ECDSA signature generation could recover the private key. 6423 6424 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 6425 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 6426 Nicola Tuveri. 6427 ([CVE-2018-5407]) 6428 6429 *Billy Brumley* 6430 6431 * Timing vulnerability in DSA signature generation 6432 6433 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 6434 timing side channel attack. An attacker could use variations in the signing 6435 algorithm to recover the private key. 6436 6437 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 6438 ([CVE-2018-0734]) 6439 6440 *Paul Dale* 6441 6442 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 6443 Module, accidentally introduced while backporting security fixes from the 6444 development branch and hindering the use of ECC in FIPS mode. 6445 6446 *Nicola Tuveri* 6447 6448### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 6449 6450 * Client DoS due to large DH parameter 6451 6452 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 6453 malicious server can send a very large prime value to the client. This will 6454 cause the client to spend an unreasonably long period of time generating a 6455 key for this prime resulting in a hang until the client has finished. This 6456 could be exploited in a Denial Of Service attack. 6457 6458 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 6459 ([CVE-2018-0732]) 6460 6461 *Guido Vranken* 6462 6463 * Cache timing vulnerability in RSA Key Generation 6464 6465 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 6466 a cache timing side channel attack. An attacker with sufficient access to 6467 mount cache timing attacks during the RSA key generation process could 6468 recover the private key. 6469 6470 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 6471 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 6472 ([CVE-2018-0737]) 6473 6474 *Billy Brumley* 6475 6476 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 6477 parameter is no longer accepted, as it leads to a corrupt table. NULL 6478 pem_str is reserved for alias entries only. 6479 6480 *Richard Levitte* 6481 6482 * Revert blinding in ECDSA sign and instead make problematic addition 6483 length-invariant. Switch even to fixed-length Montgomery multiplication. 6484 6485 *Andy Polyakov* 6486 6487 * Change generating and checking of primes so that the error rate of not 6488 being prime depends on the intended use based on the size of the input. 6489 For larger primes this will result in more rounds of Miller-Rabin. 6490 The maximal error rate for primes with more than 1080 bits is lowered 6491 to 2^-128. 6492 6493 *Kurt Roeckx, Annie Yousar* 6494 6495 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 6496 6497 *Kurt Roeckx* 6498 6499 * Add blinding to ECDSA and DSA signatures to protect against side channel 6500 attacks discovered by Keegan Ryan (NCC Group). 6501 6502 *Matt Caswell* 6503 6504 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 6505 now allow empty (zero character) pass phrases. 6506 6507 *Richard Levitte* 6508 6509 * Certificate time validation (X509_cmp_time) enforces stricter 6510 compliance with RFC 5280. Fractional seconds and timezone offsets 6511 are no longer allowed. 6512 6513 *Emilia Käsper* 6514 6515### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 6516 6517 * Constructed ASN.1 types with a recursive definition could exceed the stack 6518 6519 Constructed ASN.1 types with a recursive definition (such as can be found 6520 in PKCS7) could eventually exceed the stack given malicious input with 6521 excessive recursion. This could result in a Denial Of Service attack. There 6522 are no such structures used within SSL/TLS that come from untrusted sources 6523 so this is considered safe. 6524 6525 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 6526 project. 6527 ([CVE-2018-0739]) 6528 6529 *Matt Caswell* 6530 6531### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 6532 6533 * Read/write after SSL object in error state 6534 6535 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 6536 mechanism. The intent was that if a fatal error occurred during a handshake 6537 then OpenSSL would move into the error state and would immediately fail if 6538 you attempted to continue the handshake. This works as designed for the 6539 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 6540 SSL_connect()), however due to a bug it does not work correctly if 6541 SSL_read() or SSL_write() is called directly. In that scenario, if the 6542 handshake fails then a fatal error will be returned in the initial function 6543 call. If SSL_read()/SSL_write() is subsequently called by the application 6544 for the same SSL object then it will succeed and the data is passed without 6545 being decrypted/encrypted directly from the SSL/TLS record layer. 6546 6547 In order to exploit this issue an application bug would have to be present 6548 that resulted in a call to SSL_read()/SSL_write() being issued after having 6549 already received a fatal error. 6550 6551 This issue was reported to OpenSSL by David Benjamin (Google). 6552 ([CVE-2017-3737]) 6553 6554 *Matt Caswell* 6555 6556 * rsaz_1024_mul_avx2 overflow bug on x86_64 6557 6558 There is an overflow bug in the AVX2 Montgomery multiplication procedure 6559 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 6560 Analysis suggests that attacks against RSA and DSA as a result of this 6561 defect would be very difficult to perform and are not believed likely. 6562 Attacks against DH1024 are considered just feasible, because most of the 6563 work necessary to deduce information about a private key may be performed 6564 offline. The amount of resources required for such an attack would be 6565 significant. However, for an attack on TLS to be meaningful, the server 6566 would have to share the DH1024 private key among multiple clients, which is 6567 no longer an option since CVE-2016-0701. 6568 6569 This only affects processors that support the AVX2 but not ADX extensions 6570 like Intel Haswell (4th generation). 6571 6572 This issue was reported to OpenSSL by David Benjamin (Google). The issue 6573 was originally found via the OSS-Fuzz project. 6574 ([CVE-2017-3738]) 6575 6576 *Andy Polyakov* 6577 6578### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 6579 6580 * bn_sqrx8x_internal carry bug on x86_64 6581 6582 There is a carry propagating bug in the x86_64 Montgomery squaring 6583 procedure. No EC algorithms are affected. Analysis suggests that attacks 6584 against RSA and DSA as a result of this defect would be very difficult to 6585 perform and are not believed likely. Attacks against DH are considered just 6586 feasible (although very difficult) because most of the work necessary to 6587 deduce information about a private key may be performed offline. The amount 6588 of resources required for such an attack would be very significant and 6589 likely only accessible to a limited number of attackers. An attacker would 6590 additionally need online access to an unpatched system using the target 6591 private key in a scenario with persistent DH parameters and a private 6592 key that is shared between multiple clients. 6593 6594 This only affects processors that support the BMI1, BMI2 and ADX extensions 6595 like Intel Broadwell (5th generation) and later or AMD Ryzen. 6596 6597 This issue was reported to OpenSSL by the OSS-Fuzz project. 6598 ([CVE-2017-3736]) 6599 6600 *Andy Polyakov* 6601 6602 * Malformed X.509 IPAddressFamily could cause OOB read 6603 6604 If an X.509 certificate has a malformed IPAddressFamily extension, 6605 OpenSSL could do a one-byte buffer overread. The most likely result 6606 would be an erroneous display of the certificate in text format. 6607 6608 This issue was reported to OpenSSL by the OSS-Fuzz project. 6609 6610 *Rich Salz* 6611 6612### Changes between 1.0.2k and 1.0.2l [25 May 2017] 6613 6614 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 6615 platform rather than 'mingw'. 6616 6617 *Richard Levitte* 6618 6619### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 6620 6621 * Truncated packet could crash via OOB read 6622 6623 If one side of an SSL/TLS path is running on a 32-bit host and a specific 6624 cipher is being used, then a truncated packet can cause that host to 6625 perform an out-of-bounds read, usually resulting in a crash. 6626 6627 This issue was reported to OpenSSL by Robert Święcki of Google. 6628 ([CVE-2017-3731]) 6629 6630 *Andy Polyakov* 6631 6632 * BN_mod_exp may produce incorrect results on x86_64 6633 6634 There is a carry propagating bug in the x86_64 Montgomery squaring 6635 procedure. No EC algorithms are affected. Analysis suggests that attacks 6636 against RSA and DSA as a result of this defect would be very difficult to 6637 perform and are not believed likely. Attacks against DH are considered just 6638 feasible (although very difficult) because most of the work necessary to 6639 deduce information about a private key may be performed offline. The amount 6640 of resources required for such an attack would be very significant and 6641 likely only accessible to a limited number of attackers. An attacker would 6642 additionally need online access to an unpatched system using the target 6643 private key in a scenario with persistent DH parameters and a private 6644 key that is shared between multiple clients. For example this can occur by 6645 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 6646 similar to CVE-2015-3193 but must be treated as a separate problem. 6647 6648 This issue was reported to OpenSSL by the OSS-Fuzz project. 6649 ([CVE-2017-3732]) 6650 6651 *Andy Polyakov* 6652 6653 * Montgomery multiplication may produce incorrect results 6654 6655 There is a carry propagating bug in the Broadwell-specific Montgomery 6656 multiplication procedure that handles input lengths divisible by, but 6657 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 6658 and DH private keys are impossible. This is because the subroutine in 6659 question is not used in operations with the private key itself and an input 6660 of the attacker's direct choice. Otherwise the bug can manifest itself as 6661 transient authentication and key negotiation failures or reproducible 6662 erroneous outcome of public-key operations with specially crafted input. 6663 Among EC algorithms only Brainpool P-512 curves are affected and one 6664 presumably can attack ECDH key negotiation. Impact was not analyzed in 6665 detail, because pre-requisites for attack are considered unlikely. Namely 6666 multiple clients have to choose the curve in question and the server has to 6667 share the private key among them, neither of which is default behaviour. 6668 Even then only clients that chose the curve will be affected. 6669 6670 This issue was publicly reported as transient failures and was not 6671 initially recognized as a security issue. Thanks to Richard Morgan for 6672 providing reproducible case. 6673 ([CVE-2016-7055]) 6674 6675 *Andy Polyakov* 6676 6677 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 6678 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 6679 prevent issues where no progress is being made and the peer continually 6680 sends unrecognised record types, using up resources processing them. 6681 6682 *Matt Caswell* 6683 6684### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 6685 6686 * Missing CRL sanity check 6687 6688 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 6689 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 6690 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 6691 6692 This issue only affects the OpenSSL 1.0.2i 6693 ([CVE-2016-7052]) 6694 6695 *Matt Caswell* 6696 6697### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 6698 6699 * OCSP Status Request extension unbounded memory growth 6700 6701 A malicious client can send an excessively large OCSP Status Request 6702 extension. If that client continually requests renegotiation, sending a 6703 large OCSP Status Request extension each time, then there will be unbounded 6704 memory growth on the server. This will eventually lead to a Denial Of 6705 Service attack through memory exhaustion. Servers with a default 6706 configuration are vulnerable even if they do not support OCSP. Builds using 6707 the "no-ocsp" build time option are not affected. 6708 6709 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6710 ([CVE-2016-6304]) 6711 6712 *Matt Caswell* 6713 6714 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6715 HIGH to MEDIUM. 6716 6717 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6718 Leurent (INRIA) 6719 ([CVE-2016-2183]) 6720 6721 *Rich Salz* 6722 6723 * OOB write in MDC2_Update() 6724 6725 An overflow can occur in MDC2_Update() either if called directly or 6726 through the EVP_DigestUpdate() function using MDC2. If an attacker 6727 is able to supply very large amounts of input data after a previous 6728 call to EVP_EncryptUpdate() with a partial block then a length check 6729 can overflow resulting in a heap corruption. 6730 6731 The amount of data needed is comparable to SIZE_MAX which is impractical 6732 on most platforms. 6733 6734 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6735 ([CVE-2016-6303]) 6736 6737 *Stephen Henson* 6738 6739 * Malformed SHA512 ticket DoS 6740 6741 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6742 DoS attack where a malformed ticket will result in an OOB read which will 6743 ultimately crash. 6744 6745 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6746 a custom server callback and ticket lookup mechanism. 6747 6748 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6749 ([CVE-2016-6302]) 6750 6751 *Stephen Henson* 6752 6753 * OOB write in BN_bn2dec() 6754 6755 The function BN_bn2dec() does not check the return value of BN_div_word(). 6756 This can cause an OOB write if an application uses this function with an 6757 overly large BIGNUM. This could be a problem if an overly large certificate 6758 or CRL is printed out from an untrusted source. TLS is not affected because 6759 record limits will reject an oversized certificate before it is parsed. 6760 6761 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6762 ([CVE-2016-2182]) 6763 6764 *Stephen Henson* 6765 6766 * OOB read in TS_OBJ_print_bio() 6767 6768 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6769 the total length the OID text representation would use and not the amount 6770 of data written. This will result in OOB reads when large OIDs are 6771 presented. 6772 6773 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6774 ([CVE-2016-2180]) 6775 6776 *Stephen Henson* 6777 6778 * Pointer arithmetic undefined behaviour 6779 6780 Avoid some undefined pointer arithmetic 6781 6782 A common idiom in the codebase is to check limits in the following manner: 6783 "p + len > limit" 6784 6785 Where "p" points to some malloc'd data of SIZE bytes and 6786 limit == p + SIZE 6787 6788 "len" here could be from some externally supplied data (e.g. from a TLS 6789 message). 6790 6791 The rules of C pointer arithmetic are such that "p + len" is only well 6792 defined where len <= SIZE. Therefore the above idiom is actually 6793 undefined behaviour. 6794 6795 For example this could cause problems if some malloc implementation 6796 provides an address for "p" such that "p + len" actually overflows for 6797 values of len that are too big and therefore p + len < limit. 6798 6799 This issue was reported to OpenSSL by Guido Vranken 6800 ([CVE-2016-2177]) 6801 6802 *Matt Caswell* 6803 6804 * Constant time flag not preserved in DSA signing 6805 6806 Operations in the DSA signing algorithm should run in constant time in 6807 order to avoid side channel attacks. A flaw in the OpenSSL DSA 6808 implementation means that a non-constant time codepath is followed for 6809 certain operations. This has been demonstrated through a cache-timing 6810 attack to be sufficient for an attacker to recover the private DSA key. 6811 6812 This issue was reported by César Pereida (Aalto University), Billy Brumley 6813 (Tampere University of Technology), and Yuval Yarom (The University of 6814 Adelaide and NICTA). 6815 ([CVE-2016-2178]) 6816 6817 *César Pereida* 6818 6819 * DTLS buffered message DoS 6820 6821 In a DTLS connection where handshake messages are delivered out-of-order 6822 those messages that OpenSSL is not yet ready to process will be buffered 6823 for later use. Under certain circumstances, a flaw in the logic means that 6824 those messages do not get removed from the buffer even though the handshake 6825 has been completed. An attacker could force up to approx. 15 messages to 6826 remain in the buffer when they are no longer required. These messages will 6827 be cleared when the DTLS connection is closed. The default maximum size for 6828 a message is 100k. Therefore, the attacker could force an additional 1500k 6829 to be consumed per connection. By opening many simultaneous connections an 6830 attacker could cause a DoS attack through memory exhaustion. 6831 6832 This issue was reported to OpenSSL by Quan Luo. 6833 ([CVE-2016-2179]) 6834 6835 *Matt Caswell* 6836 6837 * DTLS replay protection DoS 6838 6839 A flaw in the DTLS replay attack protection mechanism means that records 6840 that arrive for future epochs update the replay protection "window" before 6841 the MAC for the record has been validated. This could be exploited by an 6842 attacker by sending a record for the next epoch (which does not have to 6843 decrypt or have a valid MAC), with a very large sequence number. This means 6844 that all subsequent legitimate packets are dropped causing a denial of 6845 service for a specific DTLS connection. 6846 6847 This issue was reported to OpenSSL by the OCAP audit team. 6848 ([CVE-2016-2181]) 6849 6850 *Matt Caswell* 6851 6852 * Certificate message OOB reads 6853 6854 In OpenSSL 1.0.2 and earlier some missing message length checks can result 6855 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 6856 theoretical DoS risk but this has not been observed in practice on common 6857 platforms. 6858 6859 The messages affected are client certificate, client certificate request 6860 and server certificate. As a result the attack can only be performed 6861 against a client or a server which enables client authentication. 6862 6863 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6864 ([CVE-2016-6306]) 6865 6866 *Stephen Henson* 6867 6868### Changes between 1.0.2g and 1.0.2h [3 May 2016] 6869 6870 * Prevent padding oracle in AES-NI CBC MAC check 6871 6872 A MITM attacker can use a padding oracle attack to decrypt traffic 6873 when the connection uses an AES CBC cipher and the server support 6874 AES-NI. 6875 6876 This issue was introduced as part of the fix for Lucky 13 padding 6877 attack ([CVE-2013-0169]). The padding check was rewritten to be in 6878 constant time by making sure that always the same bytes are read and 6879 compared against either the MAC or padding bytes. But it no longer 6880 checked that there was enough data to have both the MAC and padding 6881 bytes. 6882 6883 This issue was reported by Juraj Somorovsky using TLS-Attacker. 6884 6885 *Kurt Roeckx* 6886 6887 * Fix EVP_EncodeUpdate overflow 6888 6889 An overflow can occur in the EVP_EncodeUpdate() function which is used for 6890 Base64 encoding of binary data. If an attacker is able to supply very large 6891 amounts of input data then a length check can overflow resulting in a heap 6892 corruption. 6893 6894 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 6895 the `PEM_write_bio*` family of functions. These are mainly used within the 6896 OpenSSL command line applications, so any application which processes data 6897 from an untrusted source and outputs it as a PEM file should be considered 6898 vulnerable to this issue. User applications that call these APIs directly 6899 with large amounts of untrusted data may also be vulnerable. 6900 6901 This issue was reported by Guido Vranken. 6902 ([CVE-2016-2105]) 6903 6904 *Matt Caswell* 6905 6906 * Fix EVP_EncryptUpdate overflow 6907 6908 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 6909 is able to supply very large amounts of input data after a previous call to 6910 EVP_EncryptUpdate() with a partial block then a length check can overflow 6911 resulting in a heap corruption. Following an analysis of all OpenSSL 6912 internal usage of the EVP_EncryptUpdate() function all usage is one of two 6913 forms. The first form is where the EVP_EncryptUpdate() call is known to be 6914 the first called function after an EVP_EncryptInit(), and therefore that 6915 specific call must be safe. The second form is where the length passed to 6916 EVP_EncryptUpdate() can be seen from the code to be some small value and 6917 therefore there is no possibility of an overflow. Since all instances are 6918 one of these two forms, it is believed that there can be no overflows in 6919 internal code due to this problem. It should be noted that 6920 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 6921 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 6922 of these calls have also been analysed too and it is believed there are no 6923 instances in internal usage where an overflow could occur. 6924 6925 This issue was reported by Guido Vranken. 6926 ([CVE-2016-2106]) 6927 6928 *Matt Caswell* 6929 6930 * Prevent ASN.1 BIO excessive memory allocation 6931 6932 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 6933 a short invalid encoding can cause allocation of large amounts of memory 6934 potentially consuming excessive resources or exhausting memory. 6935 6936 Any application parsing untrusted data through d2i BIO functions is 6937 affected. The memory based functions such as d2i_X509() are *not* affected. 6938 Since the memory based functions are used by the TLS library, TLS 6939 applications are not affected. 6940 6941 This issue was reported by Brian Carpenter. 6942 ([CVE-2016-2109]) 6943 6944 *Stephen Henson* 6945 6946 * EBCDIC overread 6947 6948 ASN1 Strings that are over 1024 bytes can cause an overread in applications 6949 using the X509_NAME_oneline() function on EBCDIC systems. This could result 6950 in arbitrary stack data being returned in the buffer. 6951 6952 This issue was reported by Guido Vranken. 6953 ([CVE-2016-2176]) 6954 6955 *Matt Caswell* 6956 6957 * Modify behavior of ALPN to invoke callback after SNI/servername 6958 callback, such that updates to the SSL_CTX affect ALPN. 6959 6960 *Todd Short* 6961 6962 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 6963 default. 6964 6965 *Kurt Roeckx* 6966 6967 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 6968 methods are enabled and ssl2 is disabled the methods return NULL. 6969 6970 *Kurt Roeckx* 6971 6972### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 6973 6974* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 6975 Builds that are not configured with "enable-weak-ssl-ciphers" will not 6976 provide any "EXPORT" or "LOW" strength ciphers. 6977 6978 *Viktor Dukhovni* 6979 6980* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 6981 is by default disabled at build-time. Builds that are not configured with 6982 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 6983 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 6984 will need to explicitly call either of: 6985 6986 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 6987 or 6988 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 6989 6990 as appropriate. Even if either of those is used, or the application 6991 explicitly uses the version-specific SSLv2_method() or its client and 6992 server variants, SSLv2 ciphers vulnerable to exhaustive search key 6993 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 6994 ciphers, and SSLv2 56-bit DES are no longer available. 6995 ([CVE-2016-0800]) 6996 6997 *Viktor Dukhovni* 6998 6999 * Fix a double-free in DSA code 7000 7001 A double free bug was discovered when OpenSSL parses malformed DSA private 7002 keys and could lead to a DoS attack or memory corruption for applications 7003 that receive DSA private keys from untrusted sources. This scenario is 7004 considered rare. 7005 7006 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 7007 libFuzzer. 7008 ([CVE-2016-0705]) 7009 7010 *Stephen Henson* 7011 7012 * Disable SRP fake user seed to address a server memory leak. 7013 7014 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 7015 7016 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 7017 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 7018 was changed to ignore the "fake user" SRP seed, even if the seed 7019 is configured. 7020 7021 Users should use SRP_VBASE_get1_by_user instead. Note that in 7022 SRP_VBASE_get1_by_user, caller must free the returned value. Note 7023 also that even though configuring the SRP seed attempts to hide 7024 invalid usernames by continuing the handshake with fake 7025 credentials, this behaviour is not constant time and no strong 7026 guarantees are made that the handshake is indistinguishable from 7027 that of a valid user. 7028 ([CVE-2016-0798]) 7029 7030 *Emilia Käsper* 7031 7032 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 7033 7034 In the BN_hex2bn function the number of hex digits is calculated using an 7035 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 7036 large values of `i` this can result in `bn_expand` not allocating any 7037 memory because `i * 4` is negative. This can leave the internal BIGNUM data 7038 field as NULL leading to a subsequent NULL ptr deref. For very large values 7039 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 7040 In this case memory is allocated to the internal BIGNUM data field, but it 7041 is insufficiently sized leading to heap corruption. A similar issue exists 7042 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 7043 is ever called by user applications with very large untrusted hex/dec data. 7044 This is anticipated to be a rare occurrence. 7045 7046 All OpenSSL internal usage of these functions use data that is not expected 7047 to be untrusted, e.g. config file data or application command line 7048 arguments. If user developed applications generate config file data based 7049 on untrusted data then it is possible that this could also lead to security 7050 consequences. This is also anticipated to be rare. 7051 7052 This issue was reported to OpenSSL by Guido Vranken. 7053 ([CVE-2016-0797]) 7054 7055 *Matt Caswell* 7056 7057 * Fix memory issues in `BIO_*printf` functions 7058 7059 The internal `fmtstr` function used in processing a "%s" format string in 7060 the `BIO_*printf` functions could overflow while calculating the length of a 7061 string and cause an OOB read when printing very long strings. 7062 7063 Additionally the internal `doapr_outch` function can attempt to write to an 7064 OOB memory location (at an offset from the NULL pointer) in the event of a 7065 memory allocation failure. In 1.0.2 and below this could be caused where 7066 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 7067 could be in processing a very long "%s" format string. Memory leaks can 7068 also occur. 7069 7070 The first issue may mask the second issue dependent on compiler behaviour. 7071 These problems could enable attacks where large amounts of untrusted data 7072 is passed to the `BIO_*printf` functions. If applications use these functions 7073 in this way then they could be vulnerable. OpenSSL itself uses these 7074 functions when printing out human-readable dumps of ASN.1 data. Therefore 7075 applications that print this data could be vulnerable if the data is from 7076 untrusted sources. OpenSSL command line applications could also be 7077 vulnerable where they print out ASN.1 data, or if untrusted data is passed 7078 as command line arguments. 7079 7080 Libssl is not considered directly vulnerable. Additionally certificates etc 7081 received via remote connections via libssl are also unlikely to be able to 7082 trigger these issues because of message size limits enforced within libssl. 7083 7084 This issue was reported to OpenSSL Guido Vranken. 7085 ([CVE-2016-0799]) 7086 7087 *Matt Caswell* 7088 7089 * Side channel attack on modular exponentiation 7090 7091 A side-channel attack was found which makes use of cache-bank conflicts on 7092 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 7093 of RSA keys. The ability to exploit this issue is limited as it relies on 7094 an attacker who has control of code in a thread running on the same 7095 hyper-threaded core as the victim thread which is performing decryptions. 7096 7097 This issue was reported to OpenSSL by Yuval Yarom, The University of 7098 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 7099 Nadia Heninger, University of Pennsylvania with more information at 7100 <http://cachebleed.info>. 7101 ([CVE-2016-0702]) 7102 7103 *Andy Polyakov* 7104 7105 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 7106 if no keysize is specified with default_bits. This fixes an 7107 omission in an earlier change that changed all RSA/DSA key generation 7108 commands to use 2048 bits by default. 7109 7110 *Emilia Käsper* 7111 7112### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 7113 7114 * DH small subgroups 7115 7116 Historically OpenSSL only ever generated DH parameters based on "safe" 7117 primes. More recently (in version 1.0.2) support was provided for 7118 generating X9.42 style parameter files such as those required for RFC 5114 7119 support. The primes used in such files may not be "safe". Where an 7120 application is using DH configured with parameters based on primes that are 7121 not "safe" then an attacker could use this fact to find a peer's private 7122 DH exponent. This attack requires that the attacker complete multiple 7123 handshakes in which the peer uses the same private DH exponent. For example 7124 this could be used to discover a TLS server's private DH exponent if it's 7125 reusing the private DH exponent or it's using a static DH ciphersuite. 7126 7127 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 7128 TLS. It is not on by default. If the option is not set then the server 7129 reuses the same private DH exponent for the life of the server process and 7130 would be vulnerable to this attack. It is believed that many popular 7131 applications do set this option and would therefore not be at risk. 7132 7133 The fix for this issue adds an additional check where a "q" parameter is 7134 available (as is the case in X9.42 based parameters). This detects the 7135 only known attack, and is the only possible defense for static DH 7136 ciphersuites. This could have some performance impact. 7137 7138 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 7139 default and cannot be disabled. This could have some performance impact. 7140 7141 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 7142 ([CVE-2016-0701]) 7143 7144 *Matt Caswell* 7145 7146 * SSLv2 doesn't block disabled ciphers 7147 7148 A malicious client can negotiate SSLv2 ciphers that have been disabled on 7149 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 7150 been disabled, provided that the SSLv2 protocol was not also disabled via 7151 SSL_OP_NO_SSLv2. 7152 7153 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 7154 and Sebastian Schinzel. 7155 ([CVE-2015-3197]) 7156 7157 *Viktor Dukhovni* 7158 7159### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 7160 7161 * BN_mod_exp may produce incorrect results on x86_64 7162 7163 There is a carry propagating bug in the x86_64 Montgomery squaring 7164 procedure. No EC algorithms are affected. Analysis suggests that attacks 7165 against RSA and DSA as a result of this defect would be very difficult to 7166 perform and are not believed likely. Attacks against DH are considered just 7167 feasible (although very difficult) because most of the work necessary to 7168 deduce information about a private key may be performed offline. The amount 7169 of resources required for such an attack would be very significant and 7170 likely only accessible to a limited number of attackers. An attacker would 7171 additionally need online access to an unpatched system using the target 7172 private key in a scenario with persistent DH parameters and a private 7173 key that is shared between multiple clients. For example this can occur by 7174 default in OpenSSL DHE based SSL/TLS ciphersuites. 7175 7176 This issue was reported to OpenSSL by Hanno Böck. 7177 ([CVE-2015-3193]) 7178 7179 *Andy Polyakov* 7180 7181 * Certificate verify crash with missing PSS parameter 7182 7183 The signature verification routines will crash with a NULL pointer 7184 dereference if presented with an ASN.1 signature using the RSA PSS 7185 algorithm and absent mask generation function parameter. Since these 7186 routines are used to verify certificate signature algorithms this can be 7187 used to crash any certificate verification operation and exploited in a 7188 DoS attack. Any application which performs certificate verification is 7189 vulnerable including OpenSSL clients and servers which enable client 7190 authentication. 7191 7192 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7193 ([CVE-2015-3194]) 7194 7195 *Stephen Henson* 7196 7197 * X509_ATTRIBUTE memory leak 7198 7199 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7200 memory. This structure is used by the PKCS#7 and CMS routines so any 7201 application which reads PKCS#7 or CMS data from untrusted sources is 7202 affected. SSL/TLS is not affected. 7203 7204 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7205 libFuzzer. 7206 ([CVE-2015-3195]) 7207 7208 *Stephen Henson* 7209 7210 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7211 This changes the decoding behaviour for some invalid messages, 7212 though the change is mostly in the more lenient direction, and 7213 legacy behaviour is preserved as much as possible. 7214 7215 *Emilia Käsper* 7216 7217 * In DSA_generate_parameters_ex, if the provided seed is too short, 7218 return an error 7219 7220 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7221 7222### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 7223 7224 * Alternate chains certificate forgery 7225 7226 During certificate verification, OpenSSL will attempt to find an 7227 alternative certificate chain if the first attempt to build such a chain 7228 fails. An error in the implementation of this logic can mean that an 7229 attacker could cause certain checks on untrusted certificates to be 7230 bypassed, such as the CA flag, enabling them to use a valid leaf 7231 certificate to act as a CA and "issue" an invalid certificate. 7232 7233 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7234 (Google/BoringSSL). 7235 7236 *Matt Caswell* 7237 7238### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 7239 7240 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7241 incompatibility in the handling of HMAC. The previous ABI has now been 7242 restored. 7243 7244 *Matt Caswell* 7245 7246### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 7247 7248 * Malformed ECParameters causes infinite loop 7249 7250 When processing an ECParameters structure OpenSSL enters an infinite loop 7251 if the curve specified is over a specially malformed binary polynomial 7252 field. 7253 7254 This can be used to perform denial of service against any 7255 system which processes public keys, certificate requests or 7256 certificates. This includes TLS clients and TLS servers with 7257 client authentication enabled. 7258 7259 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7260 ([CVE-2015-1788]) 7261 7262 *Andy Polyakov* 7263 7264 * Exploitable out-of-bounds read in X509_cmp_time 7265 7266 X509_cmp_time does not properly check the length of the ASN1_TIME 7267 string and can read a few bytes out of bounds. In addition, 7268 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7269 time string. 7270 7271 An attacker can use this to craft malformed certificates and CRLs of 7272 various sizes and potentially cause a segmentation fault, resulting in 7273 a DoS on applications that verify certificates or CRLs. TLS clients 7274 that verify CRLs are affected. TLS clients and servers with client 7275 authentication enabled may be affected if they use custom verification 7276 callbacks. 7277 7278 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7279 independently by Hanno Böck. 7280 ([CVE-2015-1789]) 7281 7282 *Emilia Käsper* 7283 7284 * PKCS7 crash with missing EnvelopedContent 7285 7286 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7287 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7288 with missing content and trigger a NULL pointer dereference on parsing. 7289 7290 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7291 structures from untrusted sources are affected. OpenSSL clients and 7292 servers are not affected. 7293 7294 This issue was reported to OpenSSL by Michal Zalewski (Google). 7295 ([CVE-2015-1790]) 7296 7297 *Emilia Käsper* 7298 7299 * CMS verify infinite loop with unknown hash function 7300 7301 When verifying a signedData message the CMS code can enter an infinite loop 7302 if presented with an unknown hash function OID. This can be used to perform 7303 denial of service against any system which verifies signedData messages using 7304 the CMS code. 7305 This issue was reported to OpenSSL by Johannes Bauer. 7306 ([CVE-2015-1792]) 7307 7308 *Stephen Henson* 7309 7310 * Race condition handling NewSessionTicket 7311 7312 If a NewSessionTicket is received by a multi-threaded client when attempting to 7313 reuse a previous ticket then a race condition can occur potentially leading to 7314 a double free of the ticket data. 7315 ([CVE-2015-1791]) 7316 7317 *Matt Caswell* 7318 7319 * Only support 256-bit or stronger elliptic curves with the 7320 'ecdh_auto' setting (server) or by default (client). Of supported 7321 curves, prefer P-256 (both). 7322 7323 *Emilia Kasper* 7324 7325### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 7326 7327 * ClientHello sigalgs DoS fix 7328 7329 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 7330 invalid signature algorithms extension a NULL pointer dereference will 7331 occur. This can be exploited in a DoS attack against the server. 7332 7333 This issue was was reported to OpenSSL by David Ramos of Stanford 7334 University. 7335 ([CVE-2015-0291]) 7336 7337 *Stephen Henson and Matt Caswell* 7338 7339 * Multiblock corrupted pointer fix 7340 7341 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 7342 feature only applies on 64 bit x86 architecture platforms that support AES 7343 NI instructions. A defect in the implementation of "multiblock" can cause 7344 OpenSSL's internal write buffer to become incorrectly set to NULL when 7345 using non-blocking IO. Typically, when the user application is using a 7346 socket BIO for writing, this will only result in a failed connection. 7347 However if some other BIO is used then it is likely that a segmentation 7348 fault will be triggered, thus enabling a potential DoS attack. 7349 7350 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 7351 ([CVE-2015-0290]) 7352 7353 *Matt Caswell* 7354 7355 * Segmentation fault in DTLSv1_listen fix 7356 7357 The DTLSv1_listen function is intended to be stateless and processes the 7358 initial ClientHello from many peers. It is common for user code to loop 7359 over the call to DTLSv1_listen until a valid ClientHello is received with 7360 an associated cookie. A defect in the implementation of DTLSv1_listen means 7361 that state is preserved in the SSL object from one invocation to the next 7362 that can lead to a segmentation fault. Errors processing the initial 7363 ClientHello can trigger this scenario. An example of such an error could be 7364 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 7365 server. 7366 7367 This issue was reported to OpenSSL by Per Allansson. 7368 ([CVE-2015-0207]) 7369 7370 *Matt Caswell* 7371 7372 * Segmentation fault in ASN1_TYPE_cmp fix 7373 7374 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7375 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7376 certificate signature algorithm consistency this can be used to crash any 7377 certificate verification operation and exploited in a DoS attack. Any 7378 application which performs certificate verification is vulnerable including 7379 OpenSSL clients and servers which enable client authentication. 7380 ([CVE-2015-0286]) 7381 7382 *Stephen Henson* 7383 7384 * Segmentation fault for invalid PSS parameters fix 7385 7386 The signature verification routines will crash with a NULL pointer 7387 dereference if presented with an ASN.1 signature using the RSA PSS 7388 algorithm and invalid parameters. Since these routines are used to verify 7389 certificate signature algorithms this can be used to crash any 7390 certificate verification operation and exploited in a DoS attack. Any 7391 application which performs certificate verification is vulnerable including 7392 OpenSSL clients and servers which enable client authentication. 7393 7394 This issue was was reported to OpenSSL by Brian Carpenter. 7395 ([CVE-2015-0208]) 7396 7397 *Stephen Henson* 7398 7399 * ASN.1 structure reuse memory corruption fix 7400 7401 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7402 memory corruption via an invalid write. Such reuse is and has been 7403 strongly discouraged and is believed to be rare. 7404 7405 Applications that parse structures containing CHOICE or ANY DEFINED BY 7406 components may be affected. Certificate parsing (d2i_X509 and related 7407 functions) are however not affected. OpenSSL clients and servers are 7408 not affected. 7409 ([CVE-2015-0287]) 7410 7411 *Stephen Henson* 7412 7413 * PKCS7 NULL pointer dereferences fix 7414 7415 The PKCS#7 parsing code does not handle missing outer ContentInfo 7416 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7417 missing content and trigger a NULL pointer dereference on parsing. 7418 7419 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7420 otherwise parse PKCS#7 structures from untrusted sources are 7421 affected. OpenSSL clients and servers are not affected. 7422 7423 This issue was reported to OpenSSL by Michal Zalewski (Google). 7424 ([CVE-2015-0289]) 7425 7426 *Emilia Käsper* 7427 7428 * DoS via reachable assert in SSLv2 servers fix 7429 7430 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7431 servers that both support SSLv2 and enable export cipher suites by sending 7432 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7433 7434 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7435 (OpenSSL development team). 7436 ([CVE-2015-0293]) 7437 7438 *Emilia Käsper* 7439 7440 * Empty CKE with client auth and DHE fix 7441 7442 If client auth is used then a server can seg fault in the event of a DHE 7443 ciphersuite being selected and a zero length ClientKeyExchange message 7444 being sent by the client. This could be exploited in a DoS attack. 7445 ([CVE-2015-1787]) 7446 7447 *Matt Caswell* 7448 7449 * Handshake with unseeded PRNG fix 7450 7451 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 7452 with an unseeded PRNG. The conditions are: 7453 - The client is on a platform where the PRNG has not been seeded 7454 automatically, and the user has not seeded manually 7455 - A protocol specific client method version has been used (i.e. not 7456 SSL_client_methodv23) 7457 - A ciphersuite is used that does not require additional random data from 7458 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 7459 7460 If the handshake succeeds then the client random that has been used will 7461 have been generated from a PRNG with insufficient entropy and therefore the 7462 output may be predictable. 7463 7464 For example using the following command with an unseeded openssl will 7465 succeed on an unpatched platform: 7466 7467 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 7468 ([CVE-2015-0285]) 7469 7470 *Matt Caswell* 7471 7472 * Use After Free following d2i_ECPrivatekey error fix 7473 7474 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7475 could cause a use after free condition. This, in turn, could cause a double 7476 free in several private key parsing functions (such as d2i_PrivateKey 7477 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7478 for applications that receive EC private keys from untrusted 7479 sources. This scenario is considered rare. 7480 7481 This issue was discovered by the BoringSSL project and fixed in their 7482 commit 517073cd4b. 7483 ([CVE-2015-0209]) 7484 7485 *Matt Caswell* 7486 7487 * X509_to_X509_REQ NULL pointer deref fix 7488 7489 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7490 the certificate key is invalid. This function is rarely used in practice. 7491 7492 This issue was discovered by Brian Carpenter. 7493 ([CVE-2015-0288]) 7494 7495 *Stephen Henson* 7496 7497 * Removed the export ciphers from the DEFAULT ciphers 7498 7499 *Kurt Roeckx* 7500 7501### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 7502 7503 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 7504 ARMv5 through ARMv8, as opposite to "locking" it to single one. 7505 So far those who have to target multiple platforms would compromise 7506 and argue that binary targeting say ARMv5 would still execute on 7507 ARMv8. "Universal" build resolves this compromise by providing 7508 near-optimal performance even on newer platforms. 7509 7510 *Andy Polyakov* 7511 7512 * Accelerated NIST P-256 elliptic curve implementation for x86_64 7513 (other platforms pending). 7514 7515 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 7516 7517 * Add support for the SignedCertificateTimestampList certificate and 7518 OCSP response extensions from RFC6962. 7519 7520 *Rob Stradling* 7521 7522 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7523 for corner cases. (Certain input points at infinity could lead to 7524 bogus results, with non-infinity inputs mapped to infinity too.) 7525 7526 *Bodo Moeller* 7527 7528 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 7529 This covers AES, SHA256/512 and GHASH. "Initial" means that most 7530 common cases are optimized and there still is room for further 7531 improvements. Vector Permutation AES for Altivec is also added. 7532 7533 *Andy Polyakov* 7534 7535 * Add support for little-endian ppc64 Linux target. 7536 7537 *Marcelo Cerri (IBM)* 7538 7539 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 7540 SHA1, SHA256 and GHASH. "Initial" means that most common cases 7541 are optimized and there still is room for further improvements. 7542 Both 32- and 64-bit modes are supported. 7543 7544 *Andy Polyakov, Ard Biesheuvel (Linaro)* 7545 7546 * Improved ARMv7 NEON support. 7547 7548 *Andy Polyakov* 7549 7550 * Support for SPARC Architecture 2011 crypto extensions, first 7551 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 7552 SHA256/512, MD5, GHASH and modular exponentiation. 7553 7554 *Andy Polyakov, David Miller* 7555 7556 * Accelerated modular exponentiation for Intel processors, a.k.a. 7557 RSAZ. 7558 7559 *Shay Gueron & Vlad Krasnov (Intel Corp)* 7560 7561 * Support for new and upcoming Intel processors, including AVX2, 7562 BMI and SHA ISA extensions. This includes additional "stitched" 7563 implementations, AESNI-SHA256 and GCM, and multi-buffer support 7564 for TLS encrypt. 7565 7566 This work was sponsored by Intel Corp. 7567 7568 *Andy Polyakov* 7569 7570 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 7571 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 7572 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 7573 7574 *Steve Henson* 7575 7576 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 7577 this fixes a limitation in previous versions of OpenSSL. 7578 7579 *Steve Henson* 7580 7581 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 7582 MGF1 digest and OAEP label. 7583 7584 *Steve Henson* 7585 7586 * Add EVP support for key wrapping algorithms, to avoid problems with 7587 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 7588 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 7589 algorithms and include tests cases. 7590 7591 *Steve Henson* 7592 7593 * Add functions to allocate and set the fields of an ECDSA_METHOD 7594 structure. 7595 7596 *Douglas E. Engert, Steve Henson* 7597 7598 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 7599 difference in days and seconds between two tm or ASN1_TIME structures. 7600 7601 *Steve Henson* 7602 7603 * Add -rev test option to s_server to just reverse order of characters 7604 received by client and send back to server. Also prints an abbreviated 7605 summary of the connection parameters. 7606 7607 *Steve Henson* 7608 7609 * New option -brief for s_client and s_server to print out a brief summary 7610 of connection parameters. 7611 7612 *Steve Henson* 7613 7614 * Add callbacks for arbitrary TLS extensions. 7615 7616 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 7617 7618 * New option -crl_download in several openssl utilities to download CRLs 7619 from CRLDP extension in certificates. 7620 7621 *Steve Henson* 7622 7623 * New options -CRL and -CRLform for s_client and s_server for CRLs. 7624 7625 *Steve Henson* 7626 7627 * New function X509_CRL_diff to generate a delta CRL from the difference 7628 of two full CRLs. Add support to "crl" utility. 7629 7630 *Steve Henson* 7631 7632 * New functions to set lookup_crls function and to retrieve 7633 X509_STORE from X509_STORE_CTX. 7634 7635 *Steve Henson* 7636 7637 * Print out deprecated issuer and subject unique ID fields in 7638 certificates. 7639 7640 *Steve Henson* 7641 7642 * Extend OCSP I/O functions so they can be used for simple general purpose 7643 HTTP as well as OCSP. New wrapper function which can be used to download 7644 CRLs using the OCSP API. 7645 7646 *Steve Henson* 7647 7648 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 7649 7650 *Steve Henson* 7651 7652 * `SSL_CONF*` functions. These provide a common framework for application 7653 configuration using configuration files or command lines. 7654 7655 *Steve Henson* 7656 7657 * SSL/TLS tracing code. This parses out SSL/TLS records using the 7658 message callback and prints the results. Needs compile time option 7659 "enable-ssl-trace". New options to s_client and s_server to enable 7660 tracing. 7661 7662 *Steve Henson* 7663 7664 * New ctrl and macro to retrieve supported points extensions. 7665 Print out extension in s_server and s_client. 7666 7667 *Steve Henson* 7668 7669 * New functions to retrieve certificate signature and signature 7670 OID NID. 7671 7672 *Steve Henson* 7673 7674 * Add functions to retrieve and manipulate the raw cipherlist sent by a 7675 client to OpenSSL. 7676 7677 *Steve Henson* 7678 7679 * New Suite B modes for TLS code. These use and enforce the requirements 7680 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 7681 only use Suite B curves. The Suite B modes can be set by using the 7682 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 7683 7684 *Steve Henson* 7685 7686 * New chain verification flags for Suite B levels of security. Check 7687 algorithms are acceptable when flags are set in X509_verify_cert. 7688 7689 *Steve Henson* 7690 7691 * Make tls1_check_chain return a set of flags indicating checks passed 7692 by a certificate chain. Add additional tests to handle client 7693 certificates: checks for matching certificate type and issuer name 7694 comparison. 7695 7696 *Steve Henson* 7697 7698 * If an attempt is made to use a signature algorithm not in the peer 7699 preference list abort the handshake. If client has no suitable 7700 signature algorithms in response to a certificate request do not 7701 use the certificate. 7702 7703 *Steve Henson* 7704 7705 * If server EC tmp key is not in client preference list abort handshake. 7706 7707 *Steve Henson* 7708 7709 * Add support for certificate stores in CERT structure. This makes it 7710 possible to have different stores per SSL structure or one store in 7711 the parent SSL_CTX. Include distinct stores for certificate chain 7712 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 7713 to build and store a certificate chain in CERT structure: returning 7714 an error if the chain cannot be built: this will allow applications 7715 to test if a chain is correctly configured. 7716 7717 Note: if the CERT based stores are not set then the parent SSL_CTX 7718 store is used to retain compatibility with existing behaviour. 7719 7720 *Steve Henson* 7721 7722 * New function ssl_set_client_disabled to set a ciphersuite disabled 7723 mask based on the current session, check mask when sending client 7724 hello and checking the requested ciphersuite. 7725 7726 *Steve Henson* 7727 7728 * New ctrls to retrieve and set certificate types in a certificate 7729 request message. Print out received values in s_client. If certificate 7730 types is not set with custom values set sensible values based on 7731 supported signature algorithms. 7732 7733 *Steve Henson* 7734 7735 * Support for distinct client and server supported signature algorithms. 7736 7737 *Steve Henson* 7738 7739 * Add certificate callback. If set this is called whenever a certificate 7740 is required by client or server. An application can decide which 7741 certificate chain to present based on arbitrary criteria: for example 7742 supported signature algorithms. Add very simple example to s_server. 7743 This fixes many of the problems and restrictions of the existing client 7744 certificate callback: for example you can now clear an existing 7745 certificate and specify the whole chain. 7746 7747 *Steve Henson* 7748 7749 * Add new "valid_flags" field to CERT_PKEY structure which determines what 7750 the certificate can be used for (if anything). Set valid_flags field 7751 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 7752 to have similar checks in it. 7753 7754 Add new "cert_flags" field to CERT structure and include a "strict mode". 7755 This enforces some TLS certificate requirements (such as only permitting 7756 certificate signature algorithms contained in the supported algorithms 7757 extension) which some implementations ignore: this option should be used 7758 with caution as it could cause interoperability issues. 7759 7760 *Steve Henson* 7761 7762 * Update and tidy signature algorithm extension processing. Work out 7763 shared signature algorithms based on preferences and peer algorithms 7764 and print them out in s_client and s_server. Abort handshake if no 7765 shared signature algorithms. 7766 7767 *Steve Henson* 7768 7769 * Add new functions to allow customised supported signature algorithms 7770 for SSL and SSL_CTX structures. Add options to s_client and s_server 7771 to support them. 7772 7773 *Steve Henson* 7774 7775 * New function SSL_certs_clear() to delete all references to certificates 7776 from an SSL structure. Before this once a certificate had been added 7777 it couldn't be removed. 7778 7779 *Steve Henson* 7780 7781 * Integrate hostname, email address and IP address checking with certificate 7782 verification. New verify options supporting checking in openssl utility. 7783 7784 *Steve Henson* 7785 7786 * Fixes and wildcard matching support to hostname and email checking 7787 functions. Add manual page. 7788 7789 *Florian Weimer (Red Hat Product Security Team)* 7790 7791 * New functions to check a hostname email or IP address against a 7792 certificate. Add options x509 utility to print results of checks against 7793 a certificate. 7794 7795 *Steve Henson* 7796 7797 * Fix OCSP checking. 7798 7799 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 7800 7801 * Initial experimental support for explicitly trusted non-root CAs. 7802 OpenSSL still tries to build a complete chain to a root but if an 7803 intermediate CA has a trust setting included that is used. The first 7804 setting is used: whether to trust (e.g., -addtrust option to the x509 7805 utility) or reject. 7806 7807 *Steve Henson* 7808 7809 * Add -trusted_first option which attempts to find certificates in the 7810 trusted store even if an untrusted chain is also supplied. 7811 7812 *Steve Henson* 7813 7814 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 7815 platform support for Linux and Android. 7816 7817 *Andy Polyakov* 7818 7819 * Support for linux-x32, ILP32 environment in x86_64 framework. 7820 7821 *Andy Polyakov* 7822 7823 * Experimental multi-implementation support for FIPS capable OpenSSL. 7824 When in FIPS mode the approved implementations are used as normal, 7825 when not in FIPS mode the internal unapproved versions are used instead. 7826 This means that the FIPS capable OpenSSL isn't forced to use the 7827 (often lower performance) FIPS implementations outside FIPS mode. 7828 7829 *Steve Henson* 7830 7831 * Transparently support X9.42 DH parameters when calling 7832 PEM_read_bio_DHparameters. This means existing applications can handle 7833 the new parameter format automatically. 7834 7835 *Steve Henson* 7836 7837 * Initial experimental support for X9.42 DH parameter format: mainly 7838 to support use of 'q' parameter for RFC5114 parameters. 7839 7840 *Steve Henson* 7841 7842 * Add DH parameters from RFC5114 including test data to dhtest. 7843 7844 *Steve Henson* 7845 7846 * Support for automatic EC temporary key parameter selection. If enabled 7847 the most preferred EC parameters are automatically used instead of 7848 hardcoded fixed parameters. Now a server just has to call: 7849 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 7850 support ECDH and use the most appropriate parameters. 7851 7852 *Steve Henson* 7853 7854 * Enhance and tidy EC curve and point format TLS extension code. Use 7855 static structures instead of allocation if default values are used. 7856 New ctrls to set curves we wish to support and to retrieve shared curves. 7857 Print out shared curves in s_server. New options to s_server and s_client 7858 to set list of supported curves. 7859 7860 *Steve Henson* 7861 7862 * New ctrls to retrieve supported signature algorithms and 7863 supported curve values as an array of NIDs. Extend openssl utility 7864 to print out received values. 7865 7866 *Steve Henson* 7867 7868 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 7869 between NIDs and the more common NIST names such as "P-256". Enhance 7870 ecparam utility and ECC method to recognise the NIST names for curves. 7871 7872 *Steve Henson* 7873 7874 * Enhance SSL/TLS certificate chain handling to support different 7875 chains for each certificate instead of one chain in the parent SSL_CTX. 7876 7877 *Steve Henson* 7878 7879 * Support for fixed DH ciphersuite client authentication: where both 7880 server and client use DH certificates with common parameters. 7881 7882 *Steve Henson* 7883 7884 * Support for fixed DH ciphersuites: those requiring DH server 7885 certificates. 7886 7887 *Steve Henson* 7888 7889 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 7890 the certificate. 7891 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 7892 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 7893 X509_CINF_get_signature were reverted post internal team review. 7894 7895OpenSSL 1.0.1 7896------------- 7897 7898### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 7899 7900 * OCSP Status Request extension unbounded memory growth 7901 7902 A malicious client can send an excessively large OCSP Status Request 7903 extension. If that client continually requests renegotiation, sending a 7904 large OCSP Status Request extension each time, then there will be unbounded 7905 memory growth on the server. This will eventually lead to a Denial Of 7906 Service attack through memory exhaustion. Servers with a default 7907 configuration are vulnerable even if they do not support OCSP. Builds using 7908 the "no-ocsp" build time option are not affected. 7909 7910 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7911 ([CVE-2016-6304]) 7912 7913 *Matt Caswell* 7914 7915 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 7916 HIGH to MEDIUM. 7917 7918 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 7919 Leurent (INRIA) 7920 ([CVE-2016-2183]) 7921 7922 *Rich Salz* 7923 7924 * OOB write in MDC2_Update() 7925 7926 An overflow can occur in MDC2_Update() either if called directly or 7927 through the EVP_DigestUpdate() function using MDC2. If an attacker 7928 is able to supply very large amounts of input data after a previous 7929 call to EVP_EncryptUpdate() with a partial block then a length check 7930 can overflow resulting in a heap corruption. 7931 7932 The amount of data needed is comparable to SIZE_MAX which is impractical 7933 on most platforms. 7934 7935 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7936 ([CVE-2016-6303]) 7937 7938 *Stephen Henson* 7939 7940 * Malformed SHA512 ticket DoS 7941 7942 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 7943 DoS attack where a malformed ticket will result in an OOB read which will 7944 ultimately crash. 7945 7946 The use of SHA512 in TLS session tickets is comparatively rare as it requires 7947 a custom server callback and ticket lookup mechanism. 7948 7949 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7950 ([CVE-2016-6302]) 7951 7952 *Stephen Henson* 7953 7954 * OOB write in BN_bn2dec() 7955 7956 The function BN_bn2dec() does not check the return value of BN_div_word(). 7957 This can cause an OOB write if an application uses this function with an 7958 overly large BIGNUM. This could be a problem if an overly large certificate 7959 or CRL is printed out from an untrusted source. TLS is not affected because 7960 record limits will reject an oversized certificate before it is parsed. 7961 7962 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7963 ([CVE-2016-2182]) 7964 7965 *Stephen Henson* 7966 7967 * OOB read in TS_OBJ_print_bio() 7968 7969 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 7970 the total length the OID text representation would use and not the amount 7971 of data written. This will result in OOB reads when large OIDs are 7972 presented. 7973 7974 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7975 ([CVE-2016-2180]) 7976 7977 *Stephen Henson* 7978 7979 * Pointer arithmetic undefined behaviour 7980 7981 Avoid some undefined pointer arithmetic 7982 7983 A common idiom in the codebase is to check limits in the following manner: 7984 "p + len > limit" 7985 7986 Where "p" points to some malloc'd data of SIZE bytes and 7987 limit == p + SIZE 7988 7989 "len" here could be from some externally supplied data (e.g. from a TLS 7990 message). 7991 7992 The rules of C pointer arithmetic are such that "p + len" is only well 7993 defined where len <= SIZE. Therefore, the above idiom is actually 7994 undefined behaviour. 7995 7996 For example this could cause problems if some malloc implementation 7997 provides an address for "p" such that "p + len" actually overflows for 7998 values of len that are too big and therefore p + len < limit. 7999 8000 This issue was reported to OpenSSL by Guido Vranken 8001 ([CVE-2016-2177]) 8002 8003 *Matt Caswell* 8004 8005 * Constant time flag not preserved in DSA signing 8006 8007 Operations in the DSA signing algorithm should run in constant time in 8008 order to avoid side channel attacks. A flaw in the OpenSSL DSA 8009 implementation means that a non-constant time codepath is followed for 8010 certain operations. This has been demonstrated through a cache-timing 8011 attack to be sufficient for an attacker to recover the private DSA key. 8012 8013 This issue was reported by César Pereida (Aalto University), Billy Brumley 8014 (Tampere University of Technology), and Yuval Yarom (The University of 8015 Adelaide and NICTA). 8016 ([CVE-2016-2178]) 8017 8018 *César Pereida* 8019 8020 * DTLS buffered message DoS 8021 8022 In a DTLS connection where handshake messages are delivered out-of-order 8023 those messages that OpenSSL is not yet ready to process will be buffered 8024 for later use. Under certain circumstances, a flaw in the logic means that 8025 those messages do not get removed from the buffer even though the handshake 8026 has been completed. An attacker could force up to approx. 15 messages to 8027 remain in the buffer when they are no longer required. These messages will 8028 be cleared when the DTLS connection is closed. The default maximum size for 8029 a message is 100k. Therefore, the attacker could force an additional 1500k 8030 to be consumed per connection. By opening many simultaneous connections an 8031 attacker could cause a DoS attack through memory exhaustion. 8032 8033 This issue was reported to OpenSSL by Quan Luo. 8034 ([CVE-2016-2179]) 8035 8036 *Matt Caswell* 8037 8038 * DTLS replay protection DoS 8039 8040 A flaw in the DTLS replay attack protection mechanism means that records 8041 that arrive for future epochs update the replay protection "window" before 8042 the MAC for the record has been validated. This could be exploited by an 8043 attacker by sending a record for the next epoch (which does not have to 8044 decrypt or have a valid MAC), with a very large sequence number. This means 8045 that all subsequent legitimate packets are dropped causing a denial of 8046 service for a specific DTLS connection. 8047 8048 This issue was reported to OpenSSL by the OCAP audit team. 8049 ([CVE-2016-2181]) 8050 8051 *Matt Caswell* 8052 8053 * Certificate message OOB reads 8054 8055 In OpenSSL 1.0.2 and earlier some missing message length checks can result 8056 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 8057 theoretical DoS risk but this has not been observed in practice on common 8058 platforms. 8059 8060 The messages affected are client certificate, client certificate request 8061 and server certificate. As a result the attack can only be performed 8062 against a client or a server which enables client authentication. 8063 8064 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 8065 ([CVE-2016-6306]) 8066 8067 *Stephen Henson* 8068 8069### Changes between 1.0.1s and 1.0.1t [3 May 2016] 8070 8071 * Prevent padding oracle in AES-NI CBC MAC check 8072 8073 A MITM attacker can use a padding oracle attack to decrypt traffic 8074 when the connection uses an AES CBC cipher and the server support 8075 AES-NI. 8076 8077 This issue was introduced as part of the fix for Lucky 13 padding 8078 attack ([CVE-2013-0169]). The padding check was rewritten to be in 8079 constant time by making sure that always the same bytes are read and 8080 compared against either the MAC or padding bytes. But it no longer 8081 checked that there was enough data to have both the MAC and padding 8082 bytes. 8083 8084 This issue was reported by Juraj Somorovsky using TLS-Attacker. 8085 ([CVE-2016-2107]) 8086 8087 *Kurt Roeckx* 8088 8089 * Fix EVP_EncodeUpdate overflow 8090 8091 An overflow can occur in the EVP_EncodeUpdate() function which is used for 8092 Base64 encoding of binary data. If an attacker is able to supply very large 8093 amounts of input data then a length check can overflow resulting in a heap 8094 corruption. 8095 8096 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 8097 the `PEM_write_bio*` family of functions. These are mainly used within the 8098 OpenSSL command line applications, so any application which processes data 8099 from an untrusted source and outputs it as a PEM file should be considered 8100 vulnerable to this issue. User applications that call these APIs directly 8101 with large amounts of untrusted data may also be vulnerable. 8102 8103 This issue was reported by Guido Vranken. 8104 ([CVE-2016-2105]) 8105 8106 *Matt Caswell* 8107 8108 * Fix EVP_EncryptUpdate overflow 8109 8110 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 8111 is able to supply very large amounts of input data after a previous call to 8112 EVP_EncryptUpdate() with a partial block then a length check can overflow 8113 resulting in a heap corruption. Following an analysis of all OpenSSL 8114 internal usage of the EVP_EncryptUpdate() function all usage is one of two 8115 forms. The first form is where the EVP_EncryptUpdate() call is known to be 8116 the first called function after an EVP_EncryptInit(), and therefore that 8117 specific call must be safe. The second form is where the length passed to 8118 EVP_EncryptUpdate() can be seen from the code to be some small value and 8119 therefore there is no possibility of an overflow. Since all instances are 8120 one of these two forms, it is believed that there can be no overflows in 8121 internal code due to this problem. It should be noted that 8122 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 8123 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 8124 of these calls have also been analysed too and it is believed there are no 8125 instances in internal usage where an overflow could occur. 8126 8127 This issue was reported by Guido Vranken. 8128 ([CVE-2016-2106]) 8129 8130 *Matt Caswell* 8131 8132 * Prevent ASN.1 BIO excessive memory allocation 8133 8134 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 8135 a short invalid encoding can casuse allocation of large amounts of memory 8136 potentially consuming excessive resources or exhausting memory. 8137 8138 Any application parsing untrusted data through d2i BIO functions is 8139 affected. The memory based functions such as d2i_X509() are *not* affected. 8140 Since the memory based functions are used by the TLS library, TLS 8141 applications are not affected. 8142 8143 This issue was reported by Brian Carpenter. 8144 ([CVE-2016-2109]) 8145 8146 *Stephen Henson* 8147 8148 * EBCDIC overread 8149 8150 ASN1 Strings that are over 1024 bytes can cause an overread in applications 8151 using the X509_NAME_oneline() function on EBCDIC systems. This could result 8152 in arbitrary stack data being returned in the buffer. 8153 8154 This issue was reported by Guido Vranken. 8155 ([CVE-2016-2176]) 8156 8157 *Matt Caswell* 8158 8159 * Modify behavior of ALPN to invoke callback after SNI/servername 8160 callback, such that updates to the SSL_CTX affect ALPN. 8161 8162 *Todd Short* 8163 8164 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 8165 default. 8166 8167 *Kurt Roeckx* 8168 8169 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 8170 methods are enabled and ssl2 is disabled the methods return NULL. 8171 8172 *Kurt Roeckx* 8173 8174### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 8175 8176* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 8177 Builds that are not configured with "enable-weak-ssl-ciphers" will not 8178 provide any "EXPORT" or "LOW" strength ciphers. 8179 8180 *Viktor Dukhovni* 8181 8182* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 8183 is by default disabled at build-time. Builds that are not configured with 8184 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 8185 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 8186 will need to explicitly call either of: 8187 8188 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 8189 or 8190 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 8191 8192 as appropriate. Even if either of those is used, or the application 8193 explicitly uses the version-specific SSLv2_method() or its client and 8194 server variants, SSLv2 ciphers vulnerable to exhaustive search key 8195 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 8196 ciphers, and SSLv2 56-bit DES are no longer available. 8197 ([CVE-2016-0800]) 8198 8199 *Viktor Dukhovni* 8200 8201 * Fix a double-free in DSA code 8202 8203 A double free bug was discovered when OpenSSL parses malformed DSA private 8204 keys and could lead to a DoS attack or memory corruption for applications 8205 that receive DSA private keys from untrusted sources. This scenario is 8206 considered rare. 8207 8208 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 8209 libFuzzer. 8210 ([CVE-2016-0705]) 8211 8212 *Stephen Henson* 8213 8214 * Disable SRP fake user seed to address a server memory leak. 8215 8216 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 8217 8218 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 8219 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 8220 was changed to ignore the "fake user" SRP seed, even if the seed 8221 is configured. 8222 8223 Users should use SRP_VBASE_get1_by_user instead. Note that in 8224 SRP_VBASE_get1_by_user, caller must free the returned value. Note 8225 also that even though configuring the SRP seed attempts to hide 8226 invalid usernames by continuing the handshake with fake 8227 credentials, this behaviour is not constant time and no strong 8228 guarantees are made that the handshake is indistinguishable from 8229 that of a valid user. 8230 ([CVE-2016-0798]) 8231 8232 *Emilia Käsper* 8233 8234 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 8235 8236 In the BN_hex2bn function the number of hex digits is calculated using an 8237 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 8238 large values of `i` this can result in `bn_expand` not allocating any 8239 memory because `i * 4` is negative. This can leave the internal BIGNUM data 8240 field as NULL leading to a subsequent NULL ptr deref. For very large values 8241 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 8242 In this case memory is allocated to the internal BIGNUM data field, but it 8243 is insufficiently sized leading to heap corruption. A similar issue exists 8244 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 8245 is ever called by user applications with very large untrusted hex/dec data. 8246 This is anticipated to be a rare occurrence. 8247 8248 All OpenSSL internal usage of these functions use data that is not expected 8249 to be untrusted, e.g. config file data or application command line 8250 arguments. If user developed applications generate config file data based 8251 on untrusted data then it is possible that this could also lead to security 8252 consequences. This is also anticipated to be rare. 8253 8254 This issue was reported to OpenSSL by Guido Vranken. 8255 ([CVE-2016-0797]) 8256 8257 *Matt Caswell* 8258 8259 * Fix memory issues in `BIO_*printf` functions 8260 8261 The internal `fmtstr` function used in processing a "%s" format string in 8262 the `BIO_*printf` functions could overflow while calculating the length of a 8263 string and cause an OOB read when printing very long strings. 8264 8265 Additionally the internal `doapr_outch` function can attempt to write to an 8266 OOB memory location (at an offset from the NULL pointer) in the event of a 8267 memory allocation failure. In 1.0.2 and below this could be caused where 8268 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 8269 could be in processing a very long "%s" format string. Memory leaks can 8270 also occur. 8271 8272 The first issue may mask the second issue dependent on compiler behaviour. 8273 These problems could enable attacks where large amounts of untrusted data 8274 is passed to the `BIO_*printf` functions. If applications use these functions 8275 in this way then they could be vulnerable. OpenSSL itself uses these 8276 functions when printing out human-readable dumps of ASN.1 data. Therefore 8277 applications that print this data could be vulnerable if the data is from 8278 untrusted sources. OpenSSL command line applications could also be 8279 vulnerable where they print out ASN.1 data, or if untrusted data is passed 8280 as command line arguments. 8281 8282 Libssl is not considered directly vulnerable. Additionally certificates etc 8283 received via remote connections via libssl are also unlikely to be able to 8284 trigger these issues because of message size limits enforced within libssl. 8285 8286 This issue was reported to OpenSSL Guido Vranken. 8287 ([CVE-2016-0799]) 8288 8289 *Matt Caswell* 8290 8291 * Side channel attack on modular exponentiation 8292 8293 A side-channel attack was found which makes use of cache-bank conflicts on 8294 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 8295 of RSA keys. The ability to exploit this issue is limited as it relies on 8296 an attacker who has control of code in a thread running on the same 8297 hyper-threaded core as the victim thread which is performing decryptions. 8298 8299 This issue was reported to OpenSSL by Yuval Yarom, The University of 8300 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 8301 Nadia Heninger, University of Pennsylvania with more information at 8302 <http://cachebleed.info>. 8303 ([CVE-2016-0702]) 8304 8305 *Andy Polyakov* 8306 8307 * Change the req command to generate a 2048-bit RSA/DSA key by default, 8308 if no keysize is specified with default_bits. This fixes an 8309 omission in an earlier change that changed all RSA/DSA key generation 8310 commands to use 2048 bits by default. 8311 8312 *Emilia Käsper* 8313 8314### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 8315 8316 * Protection for DH small subgroup attacks 8317 8318 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 8319 switched on by default and cannot be disabled. This could have some 8320 performance impact. 8321 8322 *Matt Caswell* 8323 8324 * SSLv2 doesn't block disabled ciphers 8325 8326 A malicious client can negotiate SSLv2 ciphers that have been disabled on 8327 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 8328 been disabled, provided that the SSLv2 protocol was not also disabled via 8329 SSL_OP_NO_SSLv2. 8330 8331 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 8332 and Sebastian Schinzel. 8333 ([CVE-2015-3197]) 8334 8335 *Viktor Dukhovni* 8336 8337 * Reject DH handshakes with parameters shorter than 1024 bits. 8338 8339 *Kurt Roeckx* 8340 8341### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 8342 8343 * Certificate verify crash with missing PSS parameter 8344 8345 The signature verification routines will crash with a NULL pointer 8346 dereference if presented with an ASN.1 signature using the RSA PSS 8347 algorithm and absent mask generation function parameter. Since these 8348 routines are used to verify certificate signature algorithms this can be 8349 used to crash any certificate verification operation and exploited in a 8350 DoS attack. Any application which performs certificate verification is 8351 vulnerable including OpenSSL clients and servers which enable client 8352 authentication. 8353 8354 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 8355 ([CVE-2015-3194]) 8356 8357 *Stephen Henson* 8358 8359 * X509_ATTRIBUTE memory leak 8360 8361 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8362 memory. This structure is used by the PKCS#7 and CMS routines so any 8363 application which reads PKCS#7 or CMS data from untrusted sources is 8364 affected. SSL/TLS is not affected. 8365 8366 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8367 libFuzzer. 8368 ([CVE-2015-3195]) 8369 8370 *Stephen Henson* 8371 8372 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 8373 This changes the decoding behaviour for some invalid messages, 8374 though the change is mostly in the more lenient direction, and 8375 legacy behaviour is preserved as much as possible. 8376 8377 *Emilia Käsper* 8378 8379 * In DSA_generate_parameters_ex, if the provided seed is too short, 8380 use a random seed, as already documented. 8381 8382 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 8383 8384### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 8385 8386 * Alternate chains certificate forgery 8387 8388 During certificate verification, OpenSSL will attempt to find an 8389 alternative certificate chain if the first attempt to build such a chain 8390 fails. An error in the implementation of this logic can mean that an 8391 attacker could cause certain checks on untrusted certificates to be 8392 bypassed, such as the CA flag, enabling them to use a valid leaf 8393 certificate to act as a CA and "issue" an invalid certificate. 8394 8395 This issue was reported to OpenSSL by Adam Langley/David Benjamin 8396 (Google/BoringSSL). 8397 ([CVE-2015-1793]) 8398 8399 *Matt Caswell* 8400 8401 * Race condition handling PSK identify hint 8402 8403 If PSK identity hints are received by a multi-threaded client then 8404 the values are wrongly updated in the parent SSL_CTX structure. This can 8405 result in a race condition potentially leading to a double free of the 8406 identify hint data. 8407 ([CVE-2015-3196]) 8408 8409 *Stephen Henson* 8410 8411### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 8412 8413 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 8414 incompatibility in the handling of HMAC. The previous ABI has now been 8415 restored. 8416 8417### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 8418 8419 * Malformed ECParameters causes infinite loop 8420 8421 When processing an ECParameters structure OpenSSL enters an infinite loop 8422 if the curve specified is over a specially malformed binary polynomial 8423 field. 8424 8425 This can be used to perform denial of service against any 8426 system which processes public keys, certificate requests or 8427 certificates. This includes TLS clients and TLS servers with 8428 client authentication enabled. 8429 8430 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8431 ([CVE-2015-1788]) 8432 8433 *Andy Polyakov* 8434 8435 * Exploitable out-of-bounds read in X509_cmp_time 8436 8437 X509_cmp_time does not properly check the length of the ASN1_TIME 8438 string and can read a few bytes out of bounds. In addition, 8439 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8440 time string. 8441 8442 An attacker can use this to craft malformed certificates and CRLs of 8443 various sizes and potentially cause a segmentation fault, resulting in 8444 a DoS on applications that verify certificates or CRLs. TLS clients 8445 that verify CRLs are affected. TLS clients and servers with client 8446 authentication enabled may be affected if they use custom verification 8447 callbacks. 8448 8449 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8450 independently by Hanno Böck. 8451 ([CVE-2015-1789]) 8452 8453 *Emilia Käsper* 8454 8455 * PKCS7 crash with missing EnvelopedContent 8456 8457 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8458 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8459 with missing content and trigger a NULL pointer dereference on parsing. 8460 8461 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8462 structures from untrusted sources are affected. OpenSSL clients and 8463 servers are not affected. 8464 8465 This issue was reported to OpenSSL by Michal Zalewski (Google). 8466 ([CVE-2015-1790]) 8467 8468 *Emilia Käsper* 8469 8470 * CMS verify infinite loop with unknown hash function 8471 8472 When verifying a signedData message the CMS code can enter an infinite loop 8473 if presented with an unknown hash function OID. This can be used to perform 8474 denial of service against any system which verifies signedData messages using 8475 the CMS code. 8476 This issue was reported to OpenSSL by Johannes Bauer. 8477 ([CVE-2015-1792]) 8478 8479 *Stephen Henson* 8480 8481 * Race condition handling NewSessionTicket 8482 8483 If a NewSessionTicket is received by a multi-threaded client when attempting to 8484 reuse a previous ticket then a race condition can occur potentially leading to 8485 a double free of the ticket data. 8486 ([CVE-2015-1791]) 8487 8488 *Matt Caswell* 8489 8490 * Reject DH handshakes with parameters shorter than 768 bits. 8491 8492 *Kurt Roeckx and Emilia Kasper* 8493 8494 * dhparam: generate 2048-bit parameters by default. 8495 8496 *Kurt Roeckx and Emilia Kasper* 8497 8498### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 8499 8500 * Segmentation fault in ASN1_TYPE_cmp fix 8501 8502 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8503 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8504 certificate signature algorithm consistency this can be used to crash any 8505 certificate verification operation and exploited in a DoS attack. Any 8506 application which performs certificate verification is vulnerable including 8507 OpenSSL clients and servers which enable client authentication. 8508 ([CVE-2015-0286]) 8509 8510 *Stephen Henson* 8511 8512 * ASN.1 structure reuse memory corruption fix 8513 8514 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8515 memory corruption via an invalid write. Such reuse is and has been 8516 strongly discouraged and is believed to be rare. 8517 8518 Applications that parse structures containing CHOICE or ANY DEFINED BY 8519 components may be affected. Certificate parsing (d2i_X509 and related 8520 functions) are however not affected. OpenSSL clients and servers are 8521 not affected. 8522 ([CVE-2015-0287]) 8523 8524 *Stephen Henson* 8525 8526 * PKCS7 NULL pointer dereferences fix 8527 8528 The PKCS#7 parsing code does not handle missing outer ContentInfo 8529 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8530 missing content and trigger a NULL pointer dereference on parsing. 8531 8532 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8533 otherwise parse PKCS#7 structures from untrusted sources are 8534 affected. OpenSSL clients and servers are not affected. 8535 8536 This issue was reported to OpenSSL by Michal Zalewski (Google). 8537 ([CVE-2015-0289]) 8538 8539 *Emilia Käsper* 8540 8541 * DoS via reachable assert in SSLv2 servers fix 8542 8543 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8544 servers that both support SSLv2 and enable export cipher suites by sending 8545 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8546 8547 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8548 (OpenSSL development team). 8549 ([CVE-2015-0293]) 8550 8551 *Emilia Käsper* 8552 8553 * Use After Free following d2i_ECPrivatekey error fix 8554 8555 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8556 could cause a use after free condition. This, in turn, could cause a double 8557 free in several private key parsing functions (such as d2i_PrivateKey 8558 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8559 for applications that receive EC private keys from untrusted 8560 sources. This scenario is considered rare. 8561 8562 This issue was discovered by the BoringSSL project and fixed in their 8563 commit 517073cd4b. 8564 ([CVE-2015-0209]) 8565 8566 *Matt Caswell* 8567 8568 * X509_to_X509_REQ NULL pointer deref fix 8569 8570 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8571 the certificate key is invalid. This function is rarely used in practice. 8572 8573 This issue was discovered by Brian Carpenter. 8574 ([CVE-2015-0288]) 8575 8576 *Stephen Henson* 8577 8578 * Removed the export ciphers from the DEFAULT ciphers 8579 8580 *Kurt Roeckx* 8581 8582### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 8583 8584 * Build fixes for the Windows and OpenVMS platforms 8585 8586 *Matt Caswell and Richard Levitte* 8587 8588### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 8589 8590 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8591 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8592 dereference. This could lead to a Denial Of Service attack. Thanks to 8593 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8594 ([CVE-2014-3571]) 8595 8596 *Steve Henson* 8597 8598 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8599 dtls1_buffer_record function under certain conditions. In particular this 8600 could occur if an attacker sent repeated DTLS records with the same 8601 sequence number but for the next epoch. The memory leak could be exploited 8602 by an attacker in a Denial of Service attack through memory exhaustion. 8603 Thanks to Chris Mueller for reporting this issue. 8604 ([CVE-2015-0206]) 8605 8606 *Matt Caswell* 8607 8608 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8609 built with the no-ssl3 option and an SSL v3 ClientHello is received the ssl 8610 method would be set to NULL which could later result in a NULL pointer 8611 dereference. Thanks to Frank Schmirler for reporting this issue. 8612 ([CVE-2014-3569]) 8613 8614 *Kurt Roeckx* 8615 8616 * Abort handshake if server key exchange message is omitted for ephemeral 8617 ECDH ciphersuites. 8618 8619 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8620 reporting this issue. 8621 ([CVE-2014-3572]) 8622 8623 *Steve Henson* 8624 8625 * Remove non-export ephemeral RSA code on client and server. This code 8626 violated the TLS standard by allowing the use of temporary RSA keys in 8627 non-export ciphersuites and could be used by a server to effectively 8628 downgrade the RSA key length used to a value smaller than the server 8629 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8630 INRIA or reporting this issue. 8631 ([CVE-2015-0204]) 8632 8633 *Steve Henson* 8634 8635 * Fixed issue where DH client certificates are accepted without verification. 8636 An OpenSSL server will accept a DH certificate for client authentication 8637 without the certificate verify message. This effectively allows a client to 8638 authenticate without the use of a private key. This only affects servers 8639 which trust a client certificate authority which issues certificates 8640 containing DH keys: these are extremely rare and hardly ever encountered. 8641 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8642 this issue. 8643 ([CVE-2015-0205]) 8644 8645 *Steve Henson* 8646 8647 * Ensure that the session ID context of an SSL is updated when its 8648 SSL_CTX is updated via SSL_set_SSL_CTX. 8649 8650 The session ID context is typically set from the parent SSL_CTX, 8651 and can vary with the CTX. 8652 8653 *Adam Langley* 8654 8655 * Fix various certificate fingerprint issues. 8656 8657 By using non-DER or invalid encodings outside the signed portion of a 8658 certificate the fingerprint can be changed without breaking the signature. 8659 Although no details of the signed portion of the certificate can be changed 8660 this can cause problems with some applications: e.g. those using the 8661 certificate fingerprint for blacklists. 8662 8663 1. Reject signatures with non zero unused bits. 8664 8665 If the BIT STRING containing the signature has non zero unused bits reject 8666 the signature. All current signature algorithms require zero unused bits. 8667 8668 2. Check certificate algorithm consistency. 8669 8670 Check the AlgorithmIdentifier inside TBS matches the one in the 8671 certificate signature. NB: this will result in signature failure 8672 errors for some broken certificates. 8673 8674 Thanks to Konrad Kraszewski from Google for reporting this issue. 8675 8676 3. Check DSA/ECDSA signatures use DER. 8677 8678 Re-encode DSA/ECDSA signatures and compare with the original received 8679 signature. Return an error if there is a mismatch. 8680 8681 This will reject various cases including garbage after signature 8682 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8683 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8684 (negative or with leading zeroes). 8685 8686 Further analysis was conducted and fixes were developed by Stephen Henson 8687 of the OpenSSL core team. 8688 8689 ([CVE-2014-8275]) 8690 8691 *Steve Henson* 8692 8693 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8694 results on some platforms, including x86_64. This bug occurs at random 8695 with a very low probability, and is not known to be exploitable in any 8696 way, though its exact impact is difficult to determine. Thanks to Pieter 8697 Wuille (Blockstream) who reported this issue and also suggested an initial 8698 fix. Further analysis was conducted by the OpenSSL development team and 8699 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8700 the OpenSSL core team. 8701 ([CVE-2014-3570]) 8702 8703 *Andy Polyakov* 8704 8705 * Do not resume sessions on the server if the negotiated protocol 8706 version does not match the session's version. Resuming with a different 8707 version, while not strictly forbidden by the RFC, is of questionable 8708 sanity and breaks all known clients. 8709 8710 *David Benjamin, Emilia Käsper* 8711 8712 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 8713 early CCS messages during renegotiation. (Note that because 8714 renegotiation is encrypted, this early CCS was not exploitable.) 8715 8716 *Emilia Käsper* 8717 8718 * Tighten client-side session ticket handling during renegotiation: 8719 ensure that the client only accepts a session ticket if the server sends 8720 the extension anew in the ServerHello. Previously, a TLS client would 8721 reuse the old extension state and thus accept a session ticket if one was 8722 announced in the initial ServerHello. 8723 8724 Similarly, ensure that the client requires a session ticket if one 8725 was advertised in the ServerHello. Previously, a TLS client would 8726 ignore a missing NewSessionTicket message. 8727 8728 *Emilia Käsper* 8729 8730### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 8731 8732 * SRTP Memory Leak. 8733 8734 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 8735 sends a carefully crafted handshake message, to cause OpenSSL to fail 8736 to free up to 64k of memory causing a memory leak. This could be 8737 exploited in a Denial Of Service attack. This issue affects OpenSSL 8738 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 8739 whether SRTP is used or configured. Implementations of OpenSSL that 8740 have been compiled with OPENSSL_NO_SRTP defined are not affected. 8741 8742 The fix was developed by the OpenSSL team. 8743 ([CVE-2014-3513]) 8744 8745 *OpenSSL team* 8746 8747 * Session Ticket Memory Leak. 8748 8749 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8750 integrity of that ticket is first verified. In the event of a session 8751 ticket integrity check failing, OpenSSL will fail to free memory 8752 causing a memory leak. By sending a large number of invalid session 8753 tickets an attacker could exploit this issue in a Denial Of Service 8754 attack. 8755 ([CVE-2014-3567]) 8756 8757 *Steve Henson* 8758 8759 * Build option no-ssl3 is incomplete. 8760 8761 When OpenSSL is configured with "no-ssl3" as a build option, servers 8762 could accept and complete an SSL 3.0 handshake, and clients could be 8763 configured to send them. 8764 ([CVE-2014-3568]) 8765 8766 *Akamai and the OpenSSL team* 8767 8768 * Add support for TLS_FALLBACK_SCSV. 8769 Client applications doing fallback retries should call 8770 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8771 ([CVE-2014-3566]) 8772 8773 *Adam Langley, Bodo Moeller* 8774 8775 * Add additional DigestInfo checks. 8776 8777 Re-encode DigestInto in DER and check against the original when 8778 verifying RSA signature: this will reject any improperly encoded 8779 DigestInfo structures. 8780 8781 Note: this is a precautionary measure and no attacks are currently known. 8782 8783 *Steve Henson* 8784 8785### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 8786 8787 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 8788 SRP code can be overrun an internal buffer. Add sanity check that 8789 g, A, B < N to SRP code. 8790 8791 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 8792 Group for discovering this issue. 8793 ([CVE-2014-3512]) 8794 8795 *Steve Henson* 8796 8797 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 8798 TLS 1.0 instead of higher protocol versions when the ClientHello message 8799 is badly fragmented. This allows a man-in-the-middle attacker to force a 8800 downgrade to TLS 1.0 even if both the server and the client support a 8801 higher protocol version, by modifying the client's TLS records. 8802 8803 Thanks to David Benjamin and Adam Langley (Google) for discovering and 8804 researching this issue. 8805 ([CVE-2014-3511]) 8806 8807 *David Benjamin* 8808 8809 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8810 to a denial of service attack. A malicious server can crash the client 8811 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8812 ciphersuite and sending carefully crafted handshake messages. 8813 8814 Thanks to Felix Gröbert (Google) for discovering and researching this 8815 issue. 8816 ([CVE-2014-3510]) 8817 8818 *Emilia Käsper* 8819 8820 * By sending carefully crafted DTLS packets an attacker could cause openssl 8821 to leak memory. This can be exploited through a Denial of Service attack. 8822 Thanks to Adam Langley for discovering and researching this issue. 8823 ([CVE-2014-3507]) 8824 8825 *Adam Langley* 8826 8827 * An attacker can force openssl to consume large amounts of memory whilst 8828 processing DTLS handshake messages. This can be exploited through a 8829 Denial of Service attack. 8830 Thanks to Adam Langley for discovering and researching this issue. 8831 ([CVE-2014-3506]) 8832 8833 *Adam Langley* 8834 8835 * An attacker can force an error condition which causes openssl to crash 8836 whilst processing DTLS packets due to memory being freed twice. This 8837 can be exploited through a Denial of Service attack. 8838 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8839 this issue. 8840 ([CVE-2014-3505]) 8841 8842 *Adam Langley* 8843 8844 * If a multithreaded client connects to a malicious server using a resumed 8845 session and the server sends an ec point format extension it could write 8846 up to 255 bytes to freed memory. 8847 8848 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8849 issue. 8850 ([CVE-2014-3509]) 8851 8852 *Gabor Tyukasz* 8853 8854 * A malicious server can crash an OpenSSL client with a null pointer 8855 dereference (read) by specifying an SRP ciphersuite even though it was not 8856 properly negotiated with the client. This can be exploited through a 8857 Denial of Service attack. 8858 8859 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 8860 discovering and researching this issue. 8861 ([CVE-2014-5139]) 8862 8863 *Steve Henson* 8864 8865 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8866 X509_name_oneline, X509_name_print_ex et al. to leak some information 8867 from the stack. Applications may be affected if they echo pretty printing 8868 output to the attacker. 8869 8870 Thanks to Ivan Fratric (Google) for discovering this issue. 8871 ([CVE-2014-3508]) 8872 8873 *Emilia Käsper, and Steve Henson* 8874 8875 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8876 for corner cases. (Certain input points at infinity could lead to 8877 bogus results, with non-infinity inputs mapped to infinity too.) 8878 8879 *Bodo Moeller* 8880 8881### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 8882 8883 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8884 handshake can force the use of weak keying material in OpenSSL 8885 SSL/TLS clients and servers. 8886 8887 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8888 researching this issue. ([CVE-2014-0224]) 8889 8890 *KIKUCHI Masashi, Steve Henson* 8891 8892 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8893 OpenSSL DTLS client the code can be made to recurse eventually crashing 8894 in a DoS attack. 8895 8896 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8897 ([CVE-2014-0221]) 8898 8899 *Imre Rad, Steve Henson* 8900 8901 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8902 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8903 client or server. This is potentially exploitable to run arbitrary 8904 code on a vulnerable client or server. 8905 8906 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8907 8908 *Jüri Aedla, Steve Henson* 8909 8910 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8911 are subject to a denial of service attack. 8912 8913 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8914 this issue. ([CVE-2014-3470]) 8915 8916 *Felix Gröbert, Ivan Fratric, Steve Henson* 8917 8918 * Harmonize version and its documentation. -f flag is used to display 8919 compilation flags. 8920 8921 *mancha <mancha1@zoho.com>* 8922 8923 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8924 in i2d_ECPrivateKey. 8925 8926 *mancha <mancha1@zoho.com>* 8927 8928 * Fix some double frees. These are not thought to be exploitable. 8929 8930 *mancha <mancha1@zoho.com>* 8931 8932### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 8933 8934 * A missing bounds check in the handling of the TLS heartbeat extension 8935 can be used to reveal up to 64k of memory to a connected client or 8936 server. 8937 8938 Thanks for Neel Mehta of Google Security for discovering this bug and to 8939 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 8940 preparing the fix ([CVE-2014-0160]) 8941 8942 *Adam Langley, Bodo Moeller* 8943 8944 * Fix for the attack described in the paper "Recovering OpenSSL 8945 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8946 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8947 <http://eprint.iacr.org/2014/140> 8948 8949 Thanks to Yuval Yarom and Naomi Benger for discovering this 8950 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8951 8952 *Yuval Yarom and Naomi Benger* 8953 8954 * TLS pad extension: draft-agl-tls-padding-03 8955 8956 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 8957 TLS client Hello record length value would otherwise be > 255 and 8958 less that 512 pad with a dummy extension containing zeroes so it 8959 is at least 512 bytes long. 8960 8961 *Adam Langley, Steve Henson* 8962 8963### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 8964 8965 * Fix for TLS record tampering bug. A carefully crafted invalid 8966 handshake could crash OpenSSL with a NULL pointer exception. 8967 Thanks to Anton Johansson for reporting this issues. 8968 ([CVE-2013-4353]) 8969 8970 * Keep original DTLS digest and encryption contexts in retransmission 8971 structures so we can use the previous session parameters if they need 8972 to be resent. ([CVE-2013-6450]) 8973 8974 *Steve Henson* 8975 8976 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8977 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8978 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8979 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8980 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8981 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8982 8983 *Rob Stradling, Adam Langley* 8984 8985### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 8986 8987 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 8988 supporting platforms or when small records were transferred. 8989 8990 *Andy Polyakov, Steve Henson* 8991 8992### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 8993 8994 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8995 8996 This addresses the flaw in CBC record processing discovered by 8997 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8998 at: <http://www.isg.rhul.ac.uk/tls/> 8999 9000 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 9001 Security Group at Royal Holloway, University of London 9002 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 9003 Emilia Käsper for the initial patch. 9004 ([CVE-2013-0169]) 9005 9006 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 9007 9008 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 9009 ciphersuites which can be exploited in a denial of service attack. 9010 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 9011 and detecting this bug and to Wolfgang Ettlinger 9012 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 9013 ([CVE-2012-2686]) 9014 9015 *Adam Langley* 9016 9017 * Return an error when checking OCSP signatures when key is NULL. 9018 This fixes a DoS attack. ([CVE-2013-0166]) 9019 9020 *Steve Henson* 9021 9022 * Make openssl verify return errors. 9023 9024 *Chris Palmer <palmer@google.com> and Ben Laurie* 9025 9026 * Call OCSP Stapling callback after ciphersuite has been chosen, so 9027 the right response is stapled. Also change SSL_get_certificate() 9028 so it returns the certificate actually sent. 9029 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 9030 9031 *Rob Stradling <rob.stradling@comodo.com>* 9032 9033 * Fix possible deadlock when decoding public keys. 9034 9035 *Steve Henson* 9036 9037 * Don't use TLS 1.0 record version number in initial client hello 9038 if renegotiating. 9039 9040 *Steve Henson* 9041 9042### Changes between 1.0.1b and 1.0.1c [10 May 2012] 9043 9044 * Sanity check record length before skipping explicit IV in TLS 9045 1.2, 1.1 and DTLS to fix DoS attack. 9046 9047 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 9048 fuzzing as a service testing platform. 9049 ([CVE-2012-2333]) 9050 9051 *Steve Henson* 9052 9053 * Initialise tkeylen properly when encrypting CMS messages. 9054 Thanks to Solar Designer of Openwall for reporting this issue. 9055 9056 *Steve Henson* 9057 9058 * In FIPS mode don't try to use composite ciphers as they are not 9059 approved. 9060 9061 *Steve Henson* 9062 9063### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 9064 9065 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 9066 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 9067 mean any application compiled against OpenSSL 1.0.0 headers setting 9068 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 9069 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 9070 0x10000000L Any application which was previously compiled against 9071 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 9072 will need to be recompiled as a result. Letting be results in 9073 inability to disable specifically TLS 1.1 and in client context, 9074 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 9075 9076 *Steve Henson* 9077 9078 * In order to ensure interoperability SSL_OP_NO_protocolX does not 9079 disable just protocol X, but all protocols above X *if* there are 9080 protocols *below* X still enabled. In more practical terms it means 9081 that if application wants to disable TLS1.0 in favor of TLS1.1 and 9082 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 9083 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 9084 client side. 9085 9086 *Andy Polyakov* 9087 9088### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 9089 9090 * Check for potentially exploitable overflows in asn1_d2i_read_bio 9091 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 9092 in CRYPTO_realloc_clean. 9093 9094 Thanks to Tavis Ormandy, Google Security Team, for discovering this 9095 issue and to Adam Langley <agl@chromium.org> for fixing it. 9096 ([CVE-2012-2110]) 9097 9098 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 9099 9100 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 9101 9102 *Adam Langley* 9103 9104 * Workarounds for some broken servers that "hang" if a client hello 9105 record length exceeds 255 bytes. 9106 9107 1. Do not use record version number > TLS 1.0 in initial client 9108 hello: some (but not all) hanging servers will now work. 9109 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 9110 the number of ciphers sent in the client hello. This should be 9111 set to an even number, such as 50, for example by passing: 9112 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 9113 Most broken servers should now work. 9114 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 9115 TLS 1.2 client support entirely. 9116 9117 *Steve Henson* 9118 9119 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 9120 9121 *Andy Polyakov* 9122 9123### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 9124 9125 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 9126 STRING form instead of a DigestInfo. 9127 9128 *Steve Henson* 9129 9130 * The format used for MDC2 RSA signatures is inconsistent between EVP 9131 and the RSA_sign/RSA_verify functions. This was made more apparent when 9132 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 9133 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 9134 the correct format in RSA_verify so both forms transparently work. 9135 9136 *Steve Henson* 9137 9138 * Some servers which support TLS 1.0 can choke if we initially indicate 9139 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 9140 encrypted premaster secret. As a workaround use the maximum permitted 9141 client version in client hello, this should keep such servers happy 9142 and still work with previous versions of OpenSSL. 9143 9144 *Steve Henson* 9145 9146 * Add support for TLS/DTLS heartbeats. 9147 9148 *Robin Seggelmann <seggelmann@fh-muenster.de>* 9149 9150 * Add support for SCTP. 9151 9152 *Robin Seggelmann <seggelmann@fh-muenster.de>* 9153 9154 * Improved PRNG seeding for VOS. 9155 9156 *Paul Green <Paul.Green@stratus.com>* 9157 9158 * Extensive assembler packs updates, most notably: 9159 9160 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 9161 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 9162 - x86_64: bit-sliced AES implementation; 9163 - ARM: NEON support, contemporary platforms optimizations; 9164 - s390x: z196 support; 9165 - `*`: GHASH and GF(2^m) multiplication implementations; 9166 9167 *Andy Polyakov* 9168 9169 * Make TLS-SRP code conformant with RFC 5054 API cleanup 9170 (removal of unnecessary code) 9171 9172 *Peter Sylvester <peter.sylvester@edelweb.fr>* 9173 9174 * Add TLS key material exporter from RFC 5705. 9175 9176 *Eric Rescorla* 9177 9178 * Add DTLS-SRTP negotiation from RFC 5764. 9179 9180 *Eric Rescorla* 9181 9182 * Add Next Protocol Negotiation, 9183 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 9184 disabled with a no-npn flag to config or Configure. Code donated 9185 by Google. 9186 9187 *Adam Langley <agl@google.com> and Ben Laurie* 9188 9189 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 9190 NIST-P256, NIST-P521, with constant-time single point multiplication on 9191 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 9192 required to use this (present in gcc 4.4 and later, for 64-bit builds). 9193 Code made available under Apache License version 2.0. 9194 9195 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 9196 line to include this in your build of OpenSSL, and run "make depend" (or 9197 "make update"). This enables the following EC_METHODs: 9198 9199 EC_GFp_nistp224_method() 9200 EC_GFp_nistp256_method() 9201 EC_GFp_nistp521_method() 9202 9203 EC_GROUP_new_by_curve_name() will automatically use these (while 9204 EC_GROUP_new_curve_GFp() currently prefers the more flexible 9205 implementations). 9206 9207 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 9208 9209 * Use type ossl_ssize_t instead of ssize_t which isn't available on 9210 all platforms. Move ssize_t definition from e_os.h to the public 9211 header file e_os2.h as it now appears in public header file cms.h 9212 9213 *Steve Henson* 9214 9215 * New -sigopt option to the ca, req and x509 utilities. Additional 9216 signature parameters can be passed using this option and in 9217 particular PSS. 9218 9219 *Steve Henson* 9220 9221 * Add RSA PSS signing function. This will generate and set the 9222 appropriate AlgorithmIdentifiers for PSS based on those in the 9223 corresponding EVP_MD_CTX structure. No application support yet. 9224 9225 *Steve Henson* 9226 9227 * Support for companion algorithm specific ASN1 signing routines. 9228 New function ASN1_item_sign_ctx() signs a pre-initialised 9229 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 9230 the appropriate parameters. 9231 9232 *Steve Henson* 9233 9234 * Add new algorithm specific ASN1 verification initialisation function 9235 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 9236 handling will be the same no matter what EVP_PKEY_METHOD is used. 9237 Add a PSS handler to support verification of PSS signatures: checked 9238 against a number of sample certificates. 9239 9240 *Steve Henson* 9241 9242 * Add signature printing for PSS. Add PSS OIDs. 9243 9244 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 9245 9246 * Add algorithm specific signature printing. An individual ASN1 method 9247 can now print out signatures instead of the standard hex dump. 9248 9249 More complex signatures (e.g. PSS) can print out more meaningful 9250 information. Include DSA version that prints out the signature 9251 parameters r, s. 9252 9253 *Steve Henson* 9254 9255 * Password based recipient info support for CMS library: implementing 9256 RFC3211. 9257 9258 *Steve Henson* 9259 9260 * Split password based encryption into PBES2 and PBKDF2 functions. This 9261 neatly separates the code into cipher and PBE sections and is required 9262 for some algorithms that split PBES2 into separate pieces (such as 9263 password based CMS). 9264 9265 *Steve Henson* 9266 9267 * Session-handling fixes: 9268 - Fix handling of connections that are resuming with a session ID, 9269 but also support Session Tickets. 9270 - Fix a bug that suppressed issuing of a new ticket if the client 9271 presented a ticket with an expired session. 9272 - Try to set the ticket lifetime hint to something reasonable. 9273 - Make tickets shorter by excluding irrelevant information. 9274 - On the client side, don't ignore renewed tickets. 9275 9276 *Adam Langley, Bodo Moeller (Google)* 9277 9278 * Fix PSK session representation. 9279 9280 *Bodo Moeller* 9281 9282 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 9283 9284 This work was sponsored by Intel. 9285 9286 *Andy Polyakov* 9287 9288 * Add GCM support to TLS library. Some custom code is needed to split 9289 the IV between the fixed (from PRF) and explicit (from TLS record) 9290 portions. This adds all GCM ciphersuites supported by RFC5288 and 9291 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 9292 add a special AESGCM string for GCM only. 9293 9294 *Steve Henson* 9295 9296 * Expand range of ctrls for AES GCM. Permit setting invocation 9297 field on decrypt and retrieval of invocation field only on encrypt. 9298 9299 *Steve Henson* 9300 9301 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 9302 As required by RFC5289 these ciphersuites cannot be used if for 9303 versions of TLS earlier than 1.2. 9304 9305 *Steve Henson* 9306 9307 * For FIPS capable OpenSSL interpret a NULL default public key method 9308 as unset and return the appropriate default but do *not* set the default. 9309 This means we can return the appropriate method in applications that 9310 switch between FIPS and non-FIPS modes. 9311 9312 *Steve Henson* 9313 9314 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 9315 ENGINE is used then we cannot handle that in the FIPS module so we 9316 keep original code iff non-FIPS operations are allowed. 9317 9318 *Steve Henson* 9319 9320 * Add -attime option to openssl utilities. 9321 9322 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 9323 9324 * Redirect DSA and DH operations to FIPS module in FIPS mode. 9325 9326 *Steve Henson* 9327 9328 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 9329 FIPS EC methods unconditionally for now. 9330 9331 *Steve Henson* 9332 9333 * New build option no-ec2m to disable characteristic 2 code. 9334 9335 *Steve Henson* 9336 9337 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 9338 all cases can be covered as some introduce binary incompatibilities. 9339 9340 *Steve Henson* 9341 9342 * Redirect RSA operations to FIPS module including keygen, 9343 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 9344 9345 *Steve Henson* 9346 9347 * Add similar low-level API blocking to ciphers. 9348 9349 *Steve Henson* 9350 9351 * low-level digest APIs are not approved in FIPS mode: any attempt 9352 to use these will cause a fatal error. Applications that *really* want 9353 to use them can use the `private_*` version instead. 9354 9355 *Steve Henson* 9356 9357 * Redirect cipher operations to FIPS module for FIPS builds. 9358 9359 *Steve Henson* 9360 9361 * Redirect digest operations to FIPS module for FIPS builds. 9362 9363 *Steve Henson* 9364 9365 * Update build system to add "fips" flag which will link in fipscanister.o 9366 for static and shared library builds embedding a signature if needed. 9367 9368 *Steve Henson* 9369 9370 * Output TLS supported curves in preference order instead of numerical 9371 order. This is currently hardcoded for the highest order curves first. 9372 This should be configurable so applications can judge speed vs strength. 9373 9374 *Steve Henson* 9375 9376 * Add TLS v1.2 server support for client authentication. 9377 9378 *Steve Henson* 9379 9380 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 9381 and enable MD5. 9382 9383 *Steve Henson* 9384 9385 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 9386 FIPS modules versions. 9387 9388 *Steve Henson* 9389 9390 * Add TLS v1.2 client side support for client authentication. Keep cache 9391 of handshake records longer as we don't know the hash algorithm to use 9392 until after the certificate request message is received. 9393 9394 *Steve Henson* 9395 9396 * Initial TLS v1.2 client support. Add a default signature algorithms 9397 extension including all the algorithms we support. Parse new signature 9398 format in client key exchange. Relax some ECC signing restrictions for 9399 TLS v1.2 as indicated in RFC5246. 9400 9401 *Steve Henson* 9402 9403 * Add server support for TLS v1.2 signature algorithms extension. Switch 9404 to new signature format when needed using client digest preference. 9405 All server ciphersuites should now work correctly in TLS v1.2. No client 9406 support yet and no support for client certificates. 9407 9408 *Steve Henson* 9409 9410 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 9411 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 9412 ciphersuites. At present only RSA key exchange ciphersuites work with 9413 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 9414 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 9415 and version checking. 9416 9417 *Steve Henson* 9418 9419 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 9420 with this defined it will not be affected by any changes to ssl internal 9421 structures. Add several utility functions to allow openssl application 9422 to work with OPENSSL_NO_SSL_INTERN defined. 9423 9424 *Steve Henson* 9425 9426 * A long standing patch to add support for SRP from EdelWeb (Peter 9427 Sylvester and Christophe Renou) was integrated. 9428 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 9429 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 9430 Ben Laurie* 9431 9432 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 9433 9434 *Steve Henson* 9435 9436 * Permit abbreviated handshakes when renegotiating using the function 9437 SSL_renegotiate_abbreviated(). 9438 9439 *Robin Seggelmann <seggelmann@fh-muenster.de>* 9440 9441 * Add call to ENGINE_register_all_complete() to 9442 ENGINE_load_builtin_engines(), so some implementations get used 9443 automatically instead of needing explicit application support. 9444 9445 *Steve Henson* 9446 9447 * Add support for TLS key exporter as described in RFC5705. 9448 9449 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 9450 9451 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 9452 a few changes are required: 9453 9454 Add SSL_OP_NO_TLSv1_1 flag. 9455 Add TLSv1_1 methods. 9456 Update version checking logic to handle version 1.1. 9457 Add explicit IV handling (ported from DTLS code). 9458 Add command line options to s_client/s_server. 9459 9460 *Steve Henson* 9461 9462OpenSSL 1.0.0 9463------------- 9464 9465### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 9466 9467 * X509_ATTRIBUTE memory leak 9468 9469 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 9470 memory. This structure is used by the PKCS#7 and CMS routines so any 9471 application which reads PKCS#7 or CMS data from untrusted sources is 9472 affected. SSL/TLS is not affected. 9473 9474 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 9475 libFuzzer. 9476 ([CVE-2015-3195]) 9477 9478 *Stephen Henson* 9479 9480 * Race condition handling PSK identify hint 9481 9482 If PSK identity hints are received by a multi-threaded client then 9483 the values are wrongly updated in the parent SSL_CTX structure. This can 9484 result in a race condition potentially leading to a double free of the 9485 identify hint data. 9486 ([CVE-2015-3196]) 9487 9488 *Stephen Henson* 9489 9490### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 9491 9492 * Malformed ECParameters causes infinite loop 9493 9494 When processing an ECParameters structure OpenSSL enters an infinite loop 9495 if the curve specified is over a specially malformed binary polynomial 9496 field. 9497 9498 This can be used to perform denial of service against any 9499 system which processes public keys, certificate requests or 9500 certificates. This includes TLS clients and TLS servers with 9501 client authentication enabled. 9502 9503 This issue was reported to OpenSSL by Joseph Barr-Pixton. 9504 ([CVE-2015-1788]) 9505 9506 *Andy Polyakov* 9507 9508 * Exploitable out-of-bounds read in X509_cmp_time 9509 9510 X509_cmp_time does not properly check the length of the ASN1_TIME 9511 string and can read a few bytes out of bounds. In addition, 9512 X509_cmp_time accepts an arbitrary number of fractional seconds in the 9513 time string. 9514 9515 An attacker can use this to craft malformed certificates and CRLs of 9516 various sizes and potentially cause a segmentation fault, resulting in 9517 a DoS on applications that verify certificates or CRLs. TLS clients 9518 that verify CRLs are affected. TLS clients and servers with client 9519 authentication enabled may be affected if they use custom verification 9520 callbacks. 9521 9522 This issue was reported to OpenSSL by Robert Swiecki (Google), and 9523 independently by Hanno Böck. 9524 ([CVE-2015-1789]) 9525 9526 *Emilia Käsper* 9527 9528 * PKCS7 crash with missing EnvelopedContent 9529 9530 The PKCS#7 parsing code does not handle missing inner EncryptedContent 9531 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 9532 with missing content and trigger a NULL pointer dereference on parsing. 9533 9534 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 9535 structures from untrusted sources are affected. OpenSSL clients and 9536 servers are not affected. 9537 9538 This issue was reported to OpenSSL by Michal Zalewski (Google). 9539 ([CVE-2015-1790]) 9540 9541 *Emilia Käsper* 9542 9543 * CMS verify infinite loop with unknown hash function 9544 9545 When verifying a signedData message the CMS code can enter an infinite loop 9546 if presented with an unknown hash function OID. This can be used to perform 9547 denial of service against any system which verifies signedData messages using 9548 the CMS code. 9549 This issue was reported to OpenSSL by Johannes Bauer. 9550 ([CVE-2015-1792]) 9551 9552 *Stephen Henson* 9553 9554 * Race condition handling NewSessionTicket 9555 9556 If a NewSessionTicket is received by a multi-threaded client when attempting to 9557 reuse a previous ticket then a race condition can occur potentially leading to 9558 a double free of the ticket data. 9559 ([CVE-2015-1791]) 9560 9561 *Matt Caswell* 9562 9563### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 9564 9565 * Segmentation fault in ASN1_TYPE_cmp fix 9566 9567 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 9568 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 9569 certificate signature algorithm consistency this can be used to crash any 9570 certificate verification operation and exploited in a DoS attack. Any 9571 application which performs certificate verification is vulnerable including 9572 OpenSSL clients and servers which enable client authentication. 9573 ([CVE-2015-0286]) 9574 9575 *Stephen Henson* 9576 9577 * ASN.1 structure reuse memory corruption fix 9578 9579 Reusing a structure in ASN.1 parsing may allow an attacker to cause 9580 memory corruption via an invalid write. Such reuse is and has been 9581 strongly discouraged and is believed to be rare. 9582 9583 Applications that parse structures containing CHOICE or ANY DEFINED BY 9584 components may be affected. Certificate parsing (d2i_X509 and related 9585 functions) are however not affected. OpenSSL clients and servers are 9586 not affected. 9587 ([CVE-2015-0287]) 9588 9589 *Stephen Henson* 9590 9591 * PKCS7 NULL pointer dereferences fix 9592 9593 The PKCS#7 parsing code does not handle missing outer ContentInfo 9594 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 9595 missing content and trigger a NULL pointer dereference on parsing. 9596 9597 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 9598 otherwise parse PKCS#7 structures from untrusted sources are 9599 affected. OpenSSL clients and servers are not affected. 9600 9601 This issue was reported to OpenSSL by Michal Zalewski (Google). 9602 ([CVE-2015-0289]) 9603 9604 *Emilia Käsper* 9605 9606 * DoS via reachable assert in SSLv2 servers fix 9607 9608 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 9609 servers that both support SSLv2 and enable export cipher suites by sending 9610 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 9611 9612 This issue was discovered by Sean Burford (Google) and Emilia Käsper 9613 (OpenSSL development team). 9614 ([CVE-2015-0293]) 9615 9616 *Emilia Käsper* 9617 9618 * Use After Free following d2i_ECPrivatekey error fix 9619 9620 A malformed EC private key file consumed via the d2i_ECPrivateKey function 9621 could cause a use after free condition. This, in turn, could cause a double 9622 free in several private key parsing functions (such as d2i_PrivateKey 9623 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 9624 for applications that receive EC private keys from untrusted 9625 sources. This scenario is considered rare. 9626 9627 This issue was discovered by the BoringSSL project and fixed in their 9628 commit 517073cd4b. 9629 ([CVE-2015-0209]) 9630 9631 *Matt Caswell* 9632 9633 * X509_to_X509_REQ NULL pointer deref fix 9634 9635 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 9636 the certificate key is invalid. This function is rarely used in practice. 9637 9638 This issue was discovered by Brian Carpenter. 9639 ([CVE-2015-0288]) 9640 9641 *Stephen Henson* 9642 9643 * Removed the export ciphers from the DEFAULT ciphers 9644 9645 *Kurt Roeckx* 9646 9647### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 9648 9649 * Build fixes for the Windows and OpenVMS platforms 9650 9651 *Matt Caswell and Richard Levitte* 9652 9653### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 9654 9655 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 9656 message can cause a segmentation fault in OpenSSL due to a NULL pointer 9657 dereference. This could lead to a Denial Of Service attack. Thanks to 9658 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 9659 ([CVE-2014-3571]) 9660 9661 *Steve Henson* 9662 9663 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 9664 dtls1_buffer_record function under certain conditions. In particular this 9665 could occur if an attacker sent repeated DTLS records with the same 9666 sequence number but for the next epoch. The memory leak could be exploited 9667 by an attacker in a Denial of Service attack through memory exhaustion. 9668 Thanks to Chris Mueller for reporting this issue. 9669 ([CVE-2015-0206]) 9670 9671 *Matt Caswell* 9672 9673 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 9674 built with the no-ssl3 option and an SSL v3 ClientHello is received the ssl 9675 method would be set to NULL which could later result in a NULL pointer 9676 dereference. Thanks to Frank Schmirler for reporting this issue. 9677 ([CVE-2014-3569]) 9678 9679 *Kurt Roeckx* 9680 9681 * Abort handshake if server key exchange message is omitted for ephemeral 9682 ECDH ciphersuites. 9683 9684 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 9685 reporting this issue. 9686 ([CVE-2014-3572]) 9687 9688 *Steve Henson* 9689 9690 * Remove non-export ephemeral RSA code on client and server. This code 9691 violated the TLS standard by allowing the use of temporary RSA keys in 9692 non-export ciphersuites and could be used by a server to effectively 9693 downgrade the RSA key length used to a value smaller than the server 9694 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 9695 INRIA or reporting this issue. 9696 ([CVE-2015-0204]) 9697 9698 *Steve Henson* 9699 9700 * Fixed issue where DH client certificates are accepted without verification. 9701 An OpenSSL server will accept a DH certificate for client authentication 9702 without the certificate verify message. This effectively allows a client to 9703 authenticate without the use of a private key. This only affects servers 9704 which trust a client certificate authority which issues certificates 9705 containing DH keys: these are extremely rare and hardly ever encountered. 9706 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 9707 this issue. 9708 ([CVE-2015-0205]) 9709 9710 *Steve Henson* 9711 9712 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 9713 results on some platforms, including x86_64. This bug occurs at random 9714 with a very low probability, and is not known to be exploitable in any 9715 way, though its exact impact is difficult to determine. Thanks to Pieter 9716 Wuille (Blockstream) who reported this issue and also suggested an initial 9717 fix. Further analysis was conducted by the OpenSSL development team and 9718 Adam Langley of Google. The final fix was developed by Andy Polyakov of 9719 the OpenSSL core team. 9720 ([CVE-2014-3570]) 9721 9722 *Andy Polyakov* 9723 9724 * Fix various certificate fingerprint issues. 9725 9726 By using non-DER or invalid encodings outside the signed portion of a 9727 certificate the fingerprint can be changed without breaking the signature. 9728 Although no details of the signed portion of the certificate can be changed 9729 this can cause problems with some applications: e.g. those using the 9730 certificate fingerprint for blacklists. 9731 9732 1. Reject signatures with non zero unused bits. 9733 9734 If the BIT STRING containing the signature has non zero unused bits reject 9735 the signature. All current signature algorithms require zero unused bits. 9736 9737 2. Check certificate algorithm consistency. 9738 9739 Check the AlgorithmIdentifier inside TBS matches the one in the 9740 certificate signature. NB: this will result in signature failure 9741 errors for some broken certificates. 9742 9743 Thanks to Konrad Kraszewski from Google for reporting this issue. 9744 9745 3. Check DSA/ECDSA signatures use DER. 9746 9747 Re-encode DSA/ECDSA signatures and compare with the original received 9748 signature. Return an error if there is a mismatch. 9749 9750 This will reject various cases including garbage after signature 9751 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 9752 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 9753 (negative or with leading zeroes). 9754 9755 Further analysis was conducted and fixes were developed by Stephen Henson 9756 of the OpenSSL core team. 9757 9758 ([CVE-2014-8275]) 9759 9760 *Steve Henson* 9761 9762### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 9763 9764 * Session Ticket Memory Leak. 9765 9766 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 9767 integrity of that ticket is first verified. In the event of a session 9768 ticket integrity check failing, OpenSSL will fail to free memory 9769 causing a memory leak. By sending a large number of invalid session 9770 tickets an attacker could exploit this issue in a Denial Of Service 9771 attack. 9772 ([CVE-2014-3567]) 9773 9774 *Steve Henson* 9775 9776 * Build option no-ssl3 is incomplete. 9777 9778 When OpenSSL is configured with "no-ssl3" as a build option, servers 9779 could accept and complete an SSL 3.0 handshake, and clients could be 9780 configured to send them. 9781 ([CVE-2014-3568]) 9782 9783 *Akamai and the OpenSSL team* 9784 9785 * Add support for TLS_FALLBACK_SCSV. 9786 Client applications doing fallback retries should call 9787 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 9788 ([CVE-2014-3566]) 9789 9790 *Adam Langley, Bodo Moeller* 9791 9792 * Add additional DigestInfo checks. 9793 9794 Re-encode DigestInto in DER and check against the original when 9795 verifying RSA signature: this will reject any improperly encoded 9796 DigestInfo structures. 9797 9798 Note: this is a precautionary measure and no attacks are currently known. 9799 9800 *Steve Henson* 9801 9802### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 9803 9804 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 9805 to a denial of service attack. A malicious server can crash the client 9806 with a null pointer dereference (read) by specifying an anonymous (EC)DH 9807 ciphersuite and sending carefully crafted handshake messages. 9808 9809 Thanks to Felix Gröbert (Google) for discovering and researching this 9810 issue. 9811 ([CVE-2014-3510]) 9812 9813 *Emilia Käsper* 9814 9815 * By sending carefully crafted DTLS packets an attacker could cause openssl 9816 to leak memory. This can be exploited through a Denial of Service attack. 9817 Thanks to Adam Langley for discovering and researching this issue. 9818 ([CVE-2014-3507]) 9819 9820 *Adam Langley* 9821 9822 * An attacker can force openssl to consume large amounts of memory whilst 9823 processing DTLS handshake messages. This can be exploited through a 9824 Denial of Service attack. 9825 Thanks to Adam Langley for discovering and researching this issue. 9826 ([CVE-2014-3506]) 9827 9828 *Adam Langley* 9829 9830 * An attacker can force an error condition which causes openssl to crash 9831 whilst processing DTLS packets due to memory being freed twice. This 9832 can be exploited through a Denial of Service attack. 9833 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 9834 this issue. 9835 ([CVE-2014-3505]) 9836 9837 *Adam Langley* 9838 9839 * If a multithreaded client connects to a malicious server using a resumed 9840 session and the server sends an ec point format extension it could write 9841 up to 255 bytes to freed memory. 9842 9843 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 9844 issue. 9845 ([CVE-2014-3509]) 9846 9847 *Gabor Tyukasz* 9848 9849 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 9850 X509_name_oneline, X509_name_print_ex et al. to leak some information 9851 from the stack. Applications may be affected if they echo pretty printing 9852 output to the attacker. 9853 9854 Thanks to Ivan Fratric (Google) for discovering this issue. 9855 ([CVE-2014-3508]) 9856 9857 *Emilia Käsper, and Steve Henson* 9858 9859 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 9860 for corner cases. (Certain input points at infinity could lead to 9861 bogus results, with non-infinity inputs mapped to infinity too.) 9862 9863 *Bodo Moeller* 9864 9865### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 9866 9867 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 9868 handshake can force the use of weak keying material in OpenSSL 9869 SSL/TLS clients and servers. 9870 9871 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 9872 researching this issue. ([CVE-2014-0224]) 9873 9874 *KIKUCHI Masashi, Steve Henson* 9875 9876 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 9877 OpenSSL DTLS client the code can be made to recurse eventually crashing 9878 in a DoS attack. 9879 9880 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 9881 ([CVE-2014-0221]) 9882 9883 *Imre Rad, Steve Henson* 9884 9885 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 9886 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 9887 client or server. This is potentially exploitable to run arbitrary 9888 code on a vulnerable client or server. 9889 9890 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 9891 9892 *Jüri Aedla, Steve Henson* 9893 9894 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 9895 are subject to a denial of service attack. 9896 9897 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 9898 this issue. ([CVE-2014-3470]) 9899 9900 *Felix Gröbert, Ivan Fratric, Steve Henson* 9901 9902 * Harmonize version and its documentation. -f flag is used to display 9903 compilation flags. 9904 9905 *mancha <mancha1@zoho.com>* 9906 9907 * Fix eckey_priv_encode so it immediately returns an error upon a failure 9908 in i2d_ECPrivateKey. 9909 9910 *mancha <mancha1@zoho.com>* 9911 9912 * Fix some double frees. These are not thought to be exploitable. 9913 9914 *mancha <mancha1@zoho.com>* 9915 9916 * Fix for the attack described in the paper "Recovering OpenSSL 9917 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 9918 by Yuval Yarom and Naomi Benger. Details can be obtained from: 9919 <http://eprint.iacr.org/2014/140> 9920 9921 Thanks to Yuval Yarom and Naomi Benger for discovering this 9922 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 9923 9924 *Yuval Yarom and Naomi Benger* 9925 9926### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 9927 9928 * Keep original DTLS digest and encryption contexts in retransmission 9929 structures so we can use the previous session parameters if they need 9930 to be resent. ([CVE-2013-6450]) 9931 9932 *Steve Henson* 9933 9934 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 9935 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 9936 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 9937 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 9938 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 9939 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 9940 9941 *Rob Stradling, Adam Langley* 9942 9943### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 9944 9945 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 9946 9947 This addresses the flaw in CBC record processing discovered by 9948 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 9949 at: <http://www.isg.rhul.ac.uk/tls/> 9950 9951 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 9952 Security Group at Royal Holloway, University of London 9953 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 9954 Emilia Käsper for the initial patch. 9955 ([CVE-2013-0169]) 9956 9957 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 9958 9959 * Return an error when checking OCSP signatures when key is NULL. 9960 This fixes a DoS attack. ([CVE-2013-0166]) 9961 9962 *Steve Henson* 9963 9964 * Call OCSP Stapling callback after ciphersuite has been chosen, so 9965 the right response is stapled. Also change SSL_get_certificate() 9966 so it returns the certificate actually sent. 9967 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 9968 (This is a backport) 9969 9970 *Rob Stradling <rob.stradling@comodo.com>* 9971 9972 * Fix possible deadlock when decoding public keys. 9973 9974 *Steve Henson* 9975 9976### Changes between 1.0.0i and 1.0.0j [10 May 2012] 9977 9978[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 9979OpenSSL 1.0.1.] 9980 9981 * Sanity check record length before skipping explicit IV in DTLS 9982 to fix DoS attack. 9983 9984 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 9985 fuzzing as a service testing platform. 9986 ([CVE-2012-2333]) 9987 9988 *Steve Henson* 9989 9990 * Initialise tkeylen properly when encrypting CMS messages. 9991 Thanks to Solar Designer of Openwall for reporting this issue. 9992 9993 *Steve Henson* 9994 9995### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 9996 9997 * Check for potentially exploitable overflows in asn1_d2i_read_bio 9998 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 9999 in CRYPTO_realloc_clean. 10000 10001 Thanks to Tavis Ormandy, Google Security Team, for discovering this 10002 issue and to Adam Langley <agl@chromium.org> for fixing it. 10003 ([CVE-2012-2110]) 10004 10005 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 10006 10007### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 10008 10009 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 10010 in CMS and PKCS7 code. When RSA decryption fails use a random key for 10011 content decryption and always return the same error. Note: this attack 10012 needs on average 2^20 messages so it only affects automated senders. The 10013 old behaviour can be re-enabled in the CMS code by setting the 10014 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 10015 an MMA defence is not necessary. 10016 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 10017 this issue. ([CVE-2012-0884]) 10018 10019 *Steve Henson* 10020 10021 * Fix CVE-2011-4619: make sure we really are receiving a 10022 client hello before rejecting multiple SGC restarts. Thanks to 10023 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 10024 10025 *Steve Henson* 10026 10027### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 10028 10029 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 10030 Thanks to Antonio Martin, Enterprise Secure Access Research and 10031 Development, Cisco Systems, Inc. for discovering this bug and 10032 preparing a fix. ([CVE-2012-0050]) 10033 10034 *Antonio Martin* 10035 10036### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 10037 10038 * Nadhem Alfardan and Kenny Paterson have discovered an extension 10039 of the Vaudenay padding oracle attack on CBC mode encryption 10040 which enables an efficient plaintext recovery attack against 10041 the OpenSSL implementation of DTLS. Their attack exploits timing 10042 differences arising during decryption processing. A research 10043 paper describing this attack can be found at: 10044 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 10045 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 10046 Security Group at Royal Holloway, University of London 10047 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 10048 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 10049 for preparing the fix. ([CVE-2011-4108]) 10050 10051 *Robin Seggelmann, Michael Tuexen* 10052 10053 * Clear bytes used for block padding of SSL 3.0 records. 10054 ([CVE-2011-4576]) 10055 10056 *Adam Langley (Google)* 10057 10058 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 10059 Kadianakis <desnacked@gmail.com> for discovering this issue and 10060 Adam Langley for preparing the fix. ([CVE-2011-4619]) 10061 10062 *Adam Langley (Google)* 10063 10064 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 10065 10066 *Andrey Kulikov <amdeich@gmail.com>* 10067 10068 * Prevent malformed RFC3779 data triggering an assertion failure. 10069 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 10070 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 10071 10072 *Rob Austein <sra@hactrn.net>* 10073 10074 * Improved PRNG seeding for VOS. 10075 10076 *Paul Green <Paul.Green@stratus.com>* 10077 10078 * Fix ssl_ciph.c set-up race. 10079 10080 *Adam Langley (Google)* 10081 10082 * Fix spurious failures in ecdsatest.c. 10083 10084 *Emilia Käsper (Google)* 10085 10086 * Fix the BIO_f_buffer() implementation (which was mixing different 10087 interpretations of the `..._len` fields). 10088 10089 *Adam Langley (Google)* 10090 10091 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 10092 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 10093 threads won't reuse the same blinding coefficients. 10094 10095 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 10096 lock to call BN_BLINDING_invert_ex, and avoids one use of 10097 BN_BLINDING_update for each BN_BLINDING structure (previously, 10098 the last update always remained unused). 10099 10100 *Emilia Käsper (Google)* 10101 10102 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 10103 10104 *Bob Buckholz (Google)* 10105 10106### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 10107 10108 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 10109 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 10110 10111 *Kaspar Brand <ossl@velox.ch>* 10112 10113 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 10114 for multi-threaded use of ECDH. ([CVE-2011-3210]) 10115 10116 *Adam Langley (Google)* 10117 10118 * Fix x509_name_ex_d2i memory leak on bad inputs. 10119 10120 *Bodo Moeller* 10121 10122 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 10123 signature public key algorithm by using OID xref utilities instead. 10124 Before this you could only use some ECC ciphersuites with SHA1 only. 10125 10126 *Steve Henson* 10127 10128 * Add protection against ECDSA timing attacks as mentioned in the paper 10129 by Billy Bob Brumley and Nicola Tuveri, see: 10130 <http://eprint.iacr.org/2011/232.pdf> 10131 10132 *Billy Bob Brumley and Nicola Tuveri* 10133 10134### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 10135 10136 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 10137 10138 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 10139 10140 * Fix bug in string printing code: if *any* escaping is enabled we must 10141 escape the escape character (backslash) or the resulting string is 10142 ambiguous. 10143 10144 *Steve Henson* 10145 10146### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 10147 10148 * Disable code workaround for ancient and obsolete Netscape browsers 10149 and servers: an attacker can use it in a ciphersuite downgrade attack. 10150 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 10151 10152 *Steve Henson* 10153 10154 * Fixed J-PAKE implementation error, originally discovered by 10155 Sebastien Martini, further info and confirmation from Stefan 10156 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 10157 10158 *Ben Laurie* 10159 10160### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 10161 10162 * Fix extension code to avoid race conditions which can result in a buffer 10163 overrun vulnerability: resumed sessions must not be modified as they can 10164 be shared by multiple threads. CVE-2010-3864 10165 10166 *Steve Henson* 10167 10168 * Fix WIN32 build system to correctly link an ENGINE directory into 10169 a DLL. 10170 10171 *Steve Henson* 10172 10173### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 10174 10175 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 10176 ([CVE-2010-1633]) 10177 10178 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 10179 10180### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 10181 10182 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 10183 context. The operation can be customised via the ctrl mechanism in 10184 case ENGINEs want to include additional functionality. 10185 10186 *Steve Henson* 10187 10188 * Tolerate yet another broken PKCS#8 key format: private key value negative. 10189 10190 *Steve Henson* 10191 10192 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 10193 output hashes compatible with older versions of OpenSSL. 10194 10195 *Willy Weisz <weisz@vcpc.univie.ac.at>* 10196 10197 * Fix compression algorithm handling: if resuming a session use the 10198 compression algorithm of the resumed session instead of determining 10199 it from client hello again. Don't allow server to change algorithm. 10200 10201 *Steve Henson* 10202 10203 * Add load_crls() function to commands tidying load_certs() too. Add option 10204 to verify utility to allow additional CRLs to be included. 10205 10206 *Steve Henson* 10207 10208 * Update OCSP request code to permit adding custom headers to the request: 10209 some responders need this. 10210 10211 *Steve Henson* 10212 10213 * The function EVP_PKEY_sign() returns <=0 on error: check return code 10214 correctly. 10215 10216 *Julia Lawall <julia@diku.dk>* 10217 10218 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 10219 needlessly dereferenced structures, used obsolete functions and 10220 didn't handle all updated verify codes correctly. 10221 10222 *Steve Henson* 10223 10224 * Disable MD2 in the default configuration. 10225 10226 *Steve Henson* 10227 10228 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 10229 indicate the initial BIO being pushed or popped. This makes it possible 10230 to determine whether the BIO is the one explicitly called or as a result 10231 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 10232 it handles reference counts correctly and doesn't zero out the I/O bio 10233 when it is not being explicitly popped. WARNING: applications which 10234 included workarounds for the old buggy behaviour will need to be modified 10235 or they could free up already freed BIOs. 10236 10237 *Steve Henson* 10238 10239 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 10240 renaming to all platforms (within the 0.9.8 branch, this was 10241 done conditionally on Netware platforms to avoid a name clash). 10242 10243 *Guenter <lists@gknw.net>* 10244 10245 * Add ECDHE and PSK support to DTLS. 10246 10247 *Michael Tuexen <tuexen@fh-muenster.de>* 10248 10249 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 10250 be used on C++. 10251 10252 *Steve Henson* 10253 10254 * Add "missing" function EVP_MD_flags() (without this the only way to 10255 retrieve a digest flags is by accessing the structure directly. Update 10256 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 10257 or cipher is registered as in the "from" argument. Print out all 10258 registered digests in the dgst usage message instead of manually 10259 attempting to work them out. 10260 10261 *Steve Henson* 10262 10263 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 10264 this allows the use of compression and extensions. Change default cipher 10265 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 10266 by default unless an application cipher string requests it. 10267 10268 *Steve Henson* 10269 10270 * Alter match criteria in PKCS12_parse(). It used to try to use local 10271 key ids to find matching certificates and keys but some PKCS#12 files 10272 don't follow the (somewhat unwritten) rules and this strategy fails. 10273 Now just gather all certificates together and the first private key 10274 then look for the first certificate that matches the key. 10275 10276 *Steve Henson* 10277 10278 * Support use of registered digest and cipher names for dgst and cipher 10279 commands instead of having to add each one as a special case. So now 10280 you can do: 10281 10282 openssl sha256 foo 10283 10284 as well as: 10285 10286 openssl dgst -sha256 foo 10287 10288 and this works for ENGINE based algorithms too. 10289 10290 *Steve Henson* 10291 10292 * Update Gost ENGINE to support parameter files. 10293 10294 *Victor B. Wagner <vitus@cryptocom.ru>* 10295 10296 * Support GeneralizedTime in ca utility. 10297 10298 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 10299 10300 * Enhance the hash format used for certificate directory links. The new 10301 form uses the canonical encoding (meaning equivalent names will work 10302 even if they aren't identical) and uses SHA1 instead of MD5. This form 10303 is incompatible with the older format and as a result c_rehash should 10304 be used to rebuild symbolic links. 10305 10306 *Steve Henson* 10307 10308 * Make PKCS#8 the default write format for private keys, replacing the 10309 traditional format. This form is standardised, more secure and doesn't 10310 include an implicit MD5 dependency. 10311 10312 *Steve Henson* 10313 10314 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 10315 committed to OpenSSL should pass this lot as a minimum. 10316 10317 *Steve Henson* 10318 10319 * Add session ticket override functionality for use by EAP-FAST. 10320 10321 *Jouni Malinen <j@w1.fi>* 10322 10323 * Modify HMAC functions to return a value. Since these can be implemented 10324 in an ENGINE errors can occur. 10325 10326 *Steve Henson* 10327 10328 * Type-checked OBJ_bsearch_ex. 10329 10330 *Ben Laurie* 10331 10332 * Type-checked OBJ_bsearch. Also some constification necessitated 10333 by type-checking. Still to come: TXT_DB, bsearch(?), 10334 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 10335 CONF_VALUE. 10336 10337 *Ben Laurie* 10338 10339 * New function OPENSSL_gmtime_adj() to add a specific number of days and 10340 seconds to a tm structure directly, instead of going through OS 10341 specific date routines. This avoids any issues with OS routines such 10342 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 10343 and X509_time_adj_ex() to cover the extended range. The existing 10344 X509_time_adj() is still usable and will no longer have any date issues. 10345 10346 *Steve Henson* 10347 10348 * Delta CRL support. New use deltas option which will attempt to locate 10349 and search any appropriate delta CRLs available. 10350 10351 This work was sponsored by Google. 10352 10353 *Steve Henson* 10354 10355 * Support for CRLs partitioned by reason code. Reorganise CRL processing 10356 code and add additional score elements. Validate alternate CRL paths 10357 as part of the CRL checking and indicate a new error "CRL path validation 10358 error" in this case. Applications wanting additional details can use 10359 the verify callback and check the new "parent" field. If this is not 10360 NULL CRL path validation is taking place. Existing applications won't 10361 see this because it requires extended CRL support which is off by 10362 default. 10363 10364 This work was sponsored by Google. 10365 10366 *Steve Henson* 10367 10368 * Support for freshest CRL extension. 10369 10370 This work was sponsored by Google. 10371 10372 *Steve Henson* 10373 10374 * Initial indirect CRL support. Currently only supported in the CRLs 10375 passed directly and not via lookup. Process certificate issuer 10376 CRL entry extension and lookup CRL entries by bother issuer name 10377 and serial number. Check and process CRL issuer entry in IDP extension. 10378 10379 This work was sponsored by Google. 10380 10381 *Steve Henson* 10382 10383 * Add support for distinct certificate and CRL paths. The CRL issuer 10384 certificate is validated separately in this case. Only enabled if 10385 an extended CRL support flag is set: this flag will enable additional 10386 CRL functionality in future. 10387 10388 This work was sponsored by Google. 10389 10390 *Steve Henson* 10391 10392 * Add support for policy mappings extension. 10393 10394 This work was sponsored by Google. 10395 10396 *Steve Henson* 10397 10398 * Fixes to pathlength constraint, self issued certificate handling, 10399 policy processing to align with RFC3280 and PKITS tests. 10400 10401 This work was sponsored by Google. 10402 10403 *Steve Henson* 10404 10405 * Support for name constraints certificate extension. DN, email, DNS 10406 and URI types are currently supported. 10407 10408 This work was sponsored by Google. 10409 10410 *Steve Henson* 10411 10412 * To cater for systems that provide a pointer-based thread ID rather 10413 than numeric, deprecate the current numeric thread ID mechanism and 10414 replace it with a structure and associated callback type. This 10415 mechanism allows a numeric "hash" to be extracted from a thread ID in 10416 either case, and on platforms where pointers are larger than 'long', 10417 mixing is done to help ensure the numeric 'hash' is usable even if it 10418 can't be guaranteed unique. The default mechanism is to use "&errno" 10419 as a pointer-based thread ID to distinguish between threads. 10420 10421 Applications that want to provide their own thread IDs should now use 10422 CRYPTO_THREADID_set_callback() to register a callback that will call 10423 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 10424 10425 Note that ERR_remove_state() is now deprecated, because it is tied 10426 to the assumption that thread IDs are numeric. ERR_remove_state(0) 10427 to free the current thread's error state should be replaced by 10428 ERR_remove_thread_state(NULL). 10429 10430 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 10431 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 10432 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 10433 application was previously providing a numeric thread callback that 10434 was inappropriate for distinguishing threads, then uniqueness might 10435 have been obtained with &errno that happened immediately in the 10436 intermediate development versions of OpenSSL; this is no longer the 10437 case, the numeric thread callback will now override the automatic use 10438 of &errno.) 10439 10440 *Geoff Thorpe, with help from Bodo Moeller* 10441 10442 * Initial support for different CRL issuing certificates. This covers a 10443 simple case where the self issued certificates in the chain exist and 10444 the real CRL issuer is higher in the existing chain. 10445 10446 This work was sponsored by Google. 10447 10448 *Steve Henson* 10449 10450 * Removed effectively defunct crypto/store from the build. 10451 10452 *Ben Laurie* 10453 10454 * Revamp of STACK to provide stronger type-checking. Still to come: 10455 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 10456 ASN1_STRING, CONF_VALUE. 10457 10458 *Ben Laurie* 10459 10460 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 10461 RAM on SSL connections. This option can save about 34k per idle SSL. 10462 10463 *Nick Mathewson* 10464 10465 * Revamp of LHASH to provide stronger type-checking. Still to come: 10466 STACK, TXT_DB, bsearch, qsort. 10467 10468 *Ben Laurie* 10469 10470 * Initial support for Cryptographic Message Syntax (aka CMS) based 10471 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 10472 support for data, signedData, compressedData, digestedData and 10473 encryptedData, envelopedData types included. Scripts to check against 10474 RFC4134 examples draft and interop and consistency checks of many 10475 content types and variants. 10476 10477 *Steve Henson* 10478 10479 * Add options to enc utility to support use of zlib compression BIO. 10480 10481 *Steve Henson* 10482 10483 * Extend mk1mf to support importing of options and assembly language 10484 files from Configure script, currently only included in VC-WIN32. 10485 The assembly language rules can now optionally generate the source 10486 files from the associated perl scripts. 10487 10488 *Steve Henson* 10489 10490 * Implement remaining functionality needed to support GOST ciphersuites. 10491 Interop testing has been performed using CryptoPro implementations. 10492 10493 *Victor B. Wagner <vitus@cryptocom.ru>* 10494 10495 * s390x assembler pack. 10496 10497 *Andy Polyakov* 10498 10499 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 10500 "family." 10501 10502 *Andy Polyakov* 10503 10504 * Implement Opaque PRF Input TLS extension as specified in 10505 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 10506 official specification yet and no extension type assignment by 10507 IANA exists, this extension (for now) will have to be explicitly 10508 enabled when building OpenSSL by providing the extension number 10509 to use. For example, specify an option 10510 10511 -DTLSEXT_TYPE_opaque_prf_input=0x9527 10512 10513 to the "config" or "Configure" script to enable the extension, 10514 assuming extension number 0x9527 (which is a completely arbitrary 10515 and unofficial assignment based on the MD5 hash of the Internet 10516 Draft). Note that by doing so, you potentially lose 10517 interoperability with other TLS implementations since these might 10518 be using the same extension number for other purposes. 10519 10520 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 10521 opaque PRF input value to use in the handshake. This will create 10522 an internal copy of the length-'len' string at 'src', and will 10523 return non-zero for success. 10524 10525 To get more control and flexibility, provide a callback function 10526 by using 10527 10528 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 10529 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 10530 10531 where 10532 10533 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 10534 void *arg; 10535 10536 Callback function 'cb' will be called in handshakes, and is 10537 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 10538 Argument 'arg' is for application purposes (the value as given to 10539 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 10540 be provided to the callback function). The callback function 10541 has to return non-zero to report success: usually 1 to use opaque 10542 PRF input just if possible, or 2 to enforce use of the opaque PRF 10543 input. In the latter case, the library will abort the handshake 10544 if opaque PRF input is not successfully negotiated. 10545 10546 Arguments 'peerinput' and 'len' given to the callback function 10547 will always be NULL and 0 in the case of a client. A server will 10548 see the client's opaque PRF input through these variables if 10549 available (NULL and 0 otherwise). Note that if the server 10550 provides an opaque PRF input, the length must be the same as the 10551 length of the client's opaque PRF input. 10552 10553 Note that the callback function will only be called when creating 10554 a new session (session resumption can resume whatever was 10555 previously negotiated), and will not be called in SSL 2.0 10556 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 10557 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 10558 for applications that need to enforce opaque PRF input. 10559 10560 *Bodo Moeller* 10561 10562 * Update ssl code to support digests other than SHA1+MD5 for handshake 10563 MAC. 10564 10565 *Victor B. Wagner <vitus@cryptocom.ru>* 10566 10567 * Add RFC4507 support to OpenSSL. This includes the corrections in 10568 RFC4507bis. The encrypted ticket format is an encrypted encoded 10569 SSL_SESSION structure, that way new session features are automatically 10570 supported. 10571 10572 If a client application caches session in an SSL_SESSION structure 10573 support is transparent because tickets are now stored in the encoded 10574 SSL_SESSION. 10575 10576 The SSL_CTX structure automatically generates keys for ticket 10577 protection in servers so again support should be possible 10578 with no application modification. 10579 10580 If a client or server wishes to disable RFC4507 support then the option 10581 SSL_OP_NO_TICKET can be set. 10582 10583 Add a TLS extension debugging callback to allow the contents of any client 10584 or server extensions to be examined. 10585 10586 This work was sponsored by Google. 10587 10588 *Steve Henson* 10589 10590 * Final changes to avoid use of pointer pointer casts in OpenSSL. 10591 OpenSSL should now compile cleanly on gcc 4.2 10592 10593 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 10594 10595 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 10596 support including streaming MAC support: this is required for GOST 10597 ciphersuite support. 10598 10599 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 10600 10601 * Add option -stream to use PKCS#7 streaming in smime utility. New 10602 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 10603 to output in BER and PEM format. 10604 10605 *Steve Henson* 10606 10607 * Experimental support for use of HMAC via EVP_PKEY interface. This 10608 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 10609 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 10610 ENGINE support for HMAC keys which are unextractable. New -mac and 10611 -macopt options to dgst utility. 10612 10613 *Steve Henson* 10614 10615 * New option -sigopt to dgst utility. Update dgst to use 10616 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 10617 alternative signing parameters such as X9.31 or PSS in the dgst 10618 utility. 10619 10620 *Steve Henson* 10621 10622 * Change ssl_cipher_apply_rule(), the internal function that does 10623 the work each time a ciphersuite string requests enabling 10624 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 10625 removing ("!foo+bar") a class of ciphersuites: Now it maintains 10626 the order of disabled ciphersuites such that those ciphersuites 10627 that most recently went from enabled to disabled not only stay 10628 in order with respect to each other, but also have higher priority 10629 than other disabled ciphersuites the next time ciphersuites are 10630 enabled again. 10631 10632 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 10633 the same ciphersuites as with "HIGH" alone, but in a specific 10634 order where the PSK ciphersuites come first (since they are the 10635 most recently disabled ciphersuites when "HIGH" is parsed). 10636 10637 Also, change ssl_create_cipher_list() (using this new 10638 functionality) such that between otherwise identical 10639 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 10640 the default order. 10641 10642 *Bodo Moeller* 10643 10644 * Change ssl_create_cipher_list() so that it automatically 10645 arranges the ciphersuites in reasonable order before starting 10646 to process the rule string. Thus, the definition for "DEFAULT" 10647 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 10648 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 10649 This makes it much easier to arrive at a reasonable default order 10650 in applications for which anonymous ciphers are OK (meaning 10651 that you can't actually use DEFAULT). 10652 10653 *Bodo Moeller; suggested by Victor Duchovni* 10654 10655 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 10656 processing) into multiple integers instead of setting 10657 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 10658 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 10659 (These masks as well as the individual bit definitions are hidden 10660 away into the non-exported interface ssl/ssl_locl.h, so this 10661 change to the definition of the SSL_CIPHER structure shouldn't 10662 affect applications.) This give us more bits for each of these 10663 categories, so there is no longer a need to coagulate AES128 and 10664 AES256 into a single algorithm bit, and to coagulate Camellia128 10665 and Camellia256 into a single algorithm bit, which has led to all 10666 kinds of kludges. 10667 10668 Thus, among other things, the kludge introduced in 0.9.7m and 10669 0.9.8e for masking out AES256 independently of AES128 or masking 10670 out Camellia256 independently of AES256 is not needed here in 0.9.9. 10671 10672 With the change, we also introduce new ciphersuite aliases that 10673 so far were missing: "AES128", "AES256", "CAMELLIA128", and 10674 "CAMELLIA256". 10675 10676 *Bodo Moeller* 10677 10678 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 10679 Use the leftmost N bytes of the signature input if the input is 10680 larger than the prime q (with N being the size in bytes of q). 10681 10682 *Nils Larsch* 10683 10684 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 10685 it yet and it is largely untested. 10686 10687 *Steve Henson* 10688 10689 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 10690 10691 *Nils Larsch* 10692 10693 * Initial incomplete changes to avoid need for function casts in OpenSSL 10694 some compilers (gcc 4.2 and later) reject their use. Safestack is 10695 reimplemented. Update ASN1 to avoid use of legacy functions. 10696 10697 *Steve Henson* 10698 10699 * Win32/64 targets are linked with Winsock2. 10700 10701 *Andy Polyakov* 10702 10703 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 10704 to external functions. This can be used to increase CRL handling 10705 efficiency especially when CRLs are very large by (for example) storing 10706 the CRL revoked certificates in a database. 10707 10708 *Steve Henson* 10709 10710 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 10711 new CRLs added to a directory can be used. New command line option 10712 -verify_return_error to s_client and s_server. This causes real errors 10713 to be returned by the verify callback instead of carrying on no matter 10714 what. This reflects the way a "real world" verify callback would behave. 10715 10716 *Steve Henson* 10717 10718 * GOST engine, supporting several GOST algorithms and public key formats. 10719 Kindly donated by Cryptocom. 10720 10721 *Cryptocom* 10722 10723 * Partial support for Issuing Distribution Point CRL extension. CRLs 10724 partitioned by DP are handled but no indirect CRL or reason partitioning 10725 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 10726 selected via a scoring technique which handles IDP and AKID in CRLs. 10727 10728 *Steve Henson* 10729 10730 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 10731 will ultimately be used for all verify operations: this will remove the 10732 X509_STORE dependency on certificate verification and allow alternative 10733 lookup methods. X509_STORE based implementations of these two callbacks. 10734 10735 *Steve Henson* 10736 10737 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 10738 Modify get_crl() to find a valid (unexpired) CRL if possible. 10739 10740 *Steve Henson* 10741 10742 * New function X509_CRL_match() to check if two CRLs are identical. Normally 10743 this would be called X509_CRL_cmp() but that name is already used by 10744 a function that just compares CRL issuer names. Cache several CRL 10745 extensions in X509_CRL structure and cache CRLDP in X509. 10746 10747 *Steve Henson* 10748 10749 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 10750 this maps equivalent X509_NAME structures into a consistent structure. 10751 Name comparison can then be performed rapidly using memcmp(). 10752 10753 *Steve Henson* 10754 10755 * Non-blocking OCSP request processing. Add -timeout option to ocsp 10756 utility. 10757 10758 *Steve Henson* 10759 10760 * Allow digests to supply their own micalg string for S/MIME type using 10761 the ctrl EVP_MD_CTRL_MICALG. 10762 10763 *Steve Henson* 10764 10765 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 10766 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 10767 ctrl. It can then customise the structure before and/or after signing 10768 if necessary. 10769 10770 *Steve Henson* 10771 10772 * New function OBJ_add_sigid() to allow application defined signature OIDs 10773 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 10774 to free up any added signature OIDs. 10775 10776 *Steve Henson* 10777 10778 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 10779 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 10780 digest and cipher tables. New options added to openssl utility: 10781 list-message-digest-algorithms and list-cipher-algorithms. 10782 10783 *Steve Henson* 10784 10785 * Change the array representation of binary polynomials: the list 10786 of degrees of non-zero coefficients is now terminated with -1. 10787 Previously it was terminated with 0, which was also part of the 10788 value; thus, the array representation was not applicable to 10789 polynomials where t^0 has coefficient zero. This change makes 10790 the array representation useful in a more general context. 10791 10792 *Douglas Stebila* 10793 10794 * Various modifications and fixes to SSL/TLS cipher string 10795 handling. For ECC, the code now distinguishes between fixed ECDH 10796 with RSA certificates on the one hand and with ECDSA certificates 10797 on the other hand, since these are separate ciphersuites. The 10798 unused code for Fortezza ciphersuites has been removed. 10799 10800 For consistency with EDH, ephemeral ECDH is now called "EECDH" 10801 (not "ECDHE"). For consistency with the code for DH 10802 certificates, use of ECDH certificates is now considered ECDH 10803 authentication, not RSA or ECDSA authentication (the latter is 10804 merely the CA's signing algorithm and not actively used in the 10805 protocol). 10806 10807 The temporary ciphersuite alias "ECCdraft" is no longer 10808 available, and ECC ciphersuites are no longer excluded from "ALL" 10809 and "DEFAULT". The following aliases now exist for RFC 4492 10810 ciphersuites, most of these by analogy with the DH case: 10811 10812 kECDHr - ECDH cert, signed with RSA 10813 kECDHe - ECDH cert, signed with ECDSA 10814 kECDH - ECDH cert (signed with either RSA or ECDSA) 10815 kEECDH - ephemeral ECDH 10816 ECDH - ECDH cert or ephemeral ECDH 10817 10818 aECDH - ECDH cert 10819 aECDSA - ECDSA cert 10820 ECDSA - ECDSA cert 10821 10822 AECDH - anonymous ECDH 10823 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 10824 10825 *Bodo Moeller* 10826 10827 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 10828 Use correct micalg parameters depending on digest(s) in signed message. 10829 10830 *Steve Henson* 10831 10832 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 10833 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 10834 10835 *Steve Henson* 10836 10837 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 10838 an engine to register a method. Add ENGINE lookups for methods and 10839 functional reference processing. 10840 10841 *Steve Henson* 10842 10843 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 10844 `EVP_{Sign,Verify}*` which allow an application to customise the signature 10845 process. 10846 10847 *Steve Henson* 10848 10849 * New -resign option to smime utility. This adds one or more signers 10850 to an existing PKCS#7 signedData structure. Also -md option to use an 10851 alternative message digest algorithm for signing. 10852 10853 *Steve Henson* 10854 10855 * Tidy up PKCS#7 routines and add new functions to make it easier to 10856 create PKCS7 structures containing multiple signers. Update smime 10857 application to support multiple signers. 10858 10859 *Steve Henson* 10860 10861 * New -macalg option to pkcs12 utility to allow setting of an alternative 10862 digest MAC. 10863 10864 *Steve Henson* 10865 10866 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 10867 Reorganize PBE internals to lookup from a static table using NIDs, 10868 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 10869 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 10870 PRF which will be automatically used with PBES2. 10871 10872 *Steve Henson* 10873 10874 * Replace the algorithm specific calls to generate keys in "req" with the 10875 new API. 10876 10877 *Steve Henson* 10878 10879 * Update PKCS#7 enveloped data routines to use new API. This is now 10880 supported by any public key method supporting the encrypt operation. A 10881 ctrl is added to allow the public key algorithm to examine or modify 10882 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 10883 a no op. 10884 10885 *Steve Henson* 10886 10887 * Add a ctrl to asn1 method to allow a public key algorithm to express 10888 a default digest type to use. In most cases this will be SHA1 but some 10889 algorithms (such as GOST) need to specify an alternative digest. The 10890 return value indicates how strong the preference is 1 means optional and 10891 2 is mandatory (that is it is the only supported type). Modify 10892 ASN1_item_sign() to accept a NULL digest argument to indicate it should 10893 use the default md. Update openssl utilities to use the default digest 10894 type for signing if it is not explicitly indicated. 10895 10896 *Steve Henson* 10897 10898 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 10899 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 10900 signing method from the key type. This effectively removes the link 10901 between digests and public key types. 10902 10903 *Steve Henson* 10904 10905 * Add an OID cross reference table and utility functions. Its purpose is to 10906 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 10907 rsaEncryption. This will allow some of the algorithm specific hackery 10908 needed to use the correct OID to be removed. 10909 10910 *Steve Henson* 10911 10912 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 10913 structures for PKCS7_sign(). They are now set up by the relevant public 10914 key ASN1 method. 10915 10916 *Steve Henson* 10917 10918 * Add provisional EC pkey method with support for ECDSA and ECDH. 10919 10920 *Steve Henson* 10921 10922 * Add support for key derivation (agreement) in the API, DH method and 10923 pkeyutl. 10924 10925 *Steve Henson* 10926 10927 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 10928 public and private key formats. As a side effect these add additional 10929 command line functionality not previously available: DSA signatures can be 10930 generated and verified using pkeyutl and DH key support and generation in 10931 pkey, genpkey. 10932 10933 *Steve Henson* 10934 10935 * BeOS support. 10936 10937 *Oliver Tappe <zooey@hirschkaefer.de>* 10938 10939 * New make target "install_html_docs" installs HTML renditions of the 10940 manual pages. 10941 10942 *Oliver Tappe <zooey@hirschkaefer.de>* 10943 10944 * New utility "genpkey" this is analogous to "genrsa" etc except it can 10945 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 10946 support key and parameter generation and add initial key generation 10947 functionality for RSA. 10948 10949 *Steve Henson* 10950 10951 * Add functions for main EVP_PKEY_method operations. The undocumented 10952 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 10953 `EVP_PKEY_{encrypt,decrypt}_old`. 10954 10955 *Steve Henson* 10956 10957 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 10958 key API, doesn't do much yet. 10959 10960 *Steve Henson* 10961 10962 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 10963 public key algorithms. New option to openssl utility: 10964 "list-public-key-algorithms" to print out info. 10965 10966 *Steve Henson* 10967 10968 * Implement the Supported Elliptic Curves Extension for 10969 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 10970 10971 *Douglas Stebila* 10972 10973 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 10974 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 10975 10976 *Steve Henson* 10977 10978 * New utilities pkey and pkeyparam. These are similar to algorithm specific 10979 utilities such as rsa, dsa, dsaparam etc except they process any key 10980 type. 10981 10982 *Steve Henson* 10983 10984 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 10985 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 10986 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 10987 structure. 10988 10989 *Steve Henson* 10990 10991 * Initial support for pluggable public key ASN1. 10992 De-spaghettify the public key ASN1 handling. Move public and private 10993 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 10994 algorithm specific handling to a single module within the relevant 10995 algorithm directory. Add functions to allow (near) opaque processing 10996 of public and private key structures. 10997 10998 *Steve Henson* 10999 11000 * Implement the Supported Point Formats Extension for 11001 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 11002 11003 *Douglas Stebila* 11004 11005 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 11006 for the psk identity [hint] and the psk callback functions to the 11007 SSL_SESSION, SSL and SSL_CTX structure. 11008 11009 New ciphersuites: 11010 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 11011 PSK-AES256-CBC-SHA 11012 11013 New functions: 11014 SSL_CTX_use_psk_identity_hint 11015 SSL_get_psk_identity_hint 11016 SSL_get_psk_identity 11017 SSL_use_psk_identity_hint 11018 11019 *Mika Kousa and Pasi Eronen of Nokia Corporation* 11020 11021 * Add RFC 3161 compliant time stamp request creation, response generation 11022 and response verification functionality. 11023 11024 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 11025 11026 * Add initial support for TLS extensions, specifically for the server_name 11027 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 11028 have new members for a hostname. The SSL data structure has an 11029 additional member `SSL_CTX *initial_ctx` so that new sessions can be 11030 stored in that context to allow for session resumption, even after the 11031 SSL has been switched to a new SSL_CTX in reaction to a client's 11032 server_name extension. 11033 11034 New functions (subject to change): 11035 11036 SSL_get_servername() 11037 SSL_get_servername_type() 11038 SSL_set_SSL_CTX() 11039 11040 New CTRL codes and macros (subject to change): 11041 11042 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 11043 - SSL_CTX_set_tlsext_servername_callback() 11044 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 11045 - SSL_CTX_set_tlsext_servername_arg() 11046 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 11047 11048 openssl s_client has a new '-servername ...' option. 11049 11050 openssl s_server has new options '-servername_host ...', '-cert2 ...', 11051 '-key2 ...', '-servername_fatal' (subject to change). This allows 11052 testing the HostName extension for a specific single hostname ('-cert' 11053 and '-key' remain fallbacks for handshakes without HostName 11054 negotiation). If the unrecognized_name alert has to be sent, this by 11055 default is a warning; it becomes fatal with the '-servername_fatal' 11056 option. 11057 11058 *Peter Sylvester, Remy Allais, Christophe Renou* 11059 11060 * Whirlpool hash implementation is added. 11061 11062 *Andy Polyakov* 11063 11064 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 11065 bn(64,32). Because of instruction set limitations it doesn't have 11066 any negative impact on performance. This was done mostly in order 11067 to make it possible to share assembler modules, such as bn_mul_mont 11068 implementations, between 32- and 64-bit builds without hassle. 11069 11070 *Andy Polyakov* 11071 11072 * Move code previously exiled into file crypto/ec/ec2_smpt.c 11073 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 11074 macro. 11075 11076 *Bodo Moeller* 11077 11078 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 11079 dedicated Montgomery multiplication procedure, is introduced. 11080 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 11081 "64-bit" performance on certain 32-bit targets. 11082 11083 *Andy Polyakov* 11084 11085 * New option SSL_OP_NO_COMP to disable use of compression selectively 11086 in SSL structures. New SSL ctrl to set maximum send fragment size. 11087 Save memory by setting the I/O buffer sizes dynamically instead of 11088 using the maximum available value. 11089 11090 *Steve Henson* 11091 11092 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 11093 in addition to the text details. 11094 11095 *Bodo Moeller* 11096 11097 * Very, very preliminary EXPERIMENTAL support for printing of general 11098 ASN1 structures. This currently produces rather ugly output and doesn't 11099 handle several customised structures at all. 11100 11101 *Steve Henson* 11102 11103 * Integrated support for PVK file format and some related formats such 11104 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 11105 these in the 'rsa' and 'dsa' utilities. 11106 11107 *Steve Henson* 11108 11109 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 11110 11111 *Steve Henson* 11112 11113 * Remove the ancient ASN1_METHOD code. This was only ever used in one 11114 place for the (very old) "NETSCAPE" format certificates which are now 11115 handled using new ASN1 code equivalents. 11116 11117 *Steve Henson* 11118 11119 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 11120 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 11121 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 11122 11123 *Nils Larsch* 11124 11125 * Modify CRL distribution points extension code to print out previously 11126 unsupported fields. Enhance extension setting code to allow setting of 11127 all fields. 11128 11129 *Steve Henson* 11130 11131 * Add print and set support for Issuing Distribution Point CRL extension. 11132 11133 *Steve Henson* 11134 11135 * Change 'Configure' script to enable Camellia by default. 11136 11137 *NTT* 11138 11139OpenSSL 0.9.x 11140------------- 11141 11142### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 11143 11144 * When rejecting SSL/TLS records due to an incorrect version number, never 11145 update s->server with a new major version number. As of 11146 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 11147 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 11148 the previous behavior could result in a read attempt at NULL when 11149 receiving specific incorrect SSL/TLS records once record payload 11150 protection is active. ([CVE-2010-0740]) 11151 11152 *Bodo Moeller, Adam Langley <agl@chromium.org>* 11153 11154 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 11155 could be crashed if the relevant tables were not present (e.g. chrooted). 11156 11157 *Tomas Hoger <thoger@redhat.com>* 11158 11159### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 11160 11161 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 11162 11163 *Martin Olsson, Neel Mehta* 11164 11165 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 11166 accommodate for stack sorting, always a write lock!). 11167 11168 *Bodo Moeller* 11169 11170 * On some versions of WIN32 Heap32Next is very slow. This can cause 11171 excessive delays in the RAND_poll(): over a minute. As a workaround 11172 include a time check in the inner Heap32Next loop too. 11173 11174 *Steve Henson* 11175 11176 * The code that handled flushing of data in SSL/TLS originally used the 11177 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 11178 the problem outlined in PR#1949. The fix suggested there however can 11179 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 11180 of Apache). So instead simplify the code to flush unconditionally. 11181 This should be fine since flushing with no data to flush is a no op. 11182 11183 *Steve Henson* 11184 11185 * Handle TLS versions 2.0 and later properly and correctly use the 11186 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 11187 off ancient servers have a habit of sticking around for a while... 11188 11189 *Steve Henson* 11190 11191 * Modify compression code so it frees up structures without using the 11192 ex_data callbacks. This works around a problem where some applications 11193 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 11194 restarting) then use compression (e.g. SSL with compression) later. 11195 This results in significant per-connection memory leaks and 11196 has caused some security issues including CVE-2008-1678 and 11197 CVE-2009-4355. 11198 11199 *Steve Henson* 11200 11201 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 11202 change when encrypting or decrypting. 11203 11204 *Bodo Moeller* 11205 11206 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 11207 connect and renegotiate with servers which do not support RI. 11208 Until RI is more widely deployed this option is enabled by default. 11209 11210 *Steve Henson* 11211 11212 * Add "missing" ssl ctrls to clear options and mode. 11213 11214 *Steve Henson* 11215 11216 * If client attempts to renegotiate and doesn't support RI respond with 11217 a no_renegotiation alert as required by RFC5746. Some renegotiating 11218 TLS clients will continue a connection gracefully when they receive 11219 the alert. Unfortunately OpenSSL mishandled this alert and would hang 11220 waiting for a server hello which it will never receive. Now we treat a 11221 received no_renegotiation alert as a fatal error. This is because 11222 applications requesting a renegotiation might well expect it to succeed 11223 and would have no code in place to handle the server denying it so the 11224 only safe thing to do is to terminate the connection. 11225 11226 *Steve Henson* 11227 11228 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 11229 peer supports secure renegotiation and 0 otherwise. Print out peer 11230 renegotiation support in s_client/s_server. 11231 11232 *Steve Henson* 11233 11234 * Replace the highly broken and deprecated SPKAC certification method with 11235 the updated NID creation version. This should correctly handle UTF8. 11236 11237 *Steve Henson* 11238 11239 * Implement RFC5746. Re-enable renegotiation but require the extension 11240 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 11241 turns out to be a bad idea. It has been replaced by 11242 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 11243 SSL_CTX_set_options(). This is really not recommended unless you 11244 know what you are doing. 11245 11246 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 11247 11248 * Fixes to stateless session resumption handling. Use initial_ctx when 11249 issuing and attempting to decrypt tickets in case it has changed during 11250 servername handling. Use a non-zero length session ID when attempting 11251 stateless session resumption: this makes it possible to determine if 11252 a resumption has occurred immediately after receiving server hello 11253 (several places in OpenSSL subtly assume this) instead of later in 11254 the handshake. 11255 11256 *Steve Henson* 11257 11258 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 11259 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 11260 fixes for a few places where the return code is not checked 11261 correctly. 11262 11263 *Julia Lawall <julia@diku.dk>* 11264 11265 * Add --strict-warnings option to Configure script to include devteam 11266 warnings in other configurations. 11267 11268 *Steve Henson* 11269 11270 * Add support for --libdir option and LIBDIR variable in makefiles. This 11271 makes it possible to install openssl libraries in locations which 11272 have names other than "lib", for example "/usr/lib64" which some 11273 systems need. 11274 11275 *Steve Henson, based on patch from Jeremy Utley* 11276 11277 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 11278 X690 8.9.12 and can produce some misleading textual output of OIDs. 11279 11280 *Steve Henson, reported by Dan Kaminsky* 11281 11282 * Delete MD2 from algorithm tables. This follows the recommendation in 11283 several standards that it is not used in new applications due to 11284 several cryptographic weaknesses. For binary compatibility reasons 11285 the MD2 API is still compiled in by default. 11286 11287 *Steve Henson* 11288 11289 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 11290 and restored. 11291 11292 *Steve Henson* 11293 11294 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 11295 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 11296 clash. 11297 11298 *Guenter <lists@gknw.net>* 11299 11300 * Fix the server certificate chain building code to use X509_verify_cert(), 11301 it used to have an ad-hoc builder which was unable to cope with anything 11302 other than a simple chain. 11303 11304 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 11305 11306 * Don't check self signed certificate signatures in X509_verify_cert() 11307 by default (a flag can override this): it just wastes time without 11308 adding any security. As a useful side effect self signed root CAs 11309 with non-FIPS digests are now usable in FIPS mode. 11310 11311 *Steve Henson* 11312 11313 * In dtls1_process_out_of_seq_message() the check if the current message 11314 is already buffered was missing. For every new message was memory 11315 allocated, allowing an attacker to perform an denial of service attack 11316 with sending out of seq handshake messages until there is no memory 11317 left. Additionally every future message was buffered, even if the 11318 sequence number made no sense and would be part of another handshake. 11319 So only messages with sequence numbers less than 10 in advance will be 11320 buffered. ([CVE-2009-1378]) 11321 11322 *Robin Seggelmann, discovered by Daniel Mentz* 11323 11324 * Records are buffered if they arrive with a future epoch to be 11325 processed after finishing the corresponding handshake. There is 11326 currently no limitation to this buffer allowing an attacker to perform 11327 a DOS attack with sending records with future epochs until there is no 11328 memory left. This patch adds the pqueue_size() function to determine 11329 the size of a buffer and limits the record buffer to 100 entries. 11330 ([CVE-2009-1377]) 11331 11332 *Robin Seggelmann, discovered by Daniel Mentz* 11333 11334 * Keep a copy of frag->msg_header.frag_len so it can be used after the 11335 parent structure is freed. ([CVE-2009-1379]) 11336 11337 *Daniel Mentz* 11338 11339 * Handle non-blocking I/O properly in SSL_shutdown() call. 11340 11341 *Darryl Miles <darryl-mailinglists@netbauds.net>* 11342 11343 * Add `2.5.4.*` OIDs 11344 11345 *Ilya O. <vrghost@gmail.com>* 11346 11347### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 11348 11349 * Disable renegotiation completely - this fixes a severe security 11350 problem ([CVE-2009-3555]) at the cost of breaking all 11351 renegotiation. Renegotiation can be re-enabled by setting 11352 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 11353 run-time. This is really not recommended unless you know what 11354 you're doing. 11355 11356 *Ben Laurie* 11357 11358### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 11359 11360 * Don't set val to NULL when freeing up structures, it is freed up by 11361 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 11362 zeroing past the valid field. ([CVE-2009-0789]) 11363 11364 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 11365 11366 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 11367 checked correctly. This would allow some invalid signed attributes to 11368 appear to verify correctly. ([CVE-2009-0591]) 11369 11370 *Ivan Nestlerode <inestlerode@us.ibm.com>* 11371 11372 * Reject UniversalString and BMPString types with invalid lengths. This 11373 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 11374 a legal length. ([CVE-2009-0590]) 11375 11376 *Steve Henson* 11377 11378 * Set S/MIME signing as the default purpose rather than setting it 11379 unconditionally. This allows applications to override it at the store 11380 level. 11381 11382 *Steve Henson* 11383 11384 * Permit restricted recursion of ASN1 strings. This is needed in practice 11385 to handle some structures. 11386 11387 *Steve Henson* 11388 11389 * Improve efficiency of mem_gets: don't search whole buffer each time 11390 for a '\n' 11391 11392 *Jeremy Shapiro <jnshapir@us.ibm.com>* 11393 11394 * New -hex option for openssl rand. 11395 11396 *Matthieu Herrb* 11397 11398 * Print out UTF8String and NumericString when parsing ASN1. 11399 11400 *Steve Henson* 11401 11402 * Support NumericString type for name components. 11403 11404 *Steve Henson* 11405 11406 * Allow CC in the environment to override the automatically chosen 11407 compiler. Note that nothing is done to ensure flags work with the 11408 chosen compiler. 11409 11410 *Ben Laurie* 11411 11412### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 11413 11414 * Properly check EVP_VerifyFinal() and similar return values 11415 ([CVE-2008-5077]). 11416 11417 *Ben Laurie, Bodo Moeller, Google Security Team* 11418 11419 * Enable TLS extensions by default. 11420 11421 *Ben Laurie* 11422 11423 * Allow the CHIL engine to be loaded, whether the application is 11424 multithreaded or not. (This does not release the developer from the 11425 obligation to set up the dynamic locking callbacks.) 11426 11427 *Sander Temme <sander@temme.net>* 11428 11429 * Use correct exit code if there is an error in dgst command. 11430 11431 *Steve Henson; problem pointed out by Roland Dirlewanger* 11432 11433 * Tweak Configure so that you need to say "experimental-jpake" to enable 11434 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 11435 11436 *Bodo Moeller* 11437 11438 * Add experimental JPAKE support, including demo authentication in 11439 s_client and s_server. 11440 11441 *Ben Laurie* 11442 11443 * Set the comparison function in v3_addr_canonize(). 11444 11445 *Rob Austein <sra@hactrn.net>* 11446 11447 * Add support for XMPP STARTTLS in s_client. 11448 11449 *Philip Paeps <philip@freebsd.org>* 11450 11451 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 11452 to ensure that even with this option, only ciphersuites in the 11453 server's preference list will be accepted. (Note that the option 11454 applies only when resuming a session, so the earlier behavior was 11455 just about the algorithm choice for symmetric cryptography.) 11456 11457 *Bodo Moeller* 11458 11459### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 11460 11461 * Fix NULL pointer dereference if a DTLS server received 11462 ChangeCipherSpec as first record ([CVE-2009-1386]). 11463 11464 *PR #1679* 11465 11466 * Fix a state transition in s3_srvr.c and d1_srvr.c 11467 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 11468 11469 *Nagendra Modadugu* 11470 11471 * The fix in 0.9.8c that supposedly got rid of unsafe 11472 double-checked locking was incomplete for RSA blinding, 11473 addressing just one layer of what turns out to have been 11474 doubly unsafe triple-checked locking. 11475 11476 So now fix this for real by retiring the MONT_HELPER macro 11477 in crypto/rsa/rsa_eay.c. 11478 11479 *Bodo Moeller; problem pointed out by Marius Schilder* 11480 11481 * Various precautionary measures: 11482 11483 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 11484 11485 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 11486 (NB: This would require knowledge of the secret session ticket key 11487 to exploit, in which case you'd be SOL either way.) 11488 11489 - Change bn_nist.c so that it will properly handle input BIGNUMs 11490 outside the expected range. 11491 11492 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 11493 builds. 11494 11495 *Neel Mehta, Bodo Moeller* 11496 11497 * Allow engines to be "soft loaded" - i.e. optionally don't die if 11498 the load fails. Useful for distros. 11499 11500 *Ben Laurie and the FreeBSD team* 11501 11502 * Add support for Local Machine Keyset attribute in PKCS#12 files. 11503 11504 *Steve Henson* 11505 11506 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 11507 11508 *Huang Ying* 11509 11510 * Expand ENGINE to support engine supplied SSL client certificate functions. 11511 11512 This work was sponsored by Logica. 11513 11514 *Steve Henson* 11515 11516 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 11517 keystores. Support for SSL/TLS client authentication too. 11518 Not compiled unless enable-capieng specified to Configure. 11519 11520 This work was sponsored by Logica. 11521 11522 *Steve Henson* 11523 11524 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 11525 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 11526 attribute creation routines such as certificate requests and PKCS#12 11527 files. 11528 11529 *Steve Henson* 11530 11531### Changes between 0.9.8g and 0.9.8h [28 May 2008] 11532 11533 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 11534 handshake which could lead to a client crash as found using the 11535 Codenomicon TLS test suite ([CVE-2008-1672]) 11536 11537 *Steve Henson, Mark Cox* 11538 11539 * Fix double free in TLS server name extensions which could lead to 11540 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 11541 11542 *Joe Orton* 11543 11544 * Clear error queue in SSL_CTX_use_certificate_chain_file() 11545 11546 Clear the error queue to ensure that error entries left from 11547 older function calls do not interfere with the correct operation. 11548 11549 *Lutz Jaenicke, Erik de Castro Lopo* 11550 11551 * Remove root CA certificates of commercial CAs: 11552 11553 The OpenSSL project does not recommend any specific CA and does not 11554 have any policy with respect to including or excluding any CA. 11555 Therefore, it does not make any sense to ship an arbitrary selection 11556 of root CA certificates with the OpenSSL software. 11557 11558 *Lutz Jaenicke* 11559 11560 * RSA OAEP patches to fix two separate invalid memory reads. 11561 The first one involves inputs when 'lzero' is greater than 11562 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 11563 before the beginning of from). The second one involves inputs where 11564 the 'db' section contains nothing but zeroes (there is a one-byte 11565 invalid read after the end of 'db'). 11566 11567 *Ivan Nestlerode <inestlerode@us.ibm.com>* 11568 11569 * Partial backport from 0.9.9-dev: 11570 11571 Introduce bn_mul_mont (dedicated Montgomery multiplication 11572 procedure) as a candidate for BIGNUM assembler implementation. 11573 While 0.9.9-dev uses assembler for various architectures, only 11574 x86_64 is available by default here in the 0.9.8 branch, and 11575 32-bit x86 is available through a compile-time setting. 11576 11577 To try the 32-bit x86 assembler implementation, use Configure 11578 option "enable-montasm" (which exists only for this backport). 11579 11580 As "enable-montasm" for 32-bit x86 disclaims code stability 11581 anyway, in this constellation we activate additional code 11582 backported from 0.9.9-dev for further performance improvements, 11583 namely BN_from_montgomery_word. (To enable this otherwise, 11584 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 11585 11586 *Andy Polyakov (backport partially by Bodo Moeller)* 11587 11588 * Add TLS session ticket callback. This allows an application to set 11589 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 11590 values. This is useful for key rollover for example where several key 11591 sets may exist with different names. 11592 11593 *Steve Henson* 11594 11595 * Reverse ENGINE-internal logic for caching default ENGINE handles. 11596 This was broken until now in 0.9.8 releases, such that the only way 11597 a registered ENGINE could be used (assuming it initialises 11598 successfully on the host) was to explicitly set it as the default 11599 for the relevant algorithms. This is in contradiction with 0.9.7 11600 behaviour and the documentation. With this fix, when an ENGINE is 11601 registered into a given algorithm's table of implementations, the 11602 'uptodate' flag is reset so that auto-discovery will be used next 11603 time a new context for that algorithm attempts to select an 11604 implementation. 11605 11606 *Ian Lister (tweaked by Geoff Thorpe)* 11607 11608 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 11609 implementation in the following ways: 11610 11611 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 11612 hard coded. 11613 11614 Lack of BER streaming support means one pass streaming processing is 11615 only supported if data is detached: setting the streaming flag is 11616 ignored for embedded content. 11617 11618 CMS support is disabled by default and must be explicitly enabled 11619 with the enable-cms configuration option. 11620 11621 *Steve Henson* 11622 11623 * Update the GMP engine glue to do direct copies between BIGNUM and 11624 mpz_t when openssl and GMP use the same limb size. Otherwise the 11625 existing "conversion via a text string export" trick is still used. 11626 11627 *Paul Sheer <paulsheer@gmail.com>* 11628 11629 * Zlib compression BIO. This is a filter BIO which compressed and 11630 uncompresses any data passed through it. 11631 11632 *Steve Henson* 11633 11634 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 11635 RFC3394 compatible AES key wrapping. 11636 11637 *Steve Henson* 11638 11639 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 11640 sets string data without copying. X509_ALGOR_set0() and 11641 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 11642 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 11643 from an X509_ATTRIBUTE structure optionally checking it occurs only 11644 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 11645 data. 11646 11647 *Steve Henson* 11648 11649 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 11650 to get the expected BN_FLG_CONSTTIME behavior. 11651 11652 *Bodo Moeller (Google)* 11653 11654 * Netware support: 11655 11656 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 11657 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 11658 - added some more tests to do_tests.pl 11659 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 11660 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 11661 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 11662 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 11663 - various changes to netware.pl to enable gcc-cross builds on Win32 11664 platform 11665 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 11666 - various changes to fix missing prototype warnings 11667 - fixed x86nasm.pl to create correct asm files for NASM COFF output 11668 - added AES, WHIRLPOOL and CPUID assembler code to build files 11669 - added missing AES assembler make rules to mk1mf.pl 11670 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 11671 11672 *Guenter Knauf <eflash@gmx.net>* 11673 11674 * Implement certificate status request TLS extension defined in RFC3546. 11675 A client can set the appropriate parameters and receive the encoded 11676 OCSP response via a callback. A server can query the supplied parameters 11677 and set the encoded OCSP response in the callback. Add simplified examples 11678 to s_client and s_server. 11679 11680 *Steve Henson* 11681 11682### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 11683 11684 * Fix various bugs: 11685 + Binary incompatibility of ssl_ctx_st structure 11686 + DTLS interoperation with non-compliant servers 11687 + Don't call get_session_cb() without proposed session 11688 + Fix ia64 assembler code 11689 11690 *Andy Polyakov, Steve Henson* 11691 11692### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 11693 11694 * DTLS Handshake overhaul. There were longstanding issues with 11695 OpenSSL DTLS implementation, which were making it impossible for 11696 RFC 4347 compliant client to communicate with OpenSSL server. 11697 Unfortunately just fixing these incompatibilities would "cut off" 11698 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 11699 server keeps tolerating non RFC compliant syntax. The opposite is 11700 not true, 0.9.8f client can not communicate with earlier server. 11701 This update even addresses CVE-2007-4995. 11702 11703 *Andy Polyakov* 11704 11705 * Changes to avoid need for function casts in OpenSSL: some compilers 11706 (gcc 4.2 and later) reject their use. 11707 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 11708 Steve Henson* 11709 11710 * Add RFC4507 support to OpenSSL. This includes the corrections in 11711 RFC4507bis. The encrypted ticket format is an encrypted encoded 11712 SSL_SESSION structure, that way new session features are automatically 11713 supported. 11714 11715 If a client application caches session in an SSL_SESSION structure 11716 support is transparent because tickets are now stored in the encoded 11717 SSL_SESSION. 11718 11719 The SSL_CTX structure automatically generates keys for ticket 11720 protection in servers so again support should be possible 11721 with no application modification. 11722 11723 If a client or server wishes to disable RFC4507 support then the option 11724 SSL_OP_NO_TICKET can be set. 11725 11726 Add a TLS extension debugging callback to allow the contents of any client 11727 or server extensions to be examined. 11728 11729 This work was sponsored by Google. 11730 11731 *Steve Henson* 11732 11733 * Add initial support for TLS extensions, specifically for the server_name 11734 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 11735 have new members for a hostname. The SSL data structure has an 11736 additional member `SSL_CTX *initial_ctx` so that new sessions can be 11737 stored in that context to allow for session resumption, even after the 11738 SSL has been switched to a new SSL_CTX in reaction to a client's 11739 server_name extension. 11740 11741 New functions (subject to change): 11742 11743 SSL_get_servername() 11744 SSL_get_servername_type() 11745 SSL_set_SSL_CTX() 11746 11747 New CTRL codes and macros (subject to change): 11748 11749 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 11750 - SSL_CTX_set_tlsext_servername_callback() 11751 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 11752 - SSL_CTX_set_tlsext_servername_arg() 11753 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 11754 11755 openssl s_client has a new '-servername ...' option. 11756 11757 openssl s_server has new options '-servername_host ...', '-cert2 ...', 11758 '-key2 ...', '-servername_fatal' (subject to change). This allows 11759 testing the HostName extension for a specific single hostname ('-cert' 11760 and '-key' remain fallbacks for handshakes without HostName 11761 negotiation). If the unrecognized_name alert has to be sent, this by 11762 default is a warning; it becomes fatal with the '-servername_fatal' 11763 option. 11764 11765 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 11766 11767 * Add AES and SSE2 assembly language support to VC++ build. 11768 11769 *Steve Henson* 11770 11771 * Mitigate attack on final subtraction in Montgomery reduction. 11772 11773 *Andy Polyakov* 11774 11775 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 11776 (which previously caused an internal error). 11777 11778 *Bodo Moeller* 11779 11780 * Squeeze another 10% out of IGE mode when in != out. 11781 11782 *Ben Laurie* 11783 11784 * AES IGE mode speedup. 11785 11786 *Dean Gaudet (Google)* 11787 11788 * Add the Korean symmetric 128-bit cipher SEED (see 11789 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 11790 add SEED ciphersuites from RFC 4162: 11791 11792 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 11793 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 11794 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 11795 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 11796 11797 To minimize changes between patchlevels in the OpenSSL 0.9.8 11798 series, SEED remains excluded from compilation unless OpenSSL 11799 is configured with 'enable-seed'. 11800 11801 *KISA, Bodo Moeller* 11802 11803 * Mitigate branch prediction attacks, which can be practical if a 11804 single processor is shared, allowing a spy process to extract 11805 information. For detailed background information, see 11806 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 11807 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 11808 and Necessary Software Countermeasures"). The core of the change 11809 are new versions BN_div_no_branch() and 11810 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 11811 respectively, which are slower, but avoid the security-relevant 11812 conditional branches. These are automatically called by BN_div() 11813 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 11814 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 11815 remove a conditional branch. 11816 11817 BN_FLG_CONSTTIME is the new name for the previous 11818 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 11819 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 11820 in the exponent causes BN_mod_exp_mont() to use the alternative 11821 implementation in BN_mod_exp_mont_consttime().) The old name 11822 remains as a deprecated alias. 11823 11824 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 11825 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 11826 constant-time implementations for more than just exponentiation. 11827 Here too the old name is kept as a deprecated alias. 11828 11829 BN_BLINDING_new() will now use BN_dup() for the modulus so that 11830 the BN_BLINDING structure gets an independent copy of the 11831 modulus. This means that the previous `BIGNUM *m` argument to 11832 BN_BLINDING_new() and to BN_BLINDING_create_param() now 11833 essentially becomes `const BIGNUM *m`, although we can't actually 11834 change this in the header file before 0.9.9. It allows 11835 RSA_setup_blinding() to use BN_with_flags() on the modulus to 11836 enable BN_FLG_CONSTTIME. 11837 11838 *Matthew D Wood (Intel Corp)* 11839 11840 * In the SSL/TLS server implementation, be strict about session ID 11841 context matching (which matters if an application uses a single 11842 external cache for different purposes). Previously, 11843 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 11844 set. This did ensure strict client verification, but meant that, 11845 with applications using a single external cache for quite 11846 different requirements, clients could circumvent ciphersuite 11847 restrictions for a given session ID context by starting a session 11848 in a different context. 11849 11850 *Bodo Moeller* 11851 11852 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 11853 a ciphersuite string such as "DEFAULT:RSA" cannot enable 11854 authentication-only ciphersuites. 11855 11856 *Bodo Moeller* 11857 11858 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 11859 not complete and could lead to a possible single byte overflow 11860 ([CVE-2007-5135]) [Ben Laurie] 11861 11862### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 11863 11864 * Since AES128 and AES256 (and similarly Camellia128 and 11865 Camellia256) share a single mask bit in the logic of 11866 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 11867 kludge to work properly if AES128 is available and AES256 isn't 11868 (or if Camellia128 is available and Camellia256 isn't). 11869 11870 *Victor Duchovni* 11871 11872 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 11873 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 11874 When a point or a seed is encoded in a BIT STRING, we need to 11875 prevent the removal of trailing zero bits to get the proper DER 11876 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 11877 of a NamedBitList, for which trailing 0 bits need to be removed.) 11878 11879 *Bodo Moeller* 11880 11881 * Have SSL/TLS server implementation tolerate "mismatched" record 11882 protocol version while receiving ClientHello even if the 11883 ClientHello is fragmented. (The server can't insist on the 11884 particular protocol version it has chosen before the ServerHello 11885 message has informed the client about his choice.) 11886 11887 *Bodo Moeller* 11888 11889 * Add RFC 3779 support. 11890 11891 *Rob Austein for ARIN, Ben Laurie* 11892 11893 * Load error codes if they are not already present instead of using a 11894 static variable. This allows them to be cleanly unloaded and reloaded. 11895 Improve header file function name parsing. 11896 11897 *Steve Henson* 11898 11899 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 11900 or CAPABILITY handshake as required by RFCs. 11901 11902 *Goetz Babin-Ebell* 11903 11904### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 11905 11906 * Introduce limits to prevent malicious keys being able to 11907 cause a denial of service. ([CVE-2006-2940]) 11908 11909 *Steve Henson, Bodo Moeller* 11910 11911 * Fix ASN.1 parsing of certain invalid structures that can result 11912 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 11913 11914 * Fix buffer overflow in SSL_get_shared_ciphers() function. 11915 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 11916 11917 * Fix SSL client code which could crash if connecting to a 11918 malicious SSLv2 server. ([CVE-2006-4343]) 11919 11920 *Tavis Ormandy and Will Drewry, Google Security Team* 11921 11922 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 11923 match only those. Before that, "AES256-SHA" would be interpreted 11924 as a pattern and match "AES128-SHA" too (since AES128-SHA got 11925 the same strength classification in 0.9.7h) as we currently only 11926 have a single AES bit in the ciphersuite description bitmap. 11927 That change, however, also applied to ciphersuite strings such as 11928 "RC4-MD5" that intentionally matched multiple ciphersuites -- 11929 namely, SSL 2.0 ciphersuites in addition to the more common ones 11930 from SSL 3.0/TLS 1.0. 11931 11932 So we change the selection algorithm again: Naming an explicit 11933 ciphersuite selects this one ciphersuite, and any other similar 11934 ciphersuite (same bitmap) from *other* protocol versions. 11935 Thus, "RC4-MD5" again will properly select both the SSL 2.0 11936 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 11937 11938 Since SSL 2.0 does not have any ciphersuites for which the 11939 128/256 bit distinction would be relevant, this works for now. 11940 The proper fix will be to use different bits for AES128 and 11941 AES256, which would have avoided the problems from the beginning; 11942 however, bits are scarce, so we can only do this in a new release 11943 (not just a patchlevel) when we can change the SSL_CIPHER 11944 definition to split the single 'unsigned long mask' bitmap into 11945 multiple values to extend the available space. 11946 11947 *Bodo Moeller* 11948 11949### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 11950 11951 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 11952 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 11953 11954 * Add AES IGE and biIGE modes. 11955 11956 *Ben Laurie* 11957 11958 * Change the Unix randomness entropy gathering to use poll() when 11959 possible instead of select(), since the latter has some 11960 undesirable limitations. 11961 11962 *Darryl Miles via Richard Levitte and Bodo Moeller* 11963 11964 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 11965 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 11966 cannot be implicitly activated as part of, e.g., the "AES" alias. 11967 However, please upgrade to OpenSSL 0.9.9[-dev] for 11968 non-experimental use of the ECC ciphersuites to get TLS extension 11969 support, which is required for curve and point format negotiation 11970 to avoid potential handshake problems. 11971 11972 *Bodo Moeller* 11973 11974 * Disable rogue ciphersuites: 11975 11976 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 11977 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 11978 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 11979 11980 The latter two were purportedly from 11981 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 11982 appear there. 11983 11984 Also deactivate the remaining ciphersuites from 11985 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 11986 unofficial, and the ID has long expired. 11987 11988 *Bodo Moeller* 11989 11990 * Fix RSA blinding Heisenbug (problems sometimes occurred on 11991 dual-core machines) and other potential thread-safety issues. 11992 11993 *Bodo Moeller* 11994 11995 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 11996 versions), which is now available for royalty-free use 11997 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 11998 Also, add Camellia TLS ciphersuites from RFC 4132. 11999 12000 To minimize changes between patchlevels in the OpenSSL 0.9.8 12001 series, Camellia remains excluded from compilation unless OpenSSL 12002 is configured with 'enable-camellia'. 12003 12004 *NTT* 12005 12006 * Disable the padding bug check when compression is in use. The padding 12007 bug check assumes the first packet is of even length, this is not 12008 necessarily true if compression is enabled and can result in false 12009 positives causing handshake failure. The actual bug test is ancient 12010 code so it is hoped that implementations will either have fixed it by 12011 now or any which still have the bug do not support compression. 12012 12013 *Steve Henson* 12014 12015### Changes between 0.9.8a and 0.9.8b [04 May 2006] 12016 12017 * When applying a cipher rule check to see if string match is an explicit 12018 cipher suite and only match that one cipher suite if it is. 12019 12020 *Steve Henson* 12021 12022 * Link in manifests for VC++ if needed. 12023 12024 *Austin Ziegler <halostatue@gmail.com>* 12025 12026 * Update support for ECC-based TLS ciphersuites according to 12027 draft-ietf-tls-ecc-12.txt with proposed changes (but without 12028 TLS extensions, which are supported starting with the 0.9.9 12029 branch, not in the OpenSSL 0.9.8 branch). 12030 12031 *Douglas Stebila* 12032 12033 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 12034 opaque EVP_CIPHER_CTX handling. 12035 12036 *Steve Henson* 12037 12038 * Fixes and enhancements to zlib compression code. We now only use 12039 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 12040 to conform with the standards mentioned here: 12041 <http://www.zlib.net/DLL_FAQ.txt> 12042 Static zlib linking now works on Windows and the new --with-zlib-include 12043 --with-zlib-lib options to Configure can be used to supply the location 12044 of the headers and library. Gracefully handle case where zlib library 12045 can't be loaded. 12046 12047 *Steve Henson* 12048 12049 * Several fixes and enhancements to the OID generation code. The old code 12050 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 12051 handle numbers larger than ULONG_MAX, truncated printing and had a 12052 non standard OBJ_obj2txt() behaviour. 12053 12054 *Steve Henson* 12055 12056 * Add support for building of engines under engine/ as shared libraries 12057 under VC++ build system. 12058 12059 *Steve Henson* 12060 12061 * Corrected the numerous bugs in the Win32 path splitter in DSO. 12062 Hopefully, we will not see any false combination of paths any more. 12063 12064 *Richard Levitte* 12065 12066### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 12067 12068 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 12069 (part of SSL_OP_ALL). This option used to disable the 12070 countermeasure against man-in-the-middle protocol-version 12071 rollback in the SSL 2.0 server implementation, which is a bad 12072 idea. ([CVE-2005-2969]) 12073 12074 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 12075 for Information Security, National Institute of Advanced Industrial 12076 Science and Technology [AIST], Japan)* 12077 12078 * Add two function to clear and return the verify parameter flags. 12079 12080 *Steve Henson* 12081 12082 * Keep cipherlists sorted in the source instead of sorting them at 12083 runtime, thus removing the need for a lock. 12084 12085 *Nils Larsch* 12086 12087 * Avoid some small subgroup attacks in Diffie-Hellman. 12088 12089 *Nick Mathewson and Ben Laurie* 12090 12091 * Add functions for well-known primes. 12092 12093 *Nick Mathewson* 12094 12095 * Extended Windows CE support. 12096 12097 *Satoshi Nakamura and Andy Polyakov* 12098 12099 * Initialize SSL_METHOD structures at compile time instead of during 12100 runtime, thus removing the need for a lock. 12101 12102 *Steve Henson* 12103 12104 * Make PKCS7_decrypt() work even if no certificate is supplied by 12105 attempting to decrypt each encrypted key in turn. Add support to 12106 smime utility. 12107 12108 *Steve Henson* 12109 12110### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 12111 12112[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 12113OpenSSL 0.9.8.] 12114 12115 * Add libcrypto.pc and libssl.pc for those who feel they need them. 12116 12117 *Richard Levitte* 12118 12119 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 12120 key into the same file any more. 12121 12122 *Richard Levitte* 12123 12124 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 12125 12126 *Andy Polyakov* 12127 12128 * Add -utf8 command line and config file option to 'ca'. 12129 12130 *Stefan <stf@udoma.org* 12131 12132 * Removed the macro des_crypt(), as it seems to conflict with some 12133 libraries. Use DES_crypt(). 12134 12135 *Richard Levitte* 12136 12137 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 12138 involves renaming the source and generated shared-libs for 12139 both. The engines will accept the corrected or legacy ids 12140 ('ncipher' and '4758_cca' respectively) when binding. NB, 12141 this only applies when building 'shared'. 12142 12143 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 12144 12145 * Add attribute functions to EVP_PKEY structure. Modify 12146 PKCS12_create() to recognize a CSP name attribute and 12147 use it. Make -CSP option work again in pkcs12 utility. 12148 12149 *Steve Henson* 12150 12151 * Add new functionality to the bn blinding code: 12152 - automatic re-creation of the BN_BLINDING parameters after 12153 a fixed number of uses (currently 32) 12154 - add new function for parameter creation 12155 - introduce flags to control the update behaviour of the 12156 BN_BLINDING parameters 12157 - hide BN_BLINDING structure 12158 Add a second BN_BLINDING slot to the RSA structure to improve 12159 performance when a single RSA object is shared among several 12160 threads. 12161 12162 *Nils Larsch* 12163 12164 * Add support for DTLS. 12165 12166 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 12167 12168 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 12169 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 12170 12171 *Walter Goulet* 12172 12173 * Remove buggy and incomplete DH cert support from 12174 ssl/ssl_rsa.c and ssl/s3_both.c 12175 12176 *Nils Larsch* 12177 12178 * Use SHA-1 instead of MD5 as the default digest algorithm for 12179 the `apps/openssl` commands. 12180 12181 *Nils Larsch* 12182 12183 * Compile clean with "-Wall -Wmissing-prototypes 12184 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 12185 DEBUG_SAFESTACK must also be set. 12186 12187 *Ben Laurie* 12188 12189 * Change ./Configure so that certain algorithms can be disabled by default. 12190 The new counterpiece to "no-xxx" is "enable-xxx". 12191 12192 The patented RC5 and MDC2 algorithms will now be disabled unless 12193 "enable-rc5" and "enable-mdc2", respectively, are specified. 12194 12195 (IDEA remains enabled despite being patented. This is because IDEA 12196 is frequently required for interoperability, and there is no license 12197 fee for non-commercial use. As before, "no-idea" can be used to 12198 avoid this algorithm.) 12199 12200 *Bodo Moeller* 12201 12202 * Add processing of proxy certificates (see RFC 3820). This work was 12203 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 12204 EGEE (Enabling Grids for E-science in Europe). 12205 12206 *Richard Levitte* 12207 12208 * RC4 performance overhaul on modern architectures/implementations, such 12209 as Intel P4, IA-64 and AMD64. 12210 12211 *Andy Polyakov* 12212 12213 * New utility extract-section.pl. This can be used specify an alternative 12214 section number in a pod file instead of having to treat each file as 12215 a separate case in Makefile. This can be done by adding two lines to the 12216 pod file: 12217 12218 =for comment openssl_section:XXX 12219 12220 The blank line is mandatory. 12221 12222 *Steve Henson* 12223 12224 * New arguments -certform, -keyform and -pass for s_client and s_server 12225 to allow alternative format key and certificate files and passphrase 12226 sources. 12227 12228 *Steve Henson* 12229 12230 * New structure X509_VERIFY_PARAM which combines current verify parameters, 12231 update associated structures and add various utility functions. 12232 12233 Add new policy related verify parameters, include policy checking in 12234 standard verify code. Enhance 'smime' application with extra parameters 12235 to support policy checking and print out. 12236 12237 *Steve Henson* 12238 12239 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 12240 Nehemiah processors. These extensions support AES encryption in hardware 12241 as well as RNG (though RNG support is currently disabled). 12242 12243 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 12244 12245 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 12246 12247 *Geoff Thorpe* 12248 12249 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 12250 12251 *Andy Polyakov and a number of other people* 12252 12253 * Improved PowerPC platform support. Most notably BIGNUM assembler 12254 implementation contributed by IBM. 12255 12256 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 12257 12258 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 12259 exponent rather than 'unsigned long'. There is a corresponding change to 12260 the new 'rsa_keygen' element of the RSA_METHOD structure. 12261 12262 *Jelte Jansen, Geoff Thorpe* 12263 12264 * Functionality for creating the initial serial number file is now 12265 moved from CA.pl to the 'ca' utility with a new option -create_serial. 12266 12267 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 12268 number file to 1, which is bound to cause problems. To avoid 12269 the problems while respecting compatibility between different 0.9.7 12270 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 12271 CA.pl for serial number initialization. With the new release 0.9.8, 12272 we can fix the problem directly in the 'ca' utility.) 12273 12274 *Steve Henson* 12275 12276 * Reduced header interdependencies by declaring more opaque objects in 12277 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 12278 give fewer recursive includes, which could break lazy source code - so 12279 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 12280 developers should define this symbol when building and using openssl to 12281 ensure they track the recommended behaviour, interfaces, [etc], but 12282 backwards-compatible behaviour prevails when this isn't defined. 12283 12284 *Geoff Thorpe* 12285 12286 * New function X509_POLICY_NODE_print() which prints out policy nodes. 12287 12288 *Steve Henson* 12289 12290 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 12291 This will generate a random key of the appropriate length based on the 12292 cipher context. The EVP_CIPHER can provide its own random key generation 12293 routine to support keys of a specific form. This is used in the des and 12294 3des routines to generate a key of the correct parity. Update S/MIME 12295 code to use new functions and hence generate correct parity DES keys. 12296 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 12297 valid (weak or incorrect parity). 12298 12299 *Steve Henson* 12300 12301 * Add a local set of CRLs that can be used by X509_verify_cert() as well 12302 as looking them up. This is useful when the verified structure may contain 12303 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 12304 present unless the new PKCS7_NO_CRL flag is asserted. 12305 12306 *Steve Henson* 12307 12308 * Extend ASN1 oid configuration module. It now additionally accepts the 12309 syntax: 12310 12311 shortName = some long name, 1.2.3.4 12312 12313 *Steve Henson* 12314 12315 * Reimplemented the BN_CTX implementation. There is now no more static 12316 limitation on the number of variables it can handle nor the depth of the 12317 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 12318 information can now expand as required, and rather than having a single 12319 static array of bignums, BN_CTX now uses a linked-list of such arrays 12320 allowing it to expand on demand whilst maintaining the usefulness of 12321 BN_CTX's "bundling". 12322 12323 *Geoff Thorpe* 12324 12325 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 12326 to allow all RSA operations to function using a single BN_CTX. 12327 12328 *Geoff Thorpe* 12329 12330 * Preliminary support for certificate policy evaluation and checking. This 12331 is initially intended to pass the tests outlined in "Conformance Testing 12332 of Relying Party Client Certificate Path Processing Logic" v1.07. 12333 12334 *Steve Henson* 12335 12336 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 12337 remained unused and not that useful. A variety of other little bignum 12338 tweaks and fixes have also been made continuing on from the audit (see 12339 below). 12340 12341 *Geoff Thorpe* 12342 12343 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 12344 associated ASN1, EVP and SSL functions and old ASN1 macros. 12345 12346 *Richard Levitte* 12347 12348 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 12349 and this should never fail. So the return value from the use of 12350 BN_set_word() (which can fail due to needless expansion) is now deprecated; 12351 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 12352 12353 *Geoff Thorpe* 12354 12355 * BN_CTX_get() should return zero-valued bignums, providing the same 12356 initialised value as BN_new(). 12357 12358 *Geoff Thorpe, suggested by Ulf Möller* 12359 12360 * Support for inhibitAnyPolicy certificate extension. 12361 12362 *Steve Henson* 12363 12364 * An audit of the BIGNUM code is underway, for which debugging code is 12365 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 12366 is considered valid when processing BIGNUMs, and causes execution to 12367 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 12368 further steps are taken to deliberately pollute unused data in BIGNUM 12369 structures to try and expose faulty code further on. For now, openssl will 12370 (in its default mode of operation) continue to tolerate the inconsistent 12371 forms that it has tolerated in the past, but authors and packagers should 12372 consider trying openssl and their own applications when compiled with 12373 these debugging symbols defined. It will help highlight potential bugs in 12374 their own code, and will improve the test coverage for OpenSSL itself. At 12375 some point, these tighter rules will become openssl's default to improve 12376 maintainability, though the assert()s and other overheads will remain only 12377 in debugging configurations. See bn.h for more details. 12378 12379 *Geoff Thorpe, Nils Larsch, Ulf Möller* 12380 12381 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 12382 that can only be obtained through BN_CTX_new() (which implicitly 12383 initialises it). The presence of this function only made it possible 12384 to overwrite an existing structure (and cause memory leaks). 12385 12386 *Geoff Thorpe* 12387 12388 * Because of the callback-based approach for implementing LHASH as a 12389 template type, lh_insert() adds opaque objects to hash-tables and 12390 lh_doall() or lh_doall_arg() are typically used with a destructor callback 12391 to clean up those corresponding objects before destroying the hash table 12392 (and losing the object pointers). So some over-zealous constifications in 12393 LHASH have been relaxed so that lh_insert() does not take (nor store) the 12394 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 12395 prototyped to have "const" restrictions on the object pointers they are 12396 given (and so aren't required to cast them away any more). 12397 12398 *Geoff Thorpe* 12399 12400 * The tmdiff.h API was so ugly and minimal that our own timing utility 12401 (speed) prefers to use its own implementation. The two implementations 12402 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 12403 its object type properly exposed (MS_TM) instead of casting to/from 12404 `char *`. This may still change yet if someone realises MS_TM and 12405 `ms_time_***` 12406 aren't necessarily the greatest nomenclatures - but this is what was used 12407 internally to the implementation so I've used that for now. 12408 12409 *Geoff Thorpe* 12410 12411 * Ensure that deprecated functions do not get compiled when 12412 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 12413 the self-tests were still using deprecated key-generation functions so 12414 these have been updated also. 12415 12416 *Geoff Thorpe* 12417 12418 * Reorganise PKCS#7 code to separate the digest location functionality 12419 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 12420 New function PKCS7_set_digest() to set the digest type for PKCS#7 12421 digestedData type. Add additional code to correctly generate the 12422 digestedData type and add support for this type in PKCS7 initialization 12423 functions. 12424 12425 *Steve Henson* 12426 12427 * New function PKCS7_set0_type_other() this initializes a PKCS7 12428 structure of type "other". 12429 12430 *Steve Henson* 12431 12432 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 12433 sure the loop does correctly stop and breaking ("division by zero") 12434 modulus operations are not performed. The (pre-generated) prime 12435 table crypto/bn/bn_prime.h was already correct, but it could not be 12436 re-generated on some platforms because of the "division by zero" 12437 situation in the script. 12438 12439 *Ralf S. Engelschall* 12440 12441 * Update support for ECC-based TLS ciphersuites according to 12442 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 12443 SHA-1 now is only used for "small" curves (where the 12444 representation of a field element takes up to 24 bytes); for 12445 larger curves, the field element resulting from ECDH is directly 12446 used as premaster secret. 12447 12448 *Douglas Stebila (Sun Microsystems Laboratories)* 12449 12450 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 12451 curve secp160r1 to the tests. 12452 12453 *Douglas Stebila (Sun Microsystems Laboratories)* 12454 12455 * Add the possibility to load symbols globally with DSO. 12456 12457 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 12458 12459 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 12460 control of the error stack. 12461 12462 *Richard Levitte* 12463 12464 * Add support for STORE in ENGINE. 12465 12466 *Richard Levitte* 12467 12468 * Add the STORE type. The intention is to provide a common interface 12469 to certificate and key stores, be they simple file-based stores, or 12470 HSM-type store, or LDAP stores, or... 12471 NOTE: The code is currently UNTESTED and isn't really used anywhere. 12472 12473 *Richard Levitte* 12474 12475 * Add a generic structure called OPENSSL_ITEM. This can be used to 12476 pass a list of arguments to any function as well as provide a way 12477 for a function to pass data back to the caller. 12478 12479 *Richard Levitte* 12480 12481 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 12482 works like BUF_strdup() but can be used to duplicate a portion of 12483 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 12484 a memory area. 12485 12486 *Richard Levitte* 12487 12488 * Add the function sk_find_ex() which works like sk_find(), but will 12489 return an index to an element even if an exact match couldn't be 12490 found. The index is guaranteed to point at the element where the 12491 searched-for key would be inserted to preserve sorting order. 12492 12493 *Richard Levitte* 12494 12495 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 12496 takes an extra flags argument for optional functionality. Currently, 12497 the following flags are defined: 12498 12499 OBJ_BSEARCH_VALUE_ON_NOMATCH 12500 This one gets OBJ_bsearch_ex() to return a pointer to the first 12501 element where the comparing function returns a negative or zero 12502 number. 12503 12504 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 12505 This one gets OBJ_bsearch_ex() to return a pointer to the first 12506 element where the comparing function returns zero. This is useful 12507 if there are more than one element where the comparing function 12508 returns zero. 12509 12510 *Richard Levitte* 12511 12512 * Make it possible to create self-signed certificates with 'openssl ca' 12513 in such a way that the self-signed certificate becomes part of the 12514 CA database and uses the same mechanisms for serial number generation 12515 as all other certificate signing. The new flag '-selfsign' enables 12516 this functionality. Adapt CA.sh and CA.pl.in. 12517 12518 *Richard Levitte* 12519 12520 * Add functionality to check the public key of a certificate request 12521 against a given private. This is useful to check that a certificate 12522 request can be signed by that key (self-signing). 12523 12524 *Richard Levitte* 12525 12526 * Make it possible to have multiple active certificates with the same 12527 subject in the CA index file. This is done only if the keyword 12528 'unique_subject' is set to 'no' in the main CA section (default 12529 if 'CA_default') of the configuration file. The value is saved 12530 with the database itself in a separate index attribute file, 12531 named like the index file with '.attr' appended to the name. 12532 12533 *Richard Levitte* 12534 12535 * Generate multi-valued AVAs using '+' notation in config files for 12536 req and dirName. 12537 12538 *Steve Henson* 12539 12540 * Support for nameConstraints certificate extension. 12541 12542 *Steve Henson* 12543 12544 * Support for policyConstraints certificate extension. 12545 12546 *Steve Henson* 12547 12548 * Support for policyMappings certificate extension. 12549 12550 *Steve Henson* 12551 12552 * Make sure the default DSA_METHOD implementation only uses its 12553 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 12554 and change its own handlers to be NULL so as to remove unnecessary 12555 indirection. This lets alternative implementations fallback to the 12556 default implementation more easily. 12557 12558 *Geoff Thorpe* 12559 12560 * Support for directoryName in GeneralName related extensions 12561 in config files. 12562 12563 *Steve Henson* 12564 12565 * Make it possible to link applications using Makefile.shared. 12566 Make that possible even when linking against static libraries! 12567 12568 *Richard Levitte* 12569 12570 * Support for single pass processing for S/MIME signing. This now 12571 means that S/MIME signing can be done from a pipe, in addition 12572 cleartext signing (multipart/signed type) is effectively streaming 12573 and the signed data does not need to be all held in memory. 12574 12575 This is done with a new flag PKCS7_STREAM. When this flag is set 12576 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 12577 is done after the data is output (and digests calculated) in 12578 SMIME_write_PKCS7(). 12579 12580 *Steve Henson* 12581 12582 * Add full support for -rpath/-R, both in shared libraries and 12583 applications, at least on the platforms where it's known how 12584 to do it. 12585 12586 *Richard Levitte* 12587 12588 * In crypto/ec/ec_mult.c, implement fast point multiplication with 12589 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 12590 will now compute a table of multiples of the generator that 12591 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 12592 faster (notably in the case of a single point multiplication, 12593 scalar * generator). 12594 12595 *Nils Larsch, Bodo Moeller* 12596 12597 * IPv6 support for certificate extensions. The various extensions 12598 which use the IP:a.b.c.d can now take IPv6 addresses using the 12599 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 12600 correctly. 12601 12602 *Steve Henson* 12603 12604 * Added an ENGINE that implements RSA by performing private key 12605 exponentiations with the GMP library. The conversions to and from 12606 GMP's mpz_t format aren't optimised nor are any montgomery forms 12607 cached, and on x86 it appears OpenSSL's own performance has caught up. 12608 However there are likely to be other architectures where GMP could 12609 provide a boost. This ENGINE is not built in by default, but it can be 12610 specified at Configure time and should be accompanied by the necessary 12611 linker additions, eg; 12612 ./config -DOPENSSL_USE_GMP -lgmp 12613 12614 *Geoff Thorpe* 12615 12616 * "openssl engine" will not display ENGINE/DSO load failure errors when 12617 testing availability of engines with "-t" - the old behaviour is 12618 produced by increasing the feature's verbosity with "-tt". 12619 12620 *Geoff Thorpe* 12621 12622 * ECDSA routines: under certain error conditions uninitialized BN objects 12623 could be freed. Solution: make sure initialization is performed early 12624 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 12625 via PR#459) 12626 12627 *Lutz Jaenicke* 12628 12629 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 12630 and DH_METHOD (eg. by ENGINE implementations) to override the normal 12631 software implementations. For DSA and DH, parameter generation can 12632 also be overridden by providing the appropriate method callbacks. 12633 12634 *Geoff Thorpe* 12635 12636 * Change the "progress" mechanism used in key-generation and 12637 primality testing to functions that take a new BN_GENCB pointer in 12638 place of callback/argument pairs. The new API functions have `_ex` 12639 postfixes and the older functions are reimplemented as wrappers for 12640 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 12641 declarations of the old functions to help (graceful) attempts to 12642 migrate to the new functions. Also, the new key-generation API 12643 functions operate on a caller-supplied key-structure and return 12644 success/failure rather than returning a key or NULL - this is to 12645 help make "keygen" another member function of RSA_METHOD etc. 12646 12647 Example for using the new callback interface: 12648 12649 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 12650 void *my_arg = ...; 12651 BN_GENCB my_cb; 12652 12653 BN_GENCB_set(&my_cb, my_callback, my_arg); 12654 12655 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 12656 /* For the meaning of a, b in calls to my_callback(), see the 12657 * documentation of the function that calls the callback. 12658 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 12659 * my_callback should return 1 if it wants BN_is_prime_ex() 12660 * to continue, or 0 to stop. 12661 */ 12662 12663 *Geoff Thorpe* 12664 12665 * Change the ZLIB compression method to be stateful, and make it 12666 available to TLS with the number defined in 12667 draft-ietf-tls-compression-04.txt. 12668 12669 *Richard Levitte* 12670 12671 * Add the ASN.1 structures and functions for CertificatePair, which 12672 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 12673 12674 CertificatePair ::= SEQUENCE { 12675 forward [0] Certificate OPTIONAL, 12676 reverse [1] Certificate OPTIONAL, 12677 -- at least one of the pair shall be present -- } 12678 12679 Also implement the PEM functions to read and write certificate 12680 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 12681 12682 This needed to be defined, mostly for the sake of the LDAP 12683 attribute crossCertificatePair, but may prove useful elsewhere as 12684 well. 12685 12686 *Richard Levitte* 12687 12688 * Make it possible to inhibit symlinking of shared libraries in 12689 Makefile.shared, for Cygwin's sake. 12690 12691 *Richard Levitte* 12692 12693 * Extend the BIGNUM API by creating a function 12694 void BN_set_negative(BIGNUM *a, int neg); 12695 and a macro that behave like 12696 int BN_is_negative(const BIGNUM *a); 12697 12698 to avoid the need to access 'a->neg' directly in applications. 12699 12700 *Nils Larsch* 12701 12702 * Implement fast modular reduction for pseudo-Mersenne primes 12703 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 12704 EC_GROUP_new_curve_GFp() will now automatically use this 12705 if applicable. 12706 12707 *Nils Larsch <nla@trustcenter.de>* 12708 12709 * Add new lock type (CRYPTO_LOCK_BN). 12710 12711 *Bodo Moeller* 12712 12713 * Change the ENGINE framework to automatically load engines 12714 dynamically from specific directories unless they could be 12715 found to already be built in or loaded. Move all the 12716 current engines except for the cryptodev one to a new 12717 directory engines/. 12718 The engines in engines/ are built as shared libraries if 12719 the "shared" options was given to ./Configure or ./config. 12720 Otherwise, they are inserted in libcrypto.a. 12721 /usr/local/ssl/engines is the default directory for dynamic 12722 engines, but that can be overridden at configure time through 12723 the usual use of --prefix and/or --openssldir, and at run 12724 time with the environment variable OPENSSL_ENGINES. 12725 12726 *Geoff Thorpe and Richard Levitte* 12727 12728 * Add Makefile.shared, a helper makefile to build shared 12729 libraries. Adapt Makefile.org. 12730 12731 *Richard Levitte* 12732 12733 * Add version info to Win32 DLLs. 12734 12735 *Peter 'Luna' Runestig" <peter@runestig.com>* 12736 12737 * Add new 'medium level' PKCS#12 API. Certificates and keys 12738 can be added using this API to created arbitrary PKCS#12 12739 files while avoiding the low-level API. 12740 12741 New options to PKCS12_create(), key or cert can be NULL and 12742 will then be omitted from the output file. The encryption 12743 algorithm NIDs can be set to -1 for no encryption, the mac 12744 iteration count can be set to 0 to omit the mac. 12745 12746 Enhance pkcs12 utility by making the -nokeys and -nocerts 12747 options work when creating a PKCS#12 file. New option -nomac 12748 to omit the mac, NONE can be set for an encryption algorithm. 12749 New code is modified to use the enhanced PKCS12_create() 12750 instead of the low-level API. 12751 12752 *Steve Henson* 12753 12754 * Extend ASN1 encoder to support indefinite length constructed 12755 encoding. This can output sequences tags and octet strings in 12756 this form. Modify pk7_asn1.c to support indefinite length 12757 encoding. This is experimental and needs additional code to 12758 be useful, such as an ASN1 bio and some enhanced streaming 12759 PKCS#7 code. 12760 12761 Extend template encode functionality so that tagging is passed 12762 down to the template encoder. 12763 12764 *Steve Henson* 12765 12766 * Let 'openssl req' fail if an argument to '-newkey' is not 12767 recognized instead of using RSA as a default. 12768 12769 *Bodo Moeller* 12770 12771 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 12772 As these are not official, they are not included in "ALL"; 12773 the "ECCdraft" ciphersuite group alias can be used to select them. 12774 12775 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 12776 12777 * Add ECDH engine support. 12778 12779 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 12780 12781 * Add ECDH in new directory crypto/ecdh/. 12782 12783 *Douglas Stebila (Sun Microsystems Laboratories)* 12784 12785 * Let BN_rand_range() abort with an error after 100 iterations 12786 without success (which indicates a broken PRNG). 12787 12788 *Bodo Moeller* 12789 12790 * Change BN_mod_sqrt() so that it verifies that the input value 12791 is really the square of the return value. (Previously, 12792 BN_mod_sqrt would show GIGO behaviour.) 12793 12794 *Bodo Moeller* 12795 12796 * Add named elliptic curves over binary fields from X9.62, SECG, 12797 and WAP/WTLS; add OIDs that were still missing. 12798 12799 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 12800 12801 * Extend the EC library for elliptic curves over binary fields 12802 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 12803 New EC_METHOD: 12804 12805 EC_GF2m_simple_method 12806 12807 New API functions: 12808 12809 EC_GROUP_new_curve_GF2m 12810 EC_GROUP_set_curve_GF2m 12811 EC_GROUP_get_curve_GF2m 12812 EC_POINT_set_affine_coordinates_GF2m 12813 EC_POINT_get_affine_coordinates_GF2m 12814 EC_POINT_set_compressed_coordinates_GF2m 12815 12816 Point compression for binary fields is disabled by default for 12817 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 12818 enable it). 12819 12820 As binary polynomials are represented as BIGNUMs, various members 12821 of the EC_GROUP and EC_POINT data structures can be shared 12822 between the implementations for prime fields and binary fields; 12823 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 12824 are essentially identical to their `..._GFp` counterparts. 12825 (For simplicity, the `..._GFp` prefix has been dropped from 12826 various internal method names.) 12827 12828 An internal 'field_div' method (similar to 'field_mul' and 12829 'field_sqr') has been added; this is used only for binary fields. 12830 12831 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 12832 12833 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 12834 through methods ('mul', 'precompute_mult'). 12835 12836 The generic implementations (now internally called 'ec_wNAF_mul' 12837 and 'ec_wNAF_precomputed_mult') remain the default if these 12838 methods are undefined. 12839 12840 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 12841 12842 * New function EC_GROUP_get_degree, which is defined through 12843 EC_METHOD. For curves over prime fields, this returns the bit 12844 length of the modulus. 12845 12846 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 12847 12848 * New functions EC_GROUP_dup, EC_POINT_dup. 12849 (These simply call ..._new and ..._copy). 12850 12851 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 12852 12853 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 12854 Polynomials are represented as BIGNUMs (where the sign bit is not 12855 used) in the following functions [macros]: 12856 12857 BN_GF2m_add 12858 BN_GF2m_sub [= BN_GF2m_add] 12859 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 12860 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 12861 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 12862 BN_GF2m_mod_inv 12863 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 12864 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 12865 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 12866 BN_GF2m_cmp [= BN_ucmp] 12867 12868 (Note that only the 'mod' functions are actually for fields GF(2^m). 12869 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 12870 12871 For some functions, an the irreducible polynomial defining a 12872 field can be given as an 'unsigned int[]' with strictly 12873 decreasing elements giving the indices of those bits that are set; 12874 i.e., p[] represents the polynomial 12875 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 12876 where 12877 p[0] > p[1] > ... > p[k] = 0. 12878 This applies to the following functions: 12879 12880 BN_GF2m_mod_arr 12881 BN_GF2m_mod_mul_arr 12882 BN_GF2m_mod_sqr_arr 12883 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 12884 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 12885 BN_GF2m_mod_exp_arr 12886 BN_GF2m_mod_sqrt_arr 12887 BN_GF2m_mod_solve_quad_arr 12888 BN_GF2m_poly2arr 12889 BN_GF2m_arr2poly 12890 12891 Conversion can be performed by the following functions: 12892 12893 BN_GF2m_poly2arr 12894 BN_GF2m_arr2poly 12895 12896 bntest.c has additional tests for binary polynomial arithmetic. 12897 12898 Two implementations for BN_GF2m_mod_div() are available. 12899 The default algorithm simply uses BN_GF2m_mod_inv() and 12900 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 12901 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 12902 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 12903 12904 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 12905 12906 * Add new error code 'ERR_R_DISABLED' that can be used when some 12907 functionality is disabled at compile-time. 12908 12909 *Douglas Stebila <douglas.stebila@sun.com>* 12910 12911 * Change default behaviour of 'openssl asn1parse' so that more 12912 information is visible when viewing, e.g., a certificate: 12913 12914 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 12915 mode the content of non-printable OCTET STRINGs is output in a 12916 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 12917 avoid the appearance of a printable string. 12918 12919 *Nils Larsch <nla@trustcenter.de>* 12920 12921 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 12922 functions 12923 EC_GROUP_set_asn1_flag() 12924 EC_GROUP_get_asn1_flag() 12925 EC_GROUP_set_point_conversion_form() 12926 EC_GROUP_get_point_conversion_form() 12927 These control ASN1 encoding details: 12928 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 12929 has been set to OPENSSL_EC_NAMED_CURVE. 12930 - Points are encoded in uncompressed form by default; options for 12931 asn1_for are as for point2oct, namely 12932 POINT_CONVERSION_COMPRESSED 12933 POINT_CONVERSION_UNCOMPRESSED 12934 POINT_CONVERSION_HYBRID 12935 12936 Also add 'seed' and 'seed_len' members to EC_GROUP with access 12937 functions 12938 EC_GROUP_set_seed() 12939 EC_GROUP_get0_seed() 12940 EC_GROUP_get_seed_len() 12941 This is used only for ASN1 purposes (so far). 12942 12943 *Nils Larsch <nla@trustcenter.de>* 12944 12945 * Add 'field_type' member to EC_METHOD, which holds the NID 12946 of the appropriate field type OID. The new function 12947 EC_METHOD_get_field_type() returns this value. 12948 12949 *Nils Larsch <nla@trustcenter.de>* 12950 12951 * Add functions 12952 EC_POINT_point2bn() 12953 EC_POINT_bn2point() 12954 EC_POINT_point2hex() 12955 EC_POINT_hex2point() 12956 providing useful interfaces to EC_POINT_point2oct() and 12957 EC_POINT_oct2point(). 12958 12959 *Nils Larsch <nla@trustcenter.de>* 12960 12961 * Change internals of the EC library so that the functions 12962 EC_GROUP_set_generator() 12963 EC_GROUP_get_generator() 12964 EC_GROUP_get_order() 12965 EC_GROUP_get_cofactor() 12966 are implemented directly in crypto/ec/ec_lib.c and not dispatched 12967 to methods, which would lead to unnecessary code duplication when 12968 adding different types of curves. 12969 12970 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 12971 12972 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 12973 arithmetic, and such that modified wNAFs are generated 12974 (which avoid length expansion in many cases). 12975 12976 *Bodo Moeller* 12977 12978 * Add a function EC_GROUP_check_discriminant() (defined via 12979 EC_METHOD) that verifies that the curve discriminant is non-zero. 12980 12981 Add a function EC_GROUP_check() that makes some sanity tests 12982 on a EC_GROUP, its generator and order. This includes 12983 EC_GROUP_check_discriminant(). 12984 12985 *Nils Larsch <nla@trustcenter.de>* 12986 12987 * Add ECDSA in new directory crypto/ecdsa/. 12988 12989 Add applications 'openssl ecparam' and 'openssl ecdsa' 12990 (these are based on 'openssl dsaparam' and 'openssl dsa'). 12991 12992 ECDSA support is also included in various other files across the 12993 library. Most notably, 12994 - 'openssl req' now has a '-newkey ecdsa:file' option; 12995 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 12996 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 12997 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 12998 them suitable for ECDSA where domain parameters must be 12999 extracted before the specific public key; 13000 - ECDSA engine support has been added. 13001 13002 *Nils Larsch <nla@trustcenter.de>* 13003 13004 * Include some named elliptic curves, and add OIDs from X9.62, 13005 SECG, and WAP/WTLS. Each curve can be obtained from the new 13006 function 13007 EC_GROUP_new_by_curve_name(), 13008 and the list of available named curves can be obtained with 13009 EC_get_builtin_curves(). 13010 Also add a 'curve_name' member to EC_GROUP objects, which can be 13011 accessed via 13012 EC_GROUP_set_curve_name() 13013 EC_GROUP_get_curve_name() 13014 13015 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 13016 13017 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 13018 was actually never needed) and in BN_mul(). The removal in BN_mul() 13019 required a small change in bn_mul_part_recursive() and the addition 13020 of the functions bn_cmp_part_words(), bn_sub_part_words() and 13021 bn_add_part_words(), which do the same thing as bn_cmp_words(), 13022 bn_sub_words() and bn_add_words() except they take arrays with 13023 differing sizes. 13024 13025 *Richard Levitte* 13026 13027### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 13028 13029 * Cleanse PEM buffers before freeing them since they may contain 13030 sensitive data. 13031 13032 *Benjamin Bennett <ben@psc.edu>* 13033 13034 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 13035 a ciphersuite string such as "DEFAULT:RSA" cannot enable 13036 authentication-only ciphersuites. 13037 13038 *Bodo Moeller* 13039 13040 * Since AES128 and AES256 share a single mask bit in the logic of 13041 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 13042 kludge to work properly if AES128 is available and AES256 isn't. 13043 13044 *Victor Duchovni* 13045 13046 * Expand security boundary to match 1.1.1 module. 13047 13048 *Steve Henson* 13049 13050 * Remove redundant features: hash file source, editing of test vectors 13051 modify fipsld to use external fips_premain.c signature. 13052 13053 *Steve Henson* 13054 13055 * New perl script mkfipsscr.pl to create shell scripts or batch files to 13056 run algorithm test programs. 13057 13058 *Steve Henson* 13059 13060 * Make algorithm test programs more tolerant of whitespace. 13061 13062 *Steve Henson* 13063 13064 * Have SSL/TLS server implementation tolerate "mismatched" record 13065 protocol version while receiving ClientHello even if the 13066 ClientHello is fragmented. (The server can't insist on the 13067 particular protocol version it has chosen before the ServerHello 13068 message has informed the client about his choice.) 13069 13070 *Bodo Moeller* 13071 13072 * Load error codes if they are not already present instead of using a 13073 static variable. This allows them to be cleanly unloaded and reloaded. 13074 13075 *Steve Henson* 13076 13077### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 13078 13079 * Introduce limits to prevent malicious keys being able to 13080 cause a denial of service. ([CVE-2006-2940]) 13081 13082 *Steve Henson, Bodo Moeller* 13083 13084 * Fix ASN.1 parsing of certain invalid structures that can result 13085 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 13086 13087 * Fix buffer overflow in SSL_get_shared_ciphers() function. 13088 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 13089 13090 * Fix SSL client code which could crash if connecting to a 13091 malicious SSLv2 server. ([CVE-2006-4343]) 13092 13093 *Tavis Ormandy and Will Drewry, Google Security Team* 13094 13095 * Change ciphersuite string processing so that an explicit 13096 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 13097 will no longer include "AES128-SHA"), and any other similar 13098 ciphersuite (same bitmap) from *other* protocol versions (so that 13099 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 13100 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 13101 changes from 0.9.8b and 0.9.8d. 13102 13103 *Bodo Moeller* 13104 13105### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 13106 13107 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 13108 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 13109 13110 * Change the Unix randomness entropy gathering to use poll() when 13111 possible instead of select(), since the latter has some 13112 undesirable limitations. 13113 13114 *Darryl Miles via Richard Levitte and Bodo Moeller* 13115 13116 * Disable rogue ciphersuites: 13117 13118 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 13119 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 13120 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 13121 13122 The latter two were purportedly from 13123 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 13124 appear there. 13125 13126 Also deactivate the remaining ciphersuites from 13127 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 13128 unofficial, and the ID has long expired. 13129 13130 *Bodo Moeller* 13131 13132 * Fix RSA blinding Heisenbug (problems sometimes occurred on 13133 dual-core machines) and other potential thread-safety issues. 13134 13135 *Bodo Moeller* 13136 13137### Changes between 0.9.7i and 0.9.7j [04 May 2006] 13138 13139 * Adapt fipsld and the build system to link against the validated FIPS 13140 module in FIPS mode. 13141 13142 *Steve Henson* 13143 13144 * Fixes for VC++ 2005 build under Windows. 13145 13146 *Steve Henson* 13147 13148 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 13149 from a Windows bash shell such as MSYS. It is autodetected from the 13150 "config" script when run from a VC++ environment. Modify standard VC++ 13151 build to use fipscanister.o from the GNU make build. 13152 13153 *Steve Henson* 13154 13155### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 13156 13157 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 13158 The value now differs depending on if you build for FIPS or not. 13159 BEWARE! A program linked with a shared FIPSed libcrypto can't be 13160 safely run with a non-FIPSed libcrypto, as it may crash because of 13161 the difference induced by this change. 13162 13163 *Andy Polyakov* 13164 13165### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 13166 13167 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 13168 (part of SSL_OP_ALL). This option used to disable the 13169 countermeasure against man-in-the-middle protocol-version 13170 rollback in the SSL 2.0 server implementation, which is a bad 13171 idea. ([CVE-2005-2969]) 13172 13173 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 13174 for Information Security, National Institute of Advanced Industrial 13175 Science and Technology [AIST, Japan)]* 13176 13177 * Minimal support for X9.31 signatures and PSS padding modes. This is 13178 mainly for FIPS compliance and not fully integrated at this stage. 13179 13180 *Steve Henson* 13181 13182 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 13183 the exponentiation using a fixed-length exponent. (Otherwise, 13184 the information leaked through timing could expose the secret key 13185 after many signatures; cf. Bleichenbacher's attack on DSA with 13186 biased k.) 13187 13188 *Bodo Moeller* 13189 13190 * Make a new fixed-window mod_exp implementation the default for 13191 RSA, DSA, and DH private-key operations so that the sequence of 13192 squares and multiplies and the memory access pattern are 13193 independent of the particular secret key. This will mitigate 13194 cache-timing and potential related attacks. 13195 13196 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 13197 and this is automatically used by BN_mod_exp_mont() if the new flag 13198 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 13199 will use this BN flag for private exponents unless the flag 13200 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 13201 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 13202 13203 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 13204 13205 * Change the client implementation for SSLv23_method() and 13206 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 13207 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 13208 (Previously, the SSL 2.0 backwards compatible Client Hello 13209 message format would be used even with SSL_OP_NO_SSLv2.) 13210 13211 *Bodo Moeller* 13212 13213 * Add support for smime-type MIME parameter in S/MIME messages which some 13214 clients need. 13215 13216 *Steve Henson* 13217 13218 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 13219 a threadsafe manner. Modify rsa code to use new function and add calls 13220 to dsa and dh code (which had race conditions before). 13221 13222 *Steve Henson* 13223 13224 * Include the fixed error library code in the C error file definitions 13225 instead of fixing them up at runtime. This keeps the error code 13226 structures constant. 13227 13228 *Steve Henson* 13229 13230### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 13231 13232[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 13233OpenSSL 0.9.8.] 13234 13235 * Fixes for newer kerberos headers. NB: the casts are needed because 13236 the 'length' field is signed on one version and unsigned on another 13237 with no (?) obvious way to tell the difference, without these VC++ 13238 complains. Also the "definition" of FAR (blank) is no longer included 13239 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 13240 some needed definitions. 13241 13242 *Steve Henson* 13243 13244 * Undo Cygwin change. 13245 13246 *Ulf Möller* 13247 13248 * Added support for proxy certificates according to RFC 3820. 13249 Because they may be a security thread to unaware applications, 13250 they must be explicitly allowed in run-time. See 13251 docs/HOWTO/proxy_certificates.txt for further information. 13252 13253 *Richard Levitte* 13254 13255### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 13256 13257 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 13258 server and client random values. Previously 13259 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 13260 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 13261 13262 This change has negligible security impact because: 13263 13264 1. Server and client random values still have 24 bytes of pseudo random 13265 data. 13266 13267 2. Server and client random values are sent in the clear in the initial 13268 handshake. 13269 13270 3. The master secret is derived using the premaster secret (48 bytes in 13271 size for static RSA ciphersuites) as well as client server and random 13272 values. 13273 13274 The OpenSSL team would like to thank the UK NISCC for bringing this issue 13275 to our attention. 13276 13277 *Stephen Henson, reported by UK NISCC* 13278 13279 * Use Windows randomness collection on Cygwin. 13280 13281 *Ulf Möller* 13282 13283 * Fix hang in EGD/PRNGD query when communication socket is closed 13284 prematurely by EGD/PRNGD. 13285 13286 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 13287 13288 * Prompt for pass phrases when appropriate for PKCS12 input format. 13289 13290 *Steve Henson* 13291 13292 * Back-port of selected performance improvements from development 13293 branch, as well as improved support for PowerPC platforms. 13294 13295 *Andy Polyakov* 13296 13297 * Add lots of checks for memory allocation failure, error codes to indicate 13298 failure and freeing up memory if a failure occurs. 13299 13300 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 13301 13302 * Add new -passin argument to dgst. 13303 13304 *Steve Henson* 13305 13306 * Perform some character comparisons of different types in X509_NAME_cmp: 13307 this is needed for some certificates that re-encode DNs into UTF8Strings 13308 (in violation of RFC3280) and can't or won't issue name rollover 13309 certificates. 13310 13311 *Steve Henson* 13312 13313 * Make an explicit check during certificate validation to see that 13314 the CA setting in each certificate on the chain is correct. As a 13315 side effect always do the following basic checks on extensions, 13316 not just when there's an associated purpose to the check: 13317 13318 - if there is an unhandled critical extension (unless the user 13319 has chosen to ignore this fault) 13320 - if the path length has been exceeded (if one is set at all) 13321 - that certain extensions fit the associated purpose (if one has 13322 been given) 13323 13324 *Richard Levitte* 13325 13326### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 13327 13328 * Avoid a race condition when CRLs are checked in a multi threaded 13329 environment. This would happen due to the reordering of the revoked 13330 entries during signature checking and serial number lookup. Now the 13331 encoding is cached and the serial number sort performed under a lock. 13332 Add new STACK function sk_is_sorted(). 13333 13334 *Steve Henson* 13335 13336 * Add Delta CRL to the extension code. 13337 13338 *Steve Henson* 13339 13340 * Various fixes to s3_pkt.c so alerts are sent properly. 13341 13342 *David Holmes <d.holmes@f5.com>* 13343 13344 * Reduce the chances of duplicate issuer name and serial numbers (in 13345 violation of RFC3280) using the OpenSSL certificate creation utilities. 13346 This is done by creating a random 64 bit value for the initial serial 13347 number when a serial number file is created or when a self signed 13348 certificate is created using 'openssl req -x509'. The initial serial 13349 number file is created using 'openssl x509 -next_serial' in CA.pl 13350 rather than being initialized to 1. 13351 13352 *Steve Henson* 13353 13354### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 13355 13356 * Fix null-pointer assignment in do_change_cipher_spec() revealed 13357 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 13358 13359 *Joe Orton, Steve Henson* 13360 13361 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 13362 ([CVE-2004-0112]) 13363 13364 *Joe Orton, Steve Henson* 13365 13366 * Make it possible to have multiple active certificates with the same 13367 subject in the CA index file. This is done only if the keyword 13368 'unique_subject' is set to 'no' in the main CA section (default 13369 if 'CA_default') of the configuration file. The value is saved 13370 with the database itself in a separate index attribute file, 13371 named like the index file with '.attr' appended to the name. 13372 13373 *Richard Levitte* 13374 13375 * X509 verify fixes. Disable broken certificate workarounds when 13376 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 13377 keyUsage extension present. Don't accept CRLs with unhandled critical 13378 extensions: since verify currently doesn't process CRL extensions this 13379 rejects a CRL with *any* critical extensions. Add new verify error codes 13380 for these cases. 13381 13382 *Steve Henson* 13383 13384 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 13385 A clarification of RFC2560 will require the use of OCTET STRINGs and 13386 some implementations cannot handle the current raw format. Since OpenSSL 13387 copies and compares OCSP nonces as opaque blobs without any attempt at 13388 parsing them this should not create any compatibility issues. 13389 13390 *Steve Henson* 13391 13392 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 13393 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 13394 this HMAC (and other) operations are several times slower than OpenSSL 13395 < 0.9.7. 13396 13397 *Steve Henson* 13398 13399 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 13400 13401 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 13402 13403 * Use the correct content when signing type "other". 13404 13405 *Steve Henson* 13406 13407### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 13408 13409 * Fix various bugs revealed by running the NISCC test suite: 13410 13411 Stop out of bounds reads in the ASN1 code when presented with 13412 invalid tags (CVE-2003-0543 and CVE-2003-0544). 13413 13414 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 13415 13416 If verify callback ignores invalid public key errors don't try to check 13417 certificate signature with the NULL public key. 13418 13419 *Steve Henson* 13420 13421 * New -ignore_err option in ocsp application to stop the server 13422 exiting on the first error in a request. 13423 13424 *Steve Henson* 13425 13426 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 13427 if the server requested one: as stated in TLS 1.0 and SSL 3.0 13428 specifications. 13429 13430 *Steve Henson* 13431 13432 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 13433 extra data after the compression methods not only for TLS 1.0 13434 but also for SSL 3.0 (as required by the specification). 13435 13436 *Bodo Moeller; problem pointed out by Matthias Loepfe* 13437 13438 * Change X509_certificate_type() to mark the key as exported/exportable 13439 when it's 512 *bits* long, not 512 bytes. 13440 13441 *Richard Levitte* 13442 13443 * Change AES_cbc_encrypt() so it outputs exact multiple of 13444 blocks during encryption. 13445 13446 *Richard Levitte* 13447 13448 * Various fixes to base64 BIO and non blocking I/O. On write 13449 flushes were not handled properly if the BIO retried. On read 13450 data was not being buffered properly and had various logic bugs. 13451 This also affects blocking I/O when the data being decoded is a 13452 certain size. 13453 13454 *Steve Henson* 13455 13456 * Various S/MIME bugfixes and compatibility changes: 13457 output correct application/pkcs7 MIME type if 13458 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 13459 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 13460 of files as .eml work). Correctly handle very long lines in MIME 13461 parser. 13462 13463 *Steve Henson* 13464 13465### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 13466 13467 * Countermeasure against the Klima-Pokorny-Rosa extension of 13468 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 13469 a protocol version number mismatch like a decryption error 13470 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 13471 13472 *Bodo Moeller* 13473 13474 * Turn on RSA blinding by default in the default implementation 13475 to avoid a timing attack. Applications that don't want it can call 13476 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 13477 They would be ill-advised to do so in most cases. 13478 13479 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 13480 13481 * Change RSA blinding code so that it works when the PRNG is not 13482 seeded (in this case, the secret RSA exponent is abused as 13483 an unpredictable seed -- if it is not unpredictable, there 13484 is no point in blinding anyway). Make RSA blinding thread-safe 13485 by remembering the creator's thread ID in rsa->blinding and 13486 having all other threads use local one-time blinding factors 13487 (this requires more computation than sharing rsa->blinding, but 13488 avoids excessive locking; and if an RSA object is not shared 13489 between threads, blinding will still be very fast). 13490 13491 *Bodo Moeller* 13492 13493 * Fixed a typo bug that would cause ENGINE_set_default() to set an 13494 ENGINE as defaults for all supported algorithms irrespective of 13495 the 'flags' parameter. 'flags' is now honoured, so applications 13496 should make sure they are passing it correctly. 13497 13498 *Geoff Thorpe* 13499 13500 * Target "mingw" now allows native Windows code to be generated in 13501 the Cygwin environment as well as with the MinGW compiler. 13502 13503 *Ulf Moeller* 13504 13505### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 13506 13507 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 13508 via timing by performing a MAC computation even if incorrect 13509 block cipher padding has been found. This is a countermeasure 13510 against active attacks where the attacker has to distinguish 13511 between bad padding and a MAC verification error. ([CVE-2003-0078]) 13512 13513 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 13514 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 13515 Martin Vuagnoux (EPFL, Ilion)* 13516 13517 * Make the no-err option work as intended. The intention with no-err 13518 is not to have the whole error stack handling routines removed from 13519 libcrypto, it's only intended to remove all the function name and 13520 reason texts, thereby removing some of the footprint that may not 13521 be interesting if those errors aren't displayed anyway. 13522 13523 NOTE: it's still possible for any application or module to have its 13524 own set of error texts inserted. The routines are there, just not 13525 used by default when no-err is given. 13526 13527 *Richard Levitte* 13528 13529 * Add support for FreeBSD on IA64. 13530 13531 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 13532 13533 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 13534 Kerberos function mit_des_cbc_cksum(). Before this change, 13535 the value returned by DES_cbc_cksum() was like the one from 13536 mit_des_cbc_cksum(), except the bytes were swapped. 13537 13538 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 13539 13540 * Allow an application to disable the automatic SSL chain building. 13541 Before this a rather primitive chain build was always performed in 13542 ssl3_output_cert_chain(): an application had no way to send the 13543 correct chain if the automatic operation produced an incorrect result. 13544 13545 Now the chain builder is disabled if either: 13546 13547 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 13548 13549 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 13550 13551 The reasoning behind this is that an application would not want the 13552 auto chain building to take place if extra chain certificates are 13553 present and it might also want a means of sending no additional 13554 certificates (for example the chain has two certificates and the 13555 root is omitted). 13556 13557 *Steve Henson* 13558 13559 * Add the possibility to build without the ENGINE framework. 13560 13561 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 13562 13563 * Under Win32 gmtime() can return NULL: check return value in 13564 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 13565 13566 *Steve Henson* 13567 13568 * DSA routines: under certain error conditions uninitialized BN objects 13569 could be freed. Solution: make sure initialization is performed early 13570 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 13571 Nils Larsch <nla@trustcenter.de> via PR#459) 13572 13573 *Lutz Jaenicke* 13574 13575 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 13576 checked on reconnect on the client side, therefore session resumption 13577 could still fail with a "ssl session id is different" error. This 13578 behaviour is masked when SSL_OP_ALL is used due to 13579 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 13580 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 13581 followup to PR #377. 13582 13583 *Lutz Jaenicke* 13584 13585 * IA-32 assembler support enhancements: unified ELF targets, support 13586 for SCO/Caldera platforms, fix for Cygwin shared build. 13587 13588 *Andy Polyakov* 13589 13590 * Add support for FreeBSD on sparc64. As a consequence, support for 13591 FreeBSD on non-x86 processors is separate from x86 processors on 13592 the config script, much like the NetBSD support. 13593 13594 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 13595 13596### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 13597 13598[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 13599OpenSSL 0.9.7.] 13600 13601 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 13602 code (06) was taken as the first octet of the session ID and the last 13603 octet was ignored consequently. As a result SSLv2 client side session 13604 caching could not have worked due to the session ID mismatch between 13605 client and server. 13606 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 13607 PR #377. 13608 13609 *Lutz Jaenicke* 13610 13611 * Change the declaration of needed Kerberos libraries to use EX_LIBS 13612 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 13613 removed entirely. 13614 13615 *Richard Levitte* 13616 13617 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 13618 seems that in spite of existing for more than a year, many application 13619 author have done nothing to provide the necessary callbacks, which 13620 means that this particular engine will not work properly anywhere. 13621 This is a very unfortunate situation which forces us, in the name 13622 of usability, to give the hw_ncipher.c a static lock, which is part 13623 of libcrypto. 13624 NOTE: This is for the 0.9.7 series ONLY. This hack will never 13625 appear in 0.9.8 or later. We EXPECT application authors to have 13626 dealt properly with this when 0.9.8 is released (unless we actually 13627 make such changes in the libcrypto locking code that changes will 13628 have to be made anyway). 13629 13630 *Richard Levitte* 13631 13632 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 13633 octets have been read, EOF or an error occurs. Without this change 13634 some truncated ASN1 structures will not produce an error. 13635 13636 *Steve Henson* 13637 13638 * Disable Heimdal support, since it hasn't been fully implemented. 13639 Still give the possibility to force the use of Heimdal, but with 13640 warnings and a request that patches get sent to openssl-dev. 13641 13642 *Richard Levitte* 13643 13644 * Add the VC-CE target, introduce the WINCE sysname, and add 13645 INSTALL.WCE and appropriate conditionals to make it build. 13646 13647 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 13648 13649 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 13650 cygssl-x.y.z.dll, where x, y and z are the major, minor and 13651 edit numbers of the version. 13652 13653 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 13654 13655 * Introduce safe string copy and catenation functions 13656 (BUF_strlcpy() and BUF_strlcat()). 13657 13658 *Ben Laurie (CHATS) and Richard Levitte* 13659 13660 * Avoid using fixed-size buffers for one-line DNs. 13661 13662 *Ben Laurie (CHATS)* 13663 13664 * Add BUF_MEM_grow_clean() to avoid information leakage when 13665 resizing buffers containing secrets, and use where appropriate. 13666 13667 *Ben Laurie (CHATS)* 13668 13669 * Avoid using fixed size buffers for configuration file location. 13670 13671 *Ben Laurie (CHATS)* 13672 13673 * Avoid filename truncation for various CA files. 13674 13675 *Ben Laurie (CHATS)* 13676 13677 * Use sizeof in preference to magic numbers. 13678 13679 *Ben Laurie (CHATS)* 13680 13681 * Avoid filename truncation in cert requests. 13682 13683 *Ben Laurie (CHATS)* 13684 13685 * Add assertions to check for (supposedly impossible) buffer 13686 overflows. 13687 13688 *Ben Laurie (CHATS)* 13689 13690 * Don't cache truncated DNS entries in the local cache (this could 13691 potentially lead to a spoofing attack). 13692 13693 *Ben Laurie (CHATS)* 13694 13695 * Fix various buffers to be large enough for hex/decimal 13696 representations in a platform independent manner. 13697 13698 *Ben Laurie (CHATS)* 13699 13700 * Add CRYPTO_realloc_clean() to avoid information leakage when 13701 resizing buffers containing secrets, and use where appropriate. 13702 13703 *Ben Laurie (CHATS)* 13704 13705 * Add BIO_indent() to avoid much slightly worrying code to do 13706 indents. 13707 13708 *Ben Laurie (CHATS)* 13709 13710 * Convert sprintf()/BIO_puts() to BIO_printf(). 13711 13712 *Ben Laurie (CHATS)* 13713 13714 * buffer_gets() could terminate with the buffer only half 13715 full. Fixed. 13716 13717 *Ben Laurie (CHATS)* 13718 13719 * Add assertions to prevent user-supplied crypto functions from 13720 overflowing internal buffers by having large block sizes, etc. 13721 13722 *Ben Laurie (CHATS)* 13723 13724 * New OPENSSL_assert() macro (similar to assert(), but enabled 13725 unconditionally). 13726 13727 *Ben Laurie (CHATS)* 13728 13729 * Eliminate unused copy of key in RC4. 13730 13731 *Ben Laurie (CHATS)* 13732 13733 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 13734 13735 *Ben Laurie (CHATS)* 13736 13737 * Fix off-by-one error in EGD path. 13738 13739 *Ben Laurie (CHATS)* 13740 13741 * If RANDFILE path is too long, ignore instead of truncating. 13742 13743 *Ben Laurie (CHATS)* 13744 13745 * Eliminate unused and incorrectly sized X.509 structure 13746 CBCParameter. 13747 13748 *Ben Laurie (CHATS)* 13749 13750 * Eliminate unused and dangerous function knumber(). 13751 13752 *Ben Laurie (CHATS)* 13753 13754 * Eliminate unused and dangerous structure, KSSL_ERR. 13755 13756 *Ben Laurie (CHATS)* 13757 13758 * Protect against overlong session ID context length in an encoded 13759 session object. Since these are local, this does not appear to be 13760 exploitable. 13761 13762 *Ben Laurie (CHATS)* 13763 13764 * Change from security patch (see 0.9.6e below) that did not affect 13765 the 0.9.6 release series: 13766 13767 Remote buffer overflow in SSL3 protocol - an attacker could 13768 supply an oversized master key in Kerberos-enabled versions. 13769 ([CVE-2002-0657]) 13770 13771 *Ben Laurie (CHATS)* 13772 13773 * Change the SSL kerb5 codes to match RFC 2712. 13774 13775 *Richard Levitte* 13776 13777 * Make -nameopt work fully for req and add -reqopt switch. 13778 13779 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 13780 13781 * The "block size" for block ciphers in CFB and OFB mode should be 1. 13782 13783 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 13784 13785 * Make sure tests can be performed even if the corresponding algorithms 13786 have been removed entirely. This was also the last step to make 13787 OpenSSL compilable with DJGPP under all reasonable conditions. 13788 13789 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 13790 13791 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 13792 to allow version independent disabling of normally unselected ciphers, 13793 which may be activated as a side-effect of selecting a single cipher. 13794 13795 (E.g., cipher list string "RSA" enables ciphersuites that are left 13796 out of "ALL" because they do not provide symmetric encryption. 13797 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 13798 13799 *Lutz Jaenicke, Bodo Moeller* 13800 13801 * Add appropriate support for separate platform-dependent build 13802 directories. The recommended way to make a platform-dependent 13803 build directory is the following (tested on Linux), maybe with 13804 some local tweaks: 13805 13806 # Place yourself outside of the OpenSSL source tree. In 13807 # this example, the environment variable OPENSSL_SOURCE 13808 # is assumed to contain the absolute OpenSSL source directory. 13809 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 13810 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 13811 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 13812 mkdir -p `dirname $F` 13813 ln -s $OPENSSL_SOURCE/$F $F 13814 done 13815 13816 To be absolutely sure not to disturb the source tree, a "make clean" 13817 is a good thing. If it isn't successful, don't worry about it, 13818 it probably means the source directory is very clean. 13819 13820 *Richard Levitte* 13821 13822 * Make sure any ENGINE control commands make local copies of string 13823 pointers passed to them whenever necessary. Otherwise it is possible 13824 the caller may have overwritten (or deallocated) the original string 13825 data when a later ENGINE operation tries to use the stored values. 13826 13827 *Götz Babin-Ebell <babinebell@trustcenter.de>* 13828 13829 * Improve diagnostics in file reading and command-line digests. 13830 13831 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 13832 13833 * Add AES modes CFB and OFB to the object database. Correct an 13834 error in AES-CFB decryption. 13835 13836 *Richard Levitte* 13837 13838 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 13839 allows existing EVP_CIPHER_CTX structures to be reused after 13840 calling `EVP_*Final()`. This behaviour is used by encryption 13841 BIOs and some applications. This has the side effect that 13842 applications must explicitly clean up cipher contexts with 13843 EVP_CIPHER_CTX_cleanup() or they will leak memory. 13844 13845 *Steve Henson* 13846 13847 * Check the values of dna and dnb in bn_mul_recursive before calling 13848 bn_mul_comba (a non zero value means the a or b arrays do not contain 13849 n2 elements) and fallback to bn_mul_normal if either is not zero. 13850 13851 *Steve Henson* 13852 13853 * Fix escaping of non-ASCII characters when using the -subj option 13854 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 13855 13856 *Lutz Jaenicke* 13857 13858 * Make object definitions compliant to LDAP (RFC2256): SN is the short 13859 form for "surname", serialNumber has no short form. 13860 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 13861 therefore remove "mail" short name for "internet 7". 13862 The OID for unique identifiers in X509 certificates is 13863 x500UniqueIdentifier, not uniqueIdentifier. 13864 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 13865 13866 *Lutz Jaenicke* 13867 13868 * Add an "init" command to the ENGINE config module and auto initialize 13869 ENGINEs. Without any "init" command the ENGINE will be initialized 13870 after all ctrl commands have been executed on it. If init=1 the 13871 ENGINE is initialized at that point (ctrls before that point are run 13872 on the uninitialized ENGINE and after on the initialized one). If 13873 init=0 then the ENGINE will not be initialized at all. 13874 13875 *Steve Henson* 13876 13877 * Fix the 'app_verify_callback' interface so that the user-defined 13878 argument is actually passed to the callback: In the 13879 SSL_CTX_set_cert_verify_callback() prototype, the callback 13880 declaration has been changed from 13881 int (*cb)() 13882 into 13883 int (*cb)(X509_STORE_CTX *,void *); 13884 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 13885 i=s->ctx->app_verify_callback(&ctx) 13886 has been changed into 13887 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 13888 13889 To update applications using SSL_CTX_set_cert_verify_callback(), 13890 a dummy argument can be added to their callback functions. 13891 13892 *D. K. Smetters <smetters@parc.xerox.com>* 13893 13894 * Added the '4758cca' ENGINE to support IBM 4758 cards. 13895 13896 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 13897 13898 * Add and OPENSSL_LOAD_CONF define which will cause 13899 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 13900 This allows older applications to transparently support certain 13901 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 13902 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 13903 load the config file and OPENSSL_add_all_algorithms_conf() which will 13904 always load it have also been added. 13905 13906 *Steve Henson* 13907 13908 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 13909 Adjust NIDs and EVP layer. 13910 13911 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 13912 13913 * Config modules support in openssl utility. 13914 13915 Most commands now load modules from the config file, 13916 though in a few (such as version) this isn't done 13917 because it couldn't be used for anything. 13918 13919 In the case of ca and req the config file used is 13920 the same as the utility itself: that is the -config 13921 command line option can be used to specify an 13922 alternative file. 13923 13924 *Steve Henson* 13925 13926 * Move default behaviour from OPENSSL_config(). If appname is NULL 13927 use "openssl_conf" if filename is NULL use default openssl config file. 13928 13929 *Steve Henson* 13930 13931 * Add an argument to OPENSSL_config() to allow the use of an alternative 13932 config section name. Add a new flag to tolerate a missing config file 13933 and move code to CONF_modules_load_file(). 13934 13935 *Steve Henson* 13936 13937 * Support for crypto accelerator cards from Accelerated Encryption 13938 Processing, www.aep.ie. (Use engine 'aep') 13939 The support was copied from 0.9.6c [engine] and adapted/corrected 13940 to work with the new engine framework. 13941 13942 *AEP Inc. and Richard Levitte* 13943 13944 * Support for SureWare crypto accelerator cards from Baltimore 13945 Technologies. (Use engine 'sureware') 13946 The support was copied from 0.9.6c [engine] and adapted 13947 to work with the new engine framework. 13948 13949 *Richard Levitte* 13950 13951 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 13952 make the newer ENGINE framework commands for the CHIL engine work. 13953 13954 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 13955 13956 * Make it possible to produce shared libraries on ReliantUNIX. 13957 13958 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 13959 13960 * Add the configuration target debug-linux-ppro. 13961 Make 'openssl rsa' use the general key loading routines 13962 implemented in `apps.c`, and make those routines able to 13963 handle the key format FORMAT_NETSCAPE and the variant 13964 FORMAT_IISSGC. 13965 13966 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 13967 13968 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 13969 13970 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 13971 13972 * Add -keyform to rsautl, and document -engine. 13973 13974 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 13975 13976 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 13977 BIO_R_NO_SUCH_FILE error code rather than the generic 13978 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 13979 13980 *Ben Laurie* 13981 13982 * Add new functions 13983 ERR_peek_last_error 13984 ERR_peek_last_error_line 13985 ERR_peek_last_error_line_data. 13986 These are similar to 13987 ERR_peek_error 13988 ERR_peek_error_line 13989 ERR_peek_error_line_data, 13990 but report on the latest error recorded rather than the first one 13991 still in the error queue. 13992 13993 *Ben Laurie, Bodo Moeller* 13994 13995 * default_algorithms option in ENGINE config module. This allows things 13996 like: 13997 default_algorithms = ALL 13998 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 13999 14000 *Steve Henson* 14001 14002 * Preliminary ENGINE config module. 14003 14004 *Steve Henson* 14005 14006 * New experimental application configuration code. 14007 14008 *Steve Henson* 14009 14010 * Change the AES code to follow the same name structure as all other 14011 symmetric ciphers, and behave the same way. Move everything to 14012 the directory crypto/aes, thereby obsoleting crypto/rijndael. 14013 14014 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 14015 14016 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 14017 14018 *Ben Laurie and Theo de Raadt* 14019 14020 * Add option to output public keys in req command. 14021 14022 *Massimiliano Pala madwolf@openca.org* 14023 14024 * Use wNAFs in EC_POINTs_mul() for improved efficiency 14025 (up to about 10% better than before for P-192 and P-224). 14026 14027 *Bodo Moeller* 14028 14029 * New functions/macros 14030 14031 SSL_CTX_set_msg_callback(ctx, cb) 14032 SSL_CTX_set_msg_callback_arg(ctx, arg) 14033 SSL_set_msg_callback(ssl, cb) 14034 SSL_set_msg_callback_arg(ssl, arg) 14035 14036 to request calling a callback function 14037 14038 void cb(int write_p, int version, int content_type, 14039 const void *buf, size_t len, SSL *ssl, void *arg) 14040 14041 whenever a protocol message has been completely received 14042 (write_p == 0) or sent (write_p == 1). Here 'version' is the 14043 protocol version according to which the SSL library interprets 14044 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 14045 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 14046 the content type as defined in the SSL 3.0/TLS 1.0 protocol 14047 specification (change_cipher_spec(20), alert(21), handshake(22)). 14048 'buf' and 'len' point to the actual message, 'ssl' to the 14049 SSL object, and 'arg' is the application-defined value set by 14050 SSL[_CTX]_set_msg_callback_arg(). 14051 14052 'openssl s_client' and 'openssl s_server' have new '-msg' options 14053 to enable a callback that displays all protocol messages. 14054 14055 *Bodo Moeller* 14056 14057 * Change the shared library support so shared libraries are built as 14058 soon as the corresponding static library is finished, and thereby get 14059 openssl and the test programs linked against the shared library. 14060 This still only happens when the keyword "shard" has been given to 14061 the configuration scripts. 14062 14063 NOTE: shared library support is still an experimental thing, and 14064 backward binary compatibility is still not guaranteed. 14065 14066 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 14067 14068 * Add support for Subject Information Access extension. 14069 14070 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 14071 14072 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 14073 additional bytes when new memory had to be allocated, not just 14074 when reusing an existing buffer. 14075 14076 *Bodo Moeller* 14077 14078 * New command line and configuration option 'utf8' for the req command. 14079 This allows field values to be specified as UTF8 strings. 14080 14081 *Steve Henson* 14082 14083 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 14084 runs for the former and machine-readable output for the latter. 14085 14086 *Ben Laurie* 14087 14088 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 14089 of the e-mail address in the DN (i.e., it will go into a certificate 14090 extension only). The new configuration file option 'email_in_dn = no' 14091 has the same effect. 14092 14093 *Massimiliano Pala madwolf@openca.org* 14094 14095 * Change all functions with names starting with `des_` to be starting 14096 with `DES_` instead. Add wrappers that are compatible with libdes, 14097 but are named `_ossl_old_des_*`. Finally, add macros that map the 14098 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 14099 compatibility is desired. If OpenSSL 0.9.6c compatibility is 14100 desired, the `des_*` symbols will be mapped to `DES_*`, with one 14101 exception. 14102 14103 Since we provide two compatibility mappings, the user needs to 14104 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 14105 compatibility is desired. The default (i.e., when that macro 14106 isn't defined) is OpenSSL 0.9.6c compatibility. 14107 14108 There are also macros that enable and disable the support of old 14109 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 14110 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 14111 are defined, the default will apply: to support the old des routines. 14112 14113 In either case, one must include openssl/des.h to get the correct 14114 definitions. Do not try to just include openssl/des_old.h, that 14115 won't work. 14116 14117 NOTE: This is a major break of an old API into a new one. Software 14118 authors are encouraged to switch to the `DES_` style functions. Some 14119 time in the future, des_old.h and the libdes compatibility functions 14120 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 14121 default), and then completely removed. 14122 14123 *Richard Levitte* 14124 14125 * Test for certificates which contain unsupported critical extensions. 14126 If such a certificate is found during a verify operation it is 14127 rejected by default: this behaviour can be overridden by either 14128 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 14129 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 14130 X509_supported_extension() has also been added which returns 1 if a 14131 particular extension is supported. 14132 14133 *Steve Henson* 14134 14135 * Modify the behaviour of EVP cipher functions in similar way to digests 14136 to retain compatibility with existing code. 14137 14138 *Steve Henson* 14139 14140 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 14141 compatibility with existing code. In particular the 'ctx' parameter does 14142 not have to be to be initialized before the call to EVP_DigestInit() and 14143 it is tidied up after a call to EVP_DigestFinal(). New function 14144 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 14145 EVP_MD_CTX_copy() changed to not require the destination to be 14146 initialized valid and new function EVP_MD_CTX_copy_ex() added which 14147 requires the destination to be valid. 14148 14149 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 14150 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 14151 14152 *Steve Henson* 14153 14154 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 14155 so that complete 'Handshake' protocol structures are kept in memory 14156 instead of overwriting 'msg_type' and 'length' with 'body' data. 14157 14158 *Bodo Moeller* 14159 14160 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 14161 14162 *Massimo Santin via Richard Levitte* 14163 14164 * Major restructuring to the underlying ENGINE code. This includes 14165 reduction of linker bloat, separation of pure "ENGINE" manipulation 14166 (initialisation, etc) from functionality dealing with implementations 14167 of specific crypto interfaces. This change also introduces integrated 14168 support for symmetric ciphers and digest implementations - so ENGINEs 14169 can now accelerate these by providing EVP_CIPHER and EVP_MD 14170 implementations of their own. This is detailed in 14171 [crypto/engine/README.md](crypto/engine/README.md) 14172 as it couldn't be adequately described here. However, there are a few 14173 API changes worth noting - some RSA, DSA, DH, and RAND functions that 14174 were changed in the original introduction of ENGINE code have now 14175 reverted back - the hooking from this code to ENGINE is now a good 14176 deal more passive and at run-time, operations deal directly with 14177 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 14178 dereferencing through an ENGINE pointer any more. Also, the ENGINE 14179 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 14180 they were not being used by the framework as there is no concept of a 14181 BIGNUM_METHOD and they could not be generalised to the new 14182 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 14183 ENGINE_cpy() has been removed as it cannot be consistently defined in 14184 the new code. 14185 14186 *Geoff Thorpe* 14187 14188 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 14189 14190 *Steve Henson* 14191 14192 * Change mkdef.pl to sort symbols that get the same entry number, 14193 and make sure the automatically generated functions `ERR_load_*` 14194 become part of libeay.num as well. 14195 14196 *Richard Levitte* 14197 14198 * New function SSL_renegotiate_pending(). This returns true once 14199 renegotiation has been requested (either SSL_renegotiate() call 14200 or HelloRequest/ClientHello received from the peer) and becomes 14201 false once a handshake has been completed. 14202 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 14203 sends a HelloRequest, but does not ensure that a handshake takes 14204 place. SSL_renegotiate_pending() is useful for checking if the 14205 client has followed the request.) 14206 14207 *Bodo Moeller* 14208 14209 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 14210 By default, clients may request session resumption even during 14211 renegotiation (if session ID contexts permit); with this option, 14212 session resumption is possible only in the first handshake. 14213 14214 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 14215 more bits available for options that should not be part of 14216 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 14217 14218 *Bodo Moeller* 14219 14220 * Add some demos for certificate and certificate request creation. 14221 14222 *Steve Henson* 14223 14224 * Make maximum certificate chain size accepted from the peer application 14225 settable (`SSL*_get/set_max_cert_list()`), as proposed by 14226 "Douglas E. Engert" <deengert@anl.gov>. 14227 14228 *Lutz Jaenicke* 14229 14230 * Add support for shared libraries for Unixware-7 14231 (Boyd Lynn Gerber <gerberb@zenez.com>). 14232 14233 *Lutz Jaenicke* 14234 14235 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 14236 be done prior to destruction. Use this to unload error strings from 14237 ENGINEs that load their own error strings. NB: This adds two new API 14238 functions to "get" and "set" this destroy handler in an ENGINE. 14239 14240 *Geoff Thorpe* 14241 14242 * Alter all existing ENGINE implementations (except "openssl" and 14243 "openbsd") to dynamically instantiate their own error strings. This 14244 makes them more flexible to be built both as statically-linked ENGINEs 14245 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 14246 Also, add stub code to each that makes building them as self-contained 14247 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 14248 14249 *Geoff Thorpe* 14250 14251 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 14252 implementations into applications that are completely implemented in 14253 self-contained shared-libraries. The "dynamic" ENGINE exposes control 14254 commands that can be used to configure what shared-library to load and 14255 to control aspects of the way it is handled. Also, made an update to 14256 the [README-Engine.md](README-Engine.md) file 14257 that brings its information up-to-date and 14258 provides some information and instructions on the "dynamic" ENGINE 14259 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 14260 14261 *Geoff Thorpe* 14262 14263 * Make it possible to unload ranges of ERR strings with a new 14264 "ERR_unload_strings" function. 14265 14266 *Geoff Thorpe* 14267 14268 * Add a copy() function to EVP_MD. 14269 14270 *Ben Laurie* 14271 14272 * Make EVP_MD routines take a context pointer instead of just the 14273 md_data void pointer. 14274 14275 *Ben Laurie* 14276 14277 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 14278 that the digest can only process a single chunk of data 14279 (typically because it is provided by a piece of 14280 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 14281 is only going to provide a single chunk of data, and hence the 14282 framework needn't accumulate the data for oneshot drivers. 14283 14284 *Ben Laurie* 14285 14286 * As with "ERR", make it possible to replace the underlying "ex_data" 14287 functions. This change also alters the storage and management of global 14288 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 14289 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 14290 index counters. The API functions that use this state have been changed 14291 to take a "class_index" rather than pointers to the class's local STACK 14292 and counter, and there is now an API function to dynamically create new 14293 classes. This centralisation allows us to (a) plug a lot of the 14294 thread-safety problems that existed, and (b) makes it possible to clean 14295 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 14296 such data would previously have always leaked in application code and 14297 workarounds were in place to make the memory debugging turn a blind eye 14298 to it. Application code that doesn't use this new function will still 14299 leak as before, but their memory debugging output will announce it now 14300 rather than letting it slide. 14301 14302 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 14303 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 14304 has a return value to indicate success or failure. 14305 14306 *Geoff Thorpe* 14307 14308 * Make it possible to replace the underlying "ERR" functions such that the 14309 global state (2 LHASH tables and 2 locks) is only used by the "default" 14310 implementation. This change also adds two functions to "get" and "set" 14311 the implementation prior to it being automatically set the first time 14312 any other ERR function takes place. Ie. an application can call "get", 14313 pass the return value to a module it has just loaded, and that module 14314 can call its own "set" function using that value. This means the 14315 module's "ERR" operations will use (and modify) the error state in the 14316 application and not in its own statically linked copy of OpenSSL code. 14317 14318 *Geoff Thorpe* 14319 14320 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 14321 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 14322 the operation, and provides a more encapsulated way for external code 14323 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 14324 to use these functions rather than manually incrementing the counts. 14325 14326 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 14327 14328 *Geoff Thorpe* 14329 14330 * Add EVP test program. 14331 14332 *Ben Laurie* 14333 14334 * Add symmetric cipher support to ENGINE. Expect the API to change! 14335 14336 *Ben Laurie* 14337 14338 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 14339 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 14340 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 14341 These allow a CRL to be built without having to access X509_CRL fields 14342 directly. Modify 'ca' application to use new functions. 14343 14344 *Steve Henson* 14345 14346 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 14347 bug workarounds. Rollback attack detection is a security feature. 14348 The problem will only arise on OpenSSL servers when TLSv1 is not 14349 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 14350 Software authors not wanting to support TLSv1 will have special reasons 14351 for their choice and can explicitly enable this option. 14352 14353 *Bodo Moeller, Lutz Jaenicke* 14354 14355 * Rationalise EVP so it can be extended: don't include a union of 14356 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 14357 (similar to those existing for EVP_CIPHER_CTX). 14358 Usage example: 14359 14360 EVP_MD_CTX md; 14361 14362 EVP_MD_CTX_init(&md); /* new function call */ 14363 EVP_DigestInit(&md, EVP_sha1()); 14364 EVP_DigestUpdate(&md, in, len); 14365 EVP_DigestFinal(&md, out, NULL); 14366 EVP_MD_CTX_cleanup(&md); /* new function call */ 14367 14368 *Ben Laurie* 14369 14370 * Make DES key schedule conform to the usual scheme, as well as 14371 correcting its structure. This means that calls to DES functions 14372 now have to pass a pointer to a des_key_schedule instead of a 14373 plain des_key_schedule (which was actually always a pointer 14374 anyway): E.g., 14375 14376 des_key_schedule ks; 14377 14378 des_set_key_checked(..., &ks); 14379 des_ncbc_encrypt(..., &ks, ...); 14380 14381 (Note that a later change renames 'des_...' into 'DES_...'.) 14382 14383 *Ben Laurie* 14384 14385 * Initial reduction of linker bloat: the use of some functions, such as 14386 PEM causes large amounts of unused functions to be linked in due to 14387 poor organisation. For example pem_all.c contains every PEM function 14388 which has a knock on effect of linking in large amounts of (unused) 14389 ASN1 code. Grouping together similar functions and splitting unrelated 14390 functions prevents this. 14391 14392 *Steve Henson* 14393 14394 * Cleanup of EVP macros. 14395 14396 *Ben Laurie* 14397 14398 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 14399 correct `_ecb suffix`. 14400 14401 *Ben Laurie* 14402 14403 * Add initial OCSP responder support to ocsp application. The 14404 revocation information is handled using the text based index 14405 use by the ca application. The responder can either handle 14406 requests generated internally, supplied in files (for example 14407 via a CGI script) or using an internal minimal server. 14408 14409 *Steve Henson* 14410 14411 * Add configuration choices to get zlib compression for TLS. 14412 14413 *Richard Levitte* 14414 14415 * Changes to Kerberos SSL for RFC 2712 compliance: 14416 1. Implemented real KerberosWrapper, instead of just using 14417 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 14418 2. Implemented optional authenticator field of KerberosWrapper. 14419 14420 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 14421 and authenticator structs; see crypto/krb5/. 14422 14423 Generalized Kerberos calls to support multiple Kerberos libraries. 14424 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 14425 via Richard Levitte* 14426 14427 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 14428 already does with RSA. testdsa.h now has 'priv_key/pub_key' 14429 values for each of the key sizes rather than having just 14430 parameters (and 'speed' generating keys each time). 14431 14432 *Geoff Thorpe* 14433 14434 * Speed up EVP routines. 14435 Before: 14436crypt 14437pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 14438s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 14439s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 14440s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 14441crypt 14442s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 14443s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 14444s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 14445 After: 14446crypt 14447s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 14448crypt 14449s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 14450 14451 *Ben Laurie* 14452 14453 * Added the OS2-EMX target. 14454 14455 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 14456 14457 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 14458 New functions to support `NCONF` routines in extension code. 14459 New function `CONF_set_nconf()` 14460 to allow functions which take an `NCONF` to also handle the old `LHASH` 14461 structure: this means that the old `CONF` compatible routines can be 14462 retained (in particular w.rt. extensions) without having to duplicate the 14463 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 14464 14465 *Steve Henson* 14466 14467 * Enhance the general user interface with mechanisms for inner control 14468 and with possibilities to have yes/no kind of prompts. 14469 14470 *Richard Levitte* 14471 14472 * Change all calls to low-level digest routines in the library and 14473 applications to use EVP. Add missing calls to HMAC_cleanup() and 14474 don't assume HMAC_CTX can be copied using memcpy(). 14475 14476 *Verdon Walker <VWalker@novell.com>, Steve Henson* 14477 14478 * Add the possibility to control engines through control names but with 14479 arbitrary arguments instead of just a string. 14480 Change the key loaders to take a UI_METHOD instead of a callback 14481 function pointer. NOTE: this breaks binary compatibility with earlier 14482 versions of OpenSSL [engine]. 14483 Adapt the nCipher code for these new conditions and add a card insertion 14484 callback. 14485 14486 *Richard Levitte* 14487 14488 * Enhance the general user interface with mechanisms to better support 14489 dialog box interfaces, application-defined prompts, the possibility 14490 to use defaults (for example default passwords from somewhere else) 14491 and interrupts/cancellations. 14492 14493 *Richard Levitte* 14494 14495 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 14496 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 14497 14498 *Steve Henson* 14499 14500 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 14501 tidy up some unnecessarily weird code in 'sk_new()'). 14502 14503 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 14504 14505 * Change the key loading routines for ENGINEs to use the same kind 14506 callback (pem_password_cb) as all other routines that need this 14507 kind of callback. 14508 14509 *Richard Levitte* 14510 14511 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 14512 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 14513 than this minimum value is recommended. 14514 14515 *Lutz Jaenicke* 14516 14517 * New random seeder for OpenVMS, using the system process statistics 14518 that are easily reachable. 14519 14520 *Richard Levitte* 14521 14522 * Windows apparently can't transparently handle global 14523 variables defined in DLLs. Initialisations such as: 14524 14525 const ASN1_ITEM *it = &ASN1_INTEGER_it; 14526 14527 won't compile. This is used by the any applications that need to 14528 declare their own ASN1 modules. This was fixed by adding the option 14529 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 14530 needed for static libraries under Win32. 14531 14532 *Steve Henson* 14533 14534 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 14535 setting of purpose and trust fields. New X509_STORE trust and 14536 purpose functions and tidy up setting in other SSL functions. 14537 14538 *Steve Henson* 14539 14540 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 14541 structure. These are inherited by X509_STORE_CTX when it is 14542 initialised. This allows various defaults to be set in the 14543 X509_STORE structure (such as flags for CRL checking and custom 14544 purpose or trust settings) for functions which only use X509_STORE_CTX 14545 internally such as S/MIME. 14546 14547 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 14548 trust settings if they are not set in X509_STORE. This allows X509_STORE 14549 purposes and trust (in S/MIME for example) to override any set by default. 14550 14551 Add command line options for CRL checking to smime, s_client and s_server 14552 applications. 14553 14554 *Steve Henson* 14555 14556 * Initial CRL based revocation checking. If the CRL checking flag(s) 14557 are set then the CRL is looked up in the X509_STORE structure and 14558 its validity and signature checked, then if the certificate is found 14559 in the CRL the verify fails with a revoked error. 14560 14561 Various new CRL related callbacks added to X509_STORE_CTX structure. 14562 14563 Command line options added to 'verify' application to support this. 14564 14565 This needs some additional work, such as being able to handle multiple 14566 CRLs with different times, extension based lookup (rather than just 14567 by subject name) and ultimately more complete V2 CRL extension 14568 handling. 14569 14570 *Steve Henson* 14571 14572 * Add a general user interface API (crypto/ui/). This is designed 14573 to replace things like des_read_password and friends (backward 14574 compatibility functions using this new API are provided). 14575 The purpose is to remove prompting functions from the DES code 14576 section as well as provide for prompting through dialog boxes in 14577 a window system and the like. 14578 14579 *Richard Levitte* 14580 14581 * Add "ex_data" support to ENGINE so implementations can add state at a 14582 per-structure level rather than having to store it globally. 14583 14584 *Geoff* 14585 14586 * Make it possible for ENGINE structures to be copied when retrieved by 14587 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 14588 This causes the "original" ENGINE structure to act like a template, 14589 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 14590 operational state can be localised to each ENGINE structure, despite the 14591 fact they all share the same "methods". New ENGINE structures returned in 14592 this case have no functional references and the return value is the single 14593 structural reference. This matches the single structural reference returned 14594 by ENGINE_by_id() normally, when it is incremented on the pre-existing 14595 ENGINE structure. 14596 14597 *Geoff* 14598 14599 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 14600 needs to match any other type at all we need to manually clear the 14601 tag cache. 14602 14603 *Steve Henson* 14604 14605 * Changes to the "openssl engine" utility to include; 14606 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 14607 about an ENGINE's available control commands. 14608 - executing control commands from command line arguments using the 14609 '-pre' and '-post' switches. '-post' is only used if '-t' is 14610 specified and the ENGINE is successfully initialised. The syntax for 14611 the individual commands are colon-separated, for example; 14612 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 14613 14614 *Geoff* 14615 14616 * New dynamic control command support for ENGINEs. ENGINEs can now 14617 declare their own commands (numbers), names (strings), descriptions, 14618 and input types for run-time discovery by calling applications. A 14619 subset of these commands are implicitly classed as "executable" 14620 depending on their input type, and only these can be invoked through 14621 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 14622 can be based on user input, config files, etc). The distinction is 14623 that "executable" commands cannot return anything other than a boolean 14624 result and can only support numeric or string input, whereas some 14625 discoverable commands may only be for direct use through 14626 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 14627 pointers, or other custom uses. The "executable" commands are to 14628 support parameterisations of ENGINE behaviour that can be 14629 unambiguously defined by ENGINEs and used consistently across any 14630 OpenSSL-based application. Commands have been added to all the 14631 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 14632 control over shared-library paths without source code alterations. 14633 14634 *Geoff* 14635 14636 * Changed all ENGINE implementations to dynamically allocate their 14637 ENGINEs rather than declaring them statically. Apart from this being 14638 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 14639 this also allows the implementations to compile without using the 14640 internal engine_int.h header. 14641 14642 *Geoff* 14643 14644 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 14645 'const' value. Any code that should be able to modify a RAND_METHOD 14646 should already have non-const pointers to it (ie. they should only 14647 modify their own ones). 14648 14649 *Geoff* 14650 14651 * Made a variety of little tweaks to the ENGINE code. 14652 - "atalla" and "ubsec" string definitions were moved from header files 14653 to C code. "nuron" string definitions were placed in variables 14654 rather than hard-coded - allowing parameterisation of these values 14655 later on via ctrl() commands. 14656 - Removed unused "#if 0"'d code. 14657 - Fixed engine list iteration code so it uses ENGINE_free() to release 14658 structural references. 14659 - Constified the RAND_METHOD element of ENGINE structures. 14660 - Constified various get/set functions as appropriate and added 14661 missing functions (including a catch-all ENGINE_cpy that duplicates 14662 all ENGINE values onto a new ENGINE except reference counts/state). 14663 - Removed NULL parameter checks in get/set functions. Setting a method 14664 or function to NULL is a way of cancelling out a previously set 14665 value. Passing a NULL ENGINE parameter is just plain stupid anyway 14666 and doesn't justify the extra error symbols and code. 14667 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 14668 flags from engine_int.h to engine.h. 14669 - Changed prototypes for ENGINE handler functions (init(), finish(), 14670 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 14671 14672 *Geoff* 14673 14674 * Implement binary inversion algorithm for BN_mod_inverse in addition 14675 to the algorithm using long division. The binary algorithm can be 14676 used only if the modulus is odd. On 32-bit systems, it is faster 14677 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 14678 roughly 5-15% for 256-bit moduli), so we use it only for moduli 14679 up to 450 bits. In 64-bit environments, the binary algorithm 14680 appears to be advantageous for much longer moduli; here we use it 14681 for moduli up to 2048 bits. 14682 14683 *Bodo Moeller* 14684 14685 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 14686 could not support the combine flag in choice fields. 14687 14688 *Steve Henson* 14689 14690 * Add a 'copy_extensions' option to the 'ca' utility. This copies 14691 extensions from a certificate request to the certificate. 14692 14693 *Steve Henson* 14694 14695 * Allow multiple 'certopt' and 'nameopt' options to be separated 14696 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 14697 file: this allows the display of the certificate about to be 14698 signed to be customised, to allow certain fields to be included 14699 or excluded and extension details. The old system didn't display 14700 multicharacter strings properly, omitted fields not in the policy 14701 and couldn't display additional details such as extensions. 14702 14703 *Steve Henson* 14704 14705 * Function EC_POINTs_mul for multiple scalar multiplication 14706 of an arbitrary number of elliptic curve points 14707 \sum scalars[i]*points[i], 14708 optionally including the generator defined for the EC_GROUP: 14709 scalar*generator + \sum scalars[i]*points[i]. 14710 14711 EC_POINT_mul is a simple wrapper function for the typical case 14712 that the point list has just one item (besides the optional 14713 generator). 14714 14715 *Bodo Moeller* 14716 14717 * First EC_METHODs for curves over GF(p): 14718 14719 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 14720 operations and provides various method functions that can also 14721 operate with faster implementations of modular arithmetic. 14722 14723 EC_GFp_mont_method() reuses most functions that are part of 14724 EC_GFp_simple_method, but uses Montgomery arithmetic. 14725 14726 *Bodo Moeller; point addition and point doubling 14727 implementation directly derived from source code provided by 14728 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 14729 14730 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 14731 crypto/ec/ec_lib.c): 14732 14733 Curves are EC_GROUP objects (with an optional group generator) 14734 based on EC_METHODs that are built into the library. 14735 14736 Points are EC_POINT objects based on EC_GROUP objects. 14737 14738 Most of the framework would be able to handle curves over arbitrary 14739 finite fields, but as there are no obvious types for fields other 14740 than GF(p), some functions are limited to that for now. 14741 14742 *Bodo Moeller* 14743 14744 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 14745 that the file contains a complete HTTP response. 14746 14747 *Richard Levitte* 14748 14749 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 14750 change the def and num file printf format specifier from "%-40sXXX" 14751 to "%-39s XXX". The latter will always guarantee a space after the 14752 field while the former will cause them to run together if the field 14753 is 40 of more characters long. 14754 14755 *Steve Henson* 14756 14757 * Constify the cipher and digest 'method' functions and structures 14758 and modify related functions to take constant EVP_MD and EVP_CIPHER 14759 pointers. 14760 14761 *Steve Henson* 14762 14763 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 14764 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 14765 14766 *Bodo Moeller* 14767 14768 * Modify `EVP_Digest*()` routines so they now return values. Although the 14769 internal software routines can never fail additional hardware versions 14770 might. 14771 14772 *Steve Henson* 14773 14774 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 14775 14776 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 14777 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 14778 14779 ASN1 error codes 14780 ERR_R_NESTED_ASN1_ERROR 14781 ... 14782 ERR_R_MISSING_ASN1_EOS 14783 were 4 .. 9, conflicting with 14784 ERR_LIB_RSA (= ERR_R_RSA_LIB) 14785 ... 14786 ERR_LIB_PEM (= ERR_R_PEM_LIB). 14787 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 14788 14789 Add new error code 'ERR_R_INTERNAL_ERROR'. 14790 14791 *Bodo Moeller* 14792 14793 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 14794 suffices. 14795 14796 *Bodo Moeller* 14797 14798 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 14799 sets the subject name for a new request or supersedes the 14800 subject name in a given request. Formats that can be parsed are 14801 'CN=Some Name, OU=myOU, C=IT' 14802 and 14803 'CN=Some Name/OU=myOU/C=IT'. 14804 14805 Add options '-batch' and '-verbose' to 'openssl req'. 14806 14807 *Massimiliano Pala <madwolf@hackmasters.net>* 14808 14809 * Introduce the possibility to access global variables through 14810 functions on platform were that's the best way to handle exporting 14811 global variables in shared libraries. To enable this functionality, 14812 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 14813 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 14814 is normally done by Configure or something similar). 14815 14816 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 14817 in the source file (foo.c) like this: 14818 14819 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 14820 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 14821 14822 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 14823 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 14824 14825 OPENSSL_DECLARE_GLOBAL(int,foo); 14826 #define foo OPENSSL_GLOBAL_REF(foo) 14827 OPENSSL_DECLARE_GLOBAL(double,bar); 14828 #define bar OPENSSL_GLOBAL_REF(bar) 14829 14830 The #defines are very important, and therefore so is including the 14831 header file everywhere where the defined globals are used. 14832 14833 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 14834 of ASN.1 items, but that structure is a bit different. 14835 14836 The largest change is in util/mkdef.pl which has been enhanced with 14837 better and easier to understand logic to choose which symbols should 14838 go into the Windows .def files as well as a number of fixes and code 14839 cleanup (among others, algorithm keywords are now sorted 14840 lexicographically to avoid constant rewrites). 14841 14842 *Richard Levitte* 14843 14844 * In BN_div() keep a copy of the sign of 'num' before writing the 14845 result to 'rm' because if rm==num the value will be overwritten 14846 and produce the wrong result if 'num' is negative: this caused 14847 problems with BN_mod() and BN_nnmod(). 14848 14849 *Steve Henson* 14850 14851 * Function OCSP_request_verify(). This checks the signature on an 14852 OCSP request and verifies the signer certificate. The signer 14853 certificate is just checked for a generic purpose and OCSP request 14854 trust settings. 14855 14856 *Steve Henson* 14857 14858 * Add OCSP_check_validity() function to check the validity of OCSP 14859 responses. OCSP responses are prepared in real time and may only 14860 be a few seconds old. Simply checking that the current time lies 14861 between thisUpdate and nextUpdate max reject otherwise valid responses 14862 caused by either OCSP responder or client clock inaccuracy. Instead 14863 we allow thisUpdate and nextUpdate to fall within a certain period of 14864 the current time. The age of the response can also optionally be 14865 checked. Two new options -validity_period and -status_age added to 14866 ocsp utility. 14867 14868 *Steve Henson* 14869 14870 * If signature or public key algorithm is unrecognized print out its 14871 OID rather that just UNKNOWN. 14872 14873 *Steve Henson* 14874 14875 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 14876 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 14877 ID to be generated from the issuer certificate alone which can then be 14878 passed to OCSP_id_issuer_cmp(). 14879 14880 *Steve Henson* 14881 14882 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 14883 ASN1 modules to export functions returning ASN1_ITEM pointers 14884 instead of the ASN1_ITEM structures themselves. This adds several 14885 new macros which allow the underlying ASN1 function/structure to 14886 be accessed transparently. As a result code should not use ASN1_ITEM 14887 references directly (such as &X509_it) but instead use the relevant 14888 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 14889 use of the new ASN1 code on platforms where exporting structures 14890 is problematical (for example in shared libraries) but exporting 14891 functions returning pointers to structures is not. 14892 14893 *Steve Henson* 14894 14895 * Add support for overriding the generation of SSL/TLS session IDs. 14896 These callbacks can be registered either in an SSL_CTX or per SSL. 14897 The purpose of this is to allow applications to control, if they wish, 14898 the arbitrary values chosen for use as session IDs, particularly as it 14899 can be useful for session caching in multiple-server environments. A 14900 command-line switch for testing this (and any client code that wishes 14901 to use such a feature) has been added to "s_server". 14902 14903 *Geoff Thorpe, Lutz Jaenicke* 14904 14905 * Modify mkdef.pl to recognise and parse preprocessor conditionals 14906 of the form `#if defined(...) || defined(...) || ...` and 14907 `#if !defined(...) && !defined(...) && ...`. This also avoids 14908 the growing number of special cases it was previously handling. 14909 14910 *Richard Levitte* 14911 14912 * Make all configuration macros available for application by making 14913 sure they are available in opensslconf.h, by giving them names starting 14914 with `OPENSSL_` to avoid conflicts with other packages and by making 14915 sure e_os2.h will cover all platform-specific cases together with 14916 opensslconf.h. 14917 Additionally, it is now possible to define configuration/platform- 14918 specific names (called "system identities"). In the C code, these 14919 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 14920 macro with the name beginning with `OPENSSL_SYS_`, which is determined 14921 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 14922 what is available. 14923 14924 *Richard Levitte* 14925 14926 * New option -set_serial to 'req' and 'x509' this allows the serial 14927 number to use to be specified on the command line. Previously self 14928 signed certificates were hard coded with serial number 0 and the 14929 CA options of 'x509' had to use a serial number in a file which was 14930 auto incremented. 14931 14932 *Steve Henson* 14933 14934 * New options to 'ca' utility to support V2 CRL entry extensions. 14935 Currently CRL reason, invalidity date and hold instruction are 14936 supported. Add new CRL extensions to V3 code and some new objects. 14937 14938 *Steve Henson* 14939 14940 * New function EVP_CIPHER_CTX_set_padding() this is used to 14941 disable standard block padding (aka PKCS#5 padding) in the EVP 14942 API, which was previously mandatory. This means that the data is 14943 not padded in any way and so the total length much be a multiple 14944 of the block size, otherwise an error occurs. 14945 14946 *Steve Henson* 14947 14948 * Initial (incomplete) OCSP SSL support. 14949 14950 *Steve Henson* 14951 14952 * New function OCSP_parse_url(). This splits up a URL into its host, 14953 port and path components: primarily to parse OCSP URLs. New -url 14954 option to ocsp utility. 14955 14956 *Steve Henson* 14957 14958 * New nonce behavior. The return value of OCSP_check_nonce() now 14959 reflects the various checks performed. Applications can decide 14960 whether to tolerate certain situations such as an absent nonce 14961 in a response when one was present in a request: the ocsp application 14962 just prints out a warning. New function OCSP_add1_basic_nonce() 14963 this is to allow responders to include a nonce in a response even if 14964 the request is nonce-less. 14965 14966 *Steve Henson* 14967 14968 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 14969 skipped when using openssl x509 multiple times on a single input file, 14970 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 14971 14972 *Bodo Moeller* 14973 14974 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 14975 set string type: to handle setting ASN1_TIME structures. Fix ca 14976 utility to correctly initialize revocation date of CRLs. 14977 14978 *Steve Henson* 14979 14980 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 14981 the clients preferred ciphersuites and rather use its own preferences. 14982 Should help to work around M$ SGC (Server Gated Cryptography) bug in 14983 Internet Explorer by ensuring unchanged hash method during stepup. 14984 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 14985 14986 *Lutz Jaenicke* 14987 14988 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 14989 to aes and add a new 'exist' option to print out symbols that don't 14990 appear to exist. 14991 14992 *Steve Henson* 14993 14994 * Additional options to ocsp utility to allow flags to be set and 14995 additional certificates supplied. 14996 14997 *Steve Henson* 14998 14999 * Add the option -VAfile to 'openssl ocsp', so the user can give the 15000 OCSP client a number of certificate to only verify the response 15001 signature against. 15002 15003 *Richard Levitte* 15004 15005 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 15006 handle the new API. Currently only ECB, CBC modes supported. Add new 15007 AES OIDs. 15008 15009 Add TLS AES ciphersuites as described in RFC3268, "Advanced 15010 Encryption Standard (AES) Ciphersuites for Transport Layer 15011 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 15012 not enabled by default and were not part of the "ALL" ciphersuite 15013 alias because they were not yet official; they could be 15014 explicitly requested by specifying the "AESdraft" ciphersuite 15015 group alias. In the final release of OpenSSL 0.9.7, the group 15016 alias is called "AES" and is part of "ALL".) 15017 15018 *Ben Laurie, Steve Henson, Bodo Moeller* 15019 15020 * New function OCSP_copy_nonce() to copy nonce value (if present) from 15021 request to response. 15022 15023 *Steve Henson* 15024 15025 * Functions for OCSP responders. OCSP_request_onereq_count(), 15026 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 15027 extract information from a certificate request. OCSP_response_create() 15028 creates a response and optionally adds a basic response structure. 15029 OCSP_basic_add1_status() adds a complete single response to a basic 15030 response and returns the OCSP_SINGLERESP structure just added (to allow 15031 extensions to be included for example). OCSP_basic_add1_cert() adds a 15032 certificate to a basic response and OCSP_basic_sign() signs a basic 15033 response with various flags. New helper functions ASN1_TIME_check() 15034 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 15035 (converts ASN1_TIME to GeneralizedTime). 15036 15037 *Steve Henson* 15038 15039 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 15040 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 15041 structure from a certificate. X509_pubkey_digest() digests the public_key 15042 contents: this is used in various key identifiers. 15043 15044 *Steve Henson* 15045 15046 * Make sk_sort() tolerate a NULL argument. 15047 15048 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 15049 15050 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 15051 passed by the function are trusted implicitly. If any of them signed the 15052 response then it is assumed to be valid and is not verified. 15053 15054 *Steve Henson* 15055 15056 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 15057 to data. This was previously part of the PKCS7 ASN1 code. This 15058 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 15059 *Steve Henson, reported by Kenneth R. Robinette 15060 <support@securenetterm.com>* 15061 15062 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 15063 routines: without these tracing memory leaks is very painful. 15064 Fix leaks in PKCS12 and PKCS7 routines. 15065 15066 *Steve Henson* 15067 15068 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 15069 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 15070 effectively meant GeneralizedTime would never be used. Now it 15071 is initialised to -1 but X509_time_adj() now has to check the value 15072 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 15073 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 15074 *Steve Henson, reported by Kenneth R. Robinette 15075 <support@securenetterm.com>* 15076 15077 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 15078 result in a zero length in the ASN1_INTEGER structure which was 15079 not consistent with the structure when d2i_ASN1_INTEGER() was used 15080 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 15081 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 15082 where it did not print out a minus for negative ASN1_INTEGER. 15083 15084 *Steve Henson* 15085 15086 * Add summary printout to ocsp utility. The various functions which 15087 convert status values to strings have been renamed to: 15088 OCSP_response_status_str(), OCSP_cert_status_str() and 15089 OCSP_crl_reason_str() and are no longer static. New options 15090 to verify nonce values and to disable verification. OCSP response 15091 printout format cleaned up. 15092 15093 *Steve Henson* 15094 15095 * Add additional OCSP certificate checks. These are those specified 15096 in RFC2560. This consists of two separate checks: the CA of the 15097 certificate being checked must either be the OCSP signer certificate 15098 or the issuer of the OCSP signer certificate. In the latter case the 15099 OCSP signer certificate must contain the OCSP signing extended key 15100 usage. This check is performed by attempting to match the OCSP 15101 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 15102 in the OCSP_CERTID structures of the response. 15103 15104 *Steve Henson* 15105 15106 * Initial OCSP certificate verification added to OCSP_basic_verify() 15107 and related routines. This uses the standard OpenSSL certificate 15108 verify routines to perform initial checks (just CA validity) and 15109 to obtain the certificate chain. Then additional checks will be 15110 performed on the chain. Currently the root CA is checked to see 15111 if it is explicitly trusted for OCSP signing. This is used to set 15112 a root CA as a global signing root: that is any certificate that 15113 chains to that CA is an acceptable OCSP signing certificate. 15114 15115 *Steve Henson* 15116 15117 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 15118 extensions from a separate configuration file. 15119 As when reading extensions from the main configuration file, 15120 the '-extensions ...' option may be used for specifying the 15121 section to use. 15122 15123 *Massimiliano Pala <madwolf@comune.modena.it>* 15124 15125 * New OCSP utility. Allows OCSP requests to be generated or 15126 read. The request can be sent to a responder and the output 15127 parsed, outputted or printed in text form. Not complete yet: 15128 still needs to check the OCSP response validity. 15129 15130 *Steve Henson* 15131 15132 * New subcommands for 'openssl ca': 15133 `openssl ca -status <serial>` prints the status of the cert with 15134 the given serial number (according to the index file). 15135 `openssl ca -updatedb` updates the expiry status of certificates 15136 in the index file. 15137 15138 *Massimiliano Pala <madwolf@comune.modena.it>* 15139 15140 * New '-newreq-nodes' command option to CA.pl. This is like 15141 '-newreq', but calls 'openssl req' with the '-nodes' option 15142 so that the resulting key is not encrypted. 15143 15144 *Damien Miller <djm@mindrot.org>* 15145 15146 * New configuration for the GNU Hurd. 15147 15148 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 15149 15150 * Initial code to implement OCSP basic response verify. This 15151 is currently incomplete. Currently just finds the signer's 15152 certificate and verifies the signature on the response. 15153 15154 *Steve Henson* 15155 15156 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 15157 value of OPENSSLDIR. This is available via the new '-d' option 15158 to 'openssl version', and is also included in 'openssl version -a'. 15159 15160 *Bodo Moeller* 15161 15162 * Allowing defining memory allocation callbacks that will be given 15163 file name and line number information in additional arguments 15164 (a `const char*` and an int). The basic functionality remains, as 15165 well as the original possibility to just replace malloc(), 15166 realloc() and free() by functions that do not know about these 15167 additional arguments. To register and find out the current 15168 settings for extended allocation functions, the following 15169 functions are provided: 15170 15171 CRYPTO_set_mem_ex_functions 15172 CRYPTO_set_locked_mem_ex_functions 15173 CRYPTO_get_mem_ex_functions 15174 CRYPTO_get_locked_mem_ex_functions 15175 15176 These work the same way as CRYPTO_set_mem_functions and friends. 15177 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 15178 extended allocation function is enabled. 15179 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 15180 a conventional allocation function is enabled. 15181 15182 *Richard Levitte, Bodo Moeller* 15183 15184 * Finish off removing the remaining LHASH function pointer casts. 15185 There should no longer be any prototype-casting required when using 15186 the LHASH abstraction, and any casts that remain are "bugs". See 15187 the callback types and macros at the head of lhash.h for details 15188 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 15189 15190 *Geoff Thorpe* 15191 15192 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 15193 If /dev/[u]random devices are not available or do not return enough 15194 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 15195 be queried. 15196 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 15197 /etc/entropy will be queried once each in this sequence, querying stops 15198 when enough entropy was collected without querying more sockets. 15199 15200 *Lutz Jaenicke* 15201 15202 * Change the Unix RAND_poll() variant to be able to poll several 15203 random devices, as specified by DEVRANDOM, until a sufficient amount 15204 of data has been collected. We spend at most 10 ms on each file 15205 (select timeout) and read in non-blocking mode. DEVRANDOM now 15206 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 15207 (previously it was just the string "/dev/urandom"), so on typical 15208 platforms the 10 ms delay will never occur. 15209 Also separate out the Unix variant to its own file, rand_unix.c. 15210 For VMS, there's a currently-empty rand_vms.c. 15211 15212 *Richard Levitte* 15213 15214 * Move OCSP client related routines to ocsp_cl.c. These 15215 provide utility functions which an application needing 15216 to issue a request to an OCSP responder and analyse the 15217 response will typically need: as opposed to those which an 15218 OCSP responder itself would need which will be added later. 15219 15220 OCSP_request_sign() signs an OCSP request with an API similar 15221 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 15222 response. OCSP_response_get1_basic() extracts basic response 15223 from response. OCSP_resp_find_status(): finds and extracts status 15224 information from an OCSP_CERTID structure (which will be created 15225 when the request structure is built). These are built from lower 15226 level functions which work on OCSP_SINGLERESP structures but 15227 won't normally be used unless the application wishes to examine 15228 extensions in the OCSP response for example. 15229 15230 Replace nonce routines with a pair of functions. 15231 OCSP_request_add1_nonce() adds a nonce value and optionally 15232 generates a random value. OCSP_check_nonce() checks the 15233 validity of the nonce in an OCSP response. 15234 15235 *Steve Henson* 15236 15237 * Change function OCSP_request_add() to OCSP_request_add0_id(). 15238 This doesn't copy the supplied OCSP_CERTID and avoids the 15239 need to free up the newly created id. Change return type 15240 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 15241 This can then be used to add extensions to the request. 15242 Deleted OCSP_request_new(), since most of its functionality 15243 is now in OCSP_REQUEST_new() (and the case insensitive name 15244 clash) apart from the ability to set the request name which 15245 will be added elsewhere. 15246 15247 *Steve Henson* 15248 15249 * Update OCSP API. Remove obsolete extensions argument from 15250 various functions. Extensions are now handled using the new 15251 OCSP extension code. New simple OCSP HTTP function which 15252 can be used to send requests and parse the response. 15253 15254 *Steve Henson* 15255 15256 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 15257 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 15258 uses the special reorder version of SET OF to sort the attributes 15259 and reorder them to match the encoded order. This resolves a long 15260 standing problem: a verify on a PKCS7 structure just after signing 15261 it used to fail because the attribute order did not match the 15262 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 15263 it uses the received order. This is necessary to tolerate some broken 15264 software that does not order SET OF. This is handled by encoding 15265 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 15266 to produce the required SET OF. 15267 15268 *Steve Henson* 15269 15270 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 15271 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 15272 files to get correct declarations of the ASN.1 item variables. 15273 15274 *Richard Levitte* 15275 15276 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 15277 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 15278 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 15279 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 15280 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 15281 ASN1_ITEM and no wrapper functions. 15282 15283 *Steve Henson* 15284 15285 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 15286 replace the old function pointer based I/O routines. Change most of 15287 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 15288 15289 *Steve Henson* 15290 15291 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 15292 lines, recognize more "algorithms" that can be deselected, and make 15293 it complain about algorithm deselection that isn't recognised. 15294 15295 *Richard Levitte* 15296 15297 * New ASN1 functions to handle dup, sign, verify, digest, pack and 15298 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 15299 to use new functions. Add NO_ASN1_OLD which can be set to remove 15300 some old style ASN1 functions: this can be used to determine if old 15301 code will still work when these eventually go away. 15302 15303 *Steve Henson* 15304 15305 * New extension functions for OCSP structures, these follow the 15306 same conventions as certificates and CRLs. 15307 15308 *Steve Henson* 15309 15310 * New function X509V3_add1_i2d(). This automatically encodes and 15311 adds an extension. Its behaviour can be customised with various 15312 flags to append, replace or delete. Various wrappers added for 15313 certificates and CRLs. 15314 15315 *Steve Henson* 15316 15317 * Fix to avoid calling the underlying ASN1 print routine when 15318 an extension cannot be parsed. Correct a typo in the 15319 OCSP_SERVICELOC extension. Tidy up print OCSP format. 15320 15321 *Steve Henson* 15322 15323 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 15324 entries for variables. 15325 15326 *Steve Henson* 15327 15328 * Add functionality to `apps/openssl.c` for detecting locking 15329 problems: As the program is single-threaded, all we have 15330 to do is register a locking callback using an array for 15331 storing which locks are currently held by the program. 15332 15333 *Bodo Moeller* 15334 15335 * Use a lock around the call to CRYPTO_get_ex_new_index() in 15336 SSL_get_ex_data_X509_STORE_idx(), which is used in 15337 ssl_verify_cert_chain() and thus can be called at any time 15338 during TLS/SSL handshakes so that thread-safety is essential. 15339 Unfortunately, the ex_data design is not at all suited 15340 for multi-threaded use, so it probably should be abolished. 15341 15342 *Bodo Moeller* 15343 15344 * Added Broadcom "ubsec" ENGINE to OpenSSL. 15345 15346 *Broadcom, tweaked and integrated by Geoff Thorpe* 15347 15348 * Move common extension printing code to new function 15349 X509V3_print_extensions(). Reorganise OCSP print routines and 15350 implement some needed OCSP ASN1 functions. Add OCSP extensions. 15351 15352 *Steve Henson* 15353 15354 * New function X509_signature_print() to remove duplication in some 15355 print routines. 15356 15357 *Steve Henson* 15358 15359 * Add a special meaning when SET OF and SEQUENCE OF flags are both 15360 set (this was treated exactly the same as SET OF previously). This 15361 is used to reorder the STACK representing the structure to match the 15362 encoding. This will be used to get round a problem where a PKCS7 15363 structure which was signed could not be verified because the STACK 15364 order did not reflect the encoded order. 15365 15366 *Steve Henson* 15367 15368 * Reimplement the OCSP ASN1 module using the new code. 15369 15370 *Steve Henson* 15371 15372 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 15373 for its ASN1 operations. The old style function pointers still exist 15374 for now but they will eventually go away. 15375 15376 *Steve Henson* 15377 15378 * Merge in replacement ASN1 code from the ASN1 branch. This almost 15379 completely replaces the old ASN1 functionality with a table driven 15380 encoder and decoder which interprets an ASN1_ITEM structure describing 15381 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 15382 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 15383 has also been converted to the new form. 15384 15385 *Steve Henson* 15386 15387 * Change BN_mod_exp_recp so that negative moduli are tolerated 15388 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 15389 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 15390 for negative moduli. 15391 15392 *Bodo Moeller* 15393 15394 * Fix BN_uadd and BN_usub: Always return non-negative results instead 15395 of not touching the result's sign bit. 15396 15397 *Bodo Moeller* 15398 15399 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 15400 set. 15401 15402 *Bodo Moeller* 15403 15404 * Changed the LHASH code to use prototypes for callbacks, and created 15405 macros to declare and implement thin (optionally static) functions 15406 that provide type-safety and avoid function pointer casting for the 15407 type-specific callbacks. 15408 15409 *Geoff Thorpe* 15410 15411 * Added Kerberos Cipher Suites to be used with TLS, as written in 15412 RFC 2712. 15413 *Veers Staats <staatsvr@asc.hpc.mil>, 15414 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 15415 15416 * Reformat the FAQ so the different questions and answers can be divided 15417 in sections depending on the subject. 15418 15419 *Richard Levitte* 15420 15421 * Have the zlib compression code load ZLIB.DLL dynamically under 15422 Windows. 15423 15424 *Richard Levitte* 15425 15426 * New function BN_mod_sqrt for computing square roots modulo a prime 15427 (using the probabilistic Tonelli-Shanks algorithm unless 15428 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 15429 be handled deterministically). 15430 15431 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 15432 15433 * Make BN_mod_inverse faster by explicitly handling small quotients 15434 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 15435 512 bits], about 30% for larger ones [1024 or 2048 bits].) 15436 15437 *Bodo Moeller* 15438 15439 * New function BN_kronecker. 15440 15441 *Bodo Moeller* 15442 15443 * Fix BN_gcd so that it works on negative inputs; the result is 15444 positive unless both parameters are zero. 15445 Previously something reasonably close to an infinite loop was 15446 possible because numbers could be growing instead of shrinking 15447 in the implementation of Euclid's algorithm. 15448 15449 *Bodo Moeller* 15450 15451 * Fix BN_is_word() and BN_is_one() macros to take into account the 15452 sign of the number in question. 15453 15454 Fix BN_is_word(a,w) to work correctly for w == 0. 15455 15456 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 15457 because its test if the absolute value of 'a' equals 'w'. 15458 Note that BN_abs_is_word does *not* handle w == 0 reliably; 15459 it exists mostly for use in the implementations of BN_is_zero(), 15460 BN_is_one(), and BN_is_word(). 15461 15462 *Bodo Moeller* 15463 15464 * New function BN_swap. 15465 15466 *Bodo Moeller* 15467 15468 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 15469 the exponentiation functions are more likely to produce reasonable 15470 results on negative inputs. 15471 15472 *Bodo Moeller* 15473 15474 * Change BN_mod_mul so that the result is always non-negative. 15475 Previously, it could be negative if one of the factors was negative; 15476 I don't think anyone really wanted that behaviour. 15477 15478 *Bodo Moeller* 15479 15480 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 15481 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 15482 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 15483 and add new functions: 15484 15485 BN_nnmod 15486 BN_mod_sqr 15487 BN_mod_add 15488 BN_mod_add_quick 15489 BN_mod_sub 15490 BN_mod_sub_quick 15491 BN_mod_lshift1 15492 BN_mod_lshift1_quick 15493 BN_mod_lshift 15494 BN_mod_lshift_quick 15495 15496 These functions always generate non-negative results. 15497 15498 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 15499 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 15500 15501 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 15502 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 15503 be reduced modulo `m`. 15504 15505 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 15506 15507<!-- 15508 The following entry accidentally appeared in the CHANGES file 15509 distributed with OpenSSL 0.9.7. The modifications described in 15510 it do *not* apply to OpenSSL 0.9.7. 15511 15512 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 15513 was actually never needed) and in BN_mul(). The removal in BN_mul() 15514 required a small change in bn_mul_part_recursive() and the addition 15515 of the functions bn_cmp_part_words(), bn_sub_part_words() and 15516 bn_add_part_words(), which do the same thing as bn_cmp_words(), 15517 bn_sub_words() and bn_add_words() except they take arrays with 15518 differing sizes. 15519 15520 *Richard Levitte* 15521--> 15522 15523 * In 'openssl passwd', verify passwords read from the terminal 15524 unless the '-salt' option is used (which usually means that 15525 verification would just waste user's time since the resulting 15526 hash is going to be compared with some given password hash) 15527 or the new '-noverify' option is used. 15528 15529 This is an incompatible change, but it does not affect 15530 non-interactive use of 'openssl passwd' (passwords on the command 15531 line, '-stdin' option, '-in ...' option) and thus should not 15532 cause any problems. 15533 15534 *Bodo Moeller* 15535 15536 * Remove all references to RSAref, since there's no more need for it. 15537 15538 *Richard Levitte* 15539 15540 * Make DSO load along a path given through an environment variable 15541 (SHLIB_PATH) with shl_load(). 15542 15543 *Richard Levitte* 15544 15545 * Constify the ENGINE code as a result of BIGNUM constification. 15546 Also constify the RSA code and most things related to it. In a 15547 few places, most notable in the depth of the ASN.1 code, ugly 15548 casts back to non-const were required (to be solved at a later 15549 time) 15550 15551 *Richard Levitte* 15552 15553 * Make it so the openssl application has all engines loaded by default. 15554 15555 *Richard Levitte* 15556 15557 * Constify the BIGNUM routines a little more. 15558 15559 *Richard Levitte* 15560 15561 * Add the following functions: 15562 15563 ENGINE_load_cswift() 15564 ENGINE_load_chil() 15565 ENGINE_load_atalla() 15566 ENGINE_load_nuron() 15567 ENGINE_load_builtin_engines() 15568 15569 That way, an application can itself choose if external engines that 15570 are built-in in OpenSSL shall ever be used or not. The benefit is 15571 that applications won't have to be linked with libdl or other dso 15572 libraries unless it's really needed. 15573 15574 Changed 'openssl engine' to load all engines on demand. 15575 Changed the engine header files to avoid the duplication of some 15576 declarations (they differed!). 15577 15578 *Richard Levitte* 15579 15580 * 'openssl engine' can now list capabilities. 15581 15582 *Richard Levitte* 15583 15584 * Better error reporting in 'openssl engine'. 15585 15586 *Richard Levitte* 15587 15588 * Never call load_dh_param(NULL) in s_server. 15589 15590 *Bodo Moeller* 15591 15592 * Add engine application. It can currently list engines by name and 15593 identity, and test if they are actually available. 15594 15595 *Richard Levitte* 15596 15597 * Improve RPM specification file by forcing symbolic linking and making 15598 sure the installed documentation is also owned by root.root. 15599 15600 *Damien Miller <djm@mindrot.org>* 15601 15602 * Give the OpenSSL applications more possibilities to make use of 15603 keys (public as well as private) handled by engines. 15604 15605 *Richard Levitte* 15606 15607 * Add OCSP code that comes from CertCo. 15608 15609 *Richard Levitte* 15610 15611 * Add VMS support for the Rijndael code. 15612 15613 *Richard Levitte* 15614 15615 * Added untested support for Nuron crypto accelerator. 15616 15617 *Ben Laurie* 15618 15619 * Add support for external cryptographic devices. This code was 15620 previously distributed separately as the "engine" branch. 15621 15622 *Geoff Thorpe, Richard Levitte* 15623 15624 * Rework the filename-translation in the DSO code. It is now possible to 15625 have far greater control over how a "name" is turned into a filename 15626 depending on the operating environment and any oddities about the 15627 different shared library filenames on each system. 15628 15629 *Geoff Thorpe* 15630 15631 * Support threads on FreeBSD-elf in Configure. 15632 15633 *Richard Levitte* 15634 15635 * Fix for SHA1 assembly problem with MASM: it produces 15636 warnings about corrupt line number information when assembling 15637 with debugging information. This is caused by the overlapping 15638 of two sections. 15639 15640 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 15641 15642 * NCONF changes. 15643 NCONF_get_number() has no error checking at all. As a replacement, 15644 NCONF_get_number_e() is defined (`_e` for "error checking") and is 15645 promoted strongly. The old NCONF_get_number is kept around for 15646 binary backward compatibility. 15647 Make it possible for methods to load from something other than a BIO, 15648 by providing a function pointer that is given a name instead of a BIO. 15649 For example, this could be used to load configuration data from an 15650 LDAP server. 15651 15652 *Richard Levitte* 15653 15654 * Fix for non blocking accept BIOs. Added new I/O special reason 15655 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 15656 with non blocking I/O was not possible because no retry code was 15657 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 15658 this case. 15659 15660 *Steve Henson* 15661 15662 * Added the beginnings of Rijndael support. 15663 15664 *Ben Laurie* 15665 15666 * Fix for bug in DirectoryString mask setting. Add support for 15667 X509_NAME_print_ex() in 'req' and X509_print_ex() function 15668 to allow certificate printing to more controllable, additional 15669 'certopt' option to 'x509' to allow new printing options to be 15670 set. 15671 15672 *Steve Henson* 15673 15674 * Clean old EAY MD5 hack from e_os.h. 15675 15676 *Richard Levitte* 15677 15678### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 15679 15680 * Fix null-pointer assignment in do_change_cipher_spec() revealed 15681 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 15682 15683 *Joe Orton, Steve Henson* 15684 15685### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 15686 15687 * Fix additional bug revealed by the NISCC test suite: 15688 15689 Stop bug triggering large recursion when presented with 15690 certain ASN.1 tags ([CVE-2003-0851]) 15691 15692 *Steve Henson* 15693 15694### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 15695 15696 * Fix various bugs revealed by running the NISCC test suite: 15697 15698 Stop out of bounds reads in the ASN1 code when presented with 15699 invalid tags (CVE-2003-0543 and CVE-2003-0544). 15700 15701 If verify callback ignores invalid public key errors don't try to check 15702 certificate signature with the NULL public key. 15703 15704 *Steve Henson* 15705 15706 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 15707 if the server requested one: as stated in TLS 1.0 and SSL 3.0 15708 specifications. 15709 15710 *Steve Henson* 15711 15712 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 15713 extra data after the compression methods not only for TLS 1.0 15714 but also for SSL 3.0 (as required by the specification). 15715 15716 *Bodo Moeller; problem pointed out by Matthias Loepfe* 15717 15718 * Change X509_certificate_type() to mark the key as exported/exportable 15719 when it's 512 *bits* long, not 512 bytes. 15720 15721 *Richard Levitte* 15722 15723### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 15724 15725 * Countermeasure against the Klima-Pokorny-Rosa extension of 15726 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 15727 a protocol version number mismatch like a decryption error 15728 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 15729 15730 *Bodo Moeller* 15731 15732 * Turn on RSA blinding by default in the default implementation 15733 to avoid a timing attack. Applications that don't want it can call 15734 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 15735 They would be ill-advised to do so in most cases. 15736 15737 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 15738 15739 * Change RSA blinding code so that it works when the PRNG is not 15740 seeded (in this case, the secret RSA exponent is abused as 15741 an unpredictable seed -- if it is not unpredictable, there 15742 is no point in blinding anyway). Make RSA blinding thread-safe 15743 by remembering the creator's thread ID in rsa->blinding and 15744 having all other threads use local one-time blinding factors 15745 (this requires more computation than sharing rsa->blinding, but 15746 avoids excessive locking; and if an RSA object is not shared 15747 between threads, blinding will still be very fast). 15748 15749 *Bodo Moeller* 15750 15751### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 15752 15753 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 15754 via timing by performing a MAC computation even if incorrect 15755 block cipher padding has been found. This is a countermeasure 15756 against active attacks where the attacker has to distinguish 15757 between bad padding and a MAC verification error. ([CVE-2003-0078]) 15758 15759 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 15760 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 15761 Martin Vuagnoux (EPFL, Ilion)* 15762 15763### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 15764 15765 * New function OPENSSL_cleanse(), which is used to cleanse a section of 15766 memory from its contents. This is done with a counter that will 15767 place alternating values in each byte. This can be used to solve 15768 two issues: 1) the removal of calls to memset() by highly optimizing 15769 compilers, and 2) cleansing with other values than 0, since those can 15770 be read through on certain media, for example a swap space on disk. 15771 15772 *Geoff Thorpe* 15773 15774 * Bugfix: client side session caching did not work with external caching, 15775 because the session->cipher setting was not restored when reloading 15776 from the external cache. This problem was masked, when 15777 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 15778 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 15779 15780 *Lutz Jaenicke* 15781 15782 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 15783 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 15784 15785 *Zeev Lieber <zeev-l@yahoo.com>* 15786 15787 * Undo an undocumented change introduced in 0.9.6e which caused 15788 repeated calls to OpenSSL_add_all_ciphers() and 15789 OpenSSL_add_all_digests() to be ignored, even after calling 15790 EVP_cleanup(). 15791 15792 *Richard Levitte* 15793 15794 * Change the default configuration reader to deal with last line not 15795 being properly terminated. 15796 15797 *Richard Levitte* 15798 15799 * Change X509_NAME_cmp() so it applies the special rules on handling 15800 DN values that are of type PrintableString, as well as RDNs of type 15801 emailAddress where the value has the type ia5String. 15802 15803 *stefank@valicert.com via Richard Levitte* 15804 15805 * Add an SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 15806 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 15807 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 15808 the bitwise-OR of the two for use by the majority of applications 15809 wanting this behaviour, and update the docs. The documented 15810 behaviour and actual behaviour were inconsistent and had been 15811 changing anyway, so this is more a bug-fix than a behavioural 15812 change. 15813 15814 *Geoff Thorpe, diagnosed by Nadav Har'El* 15815 15816 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 15817 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 15818 15819 *Bodo Moeller* 15820 15821 * Fix initialization code race conditions in 15822 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 15823 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 15824 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 15825 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 15826 ssl2_get_cipher_by_char(), 15827 ssl3_get_cipher_by_char(). 15828 15829 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 15830 15831 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 15832 the cached sessions are flushed, as the remove_cb() might use ex_data 15833 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 15834 (see [openssl.org #212]). 15835 15836 *Geoff Thorpe, Lutz Jaenicke* 15837 15838 * Fix typo in OBJ_txt2obj which incorrectly passed the content 15839 length, instead of the encoding length to d2i_ASN1_OBJECT. 15840 15841 *Steve Henson* 15842 15843### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 15844 15845 * [In 0.9.6g-engine release:] 15846 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 15847 15848 *Lynn Gazis <lgazis@rainbow.com>* 15849 15850### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 15851 15852 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 15853 and get fix the header length calculation. 15854 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 15855 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 15856 15857 * Use proper error handling instead of 'assertions' in buffer 15858 overflow checks added in 0.9.6e. This prevents DoS (the 15859 assertions could call abort()). 15860 15861 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 15862 15863### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 15864 15865 * Add various sanity checks to asn1_get_length() to reject 15866 the ASN1 length bytes if they exceed sizeof(long), will appear 15867 negative or the content length exceeds the length of the 15868 supplied buffer. 15869 15870 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 15871 15872 * Fix cipher selection routines: ciphers without encryption had no flags 15873 for the cipher strength set and where therefore not handled correctly 15874 by the selection routines (PR #130). 15875 15876 *Lutz Jaenicke* 15877 15878 * Fix EVP_dsa_sha macro. 15879 15880 *Nils Larsch* 15881 15882 * New option 15883 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 15884 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 15885 that was added in OpenSSL 0.9.6d. 15886 15887 As the countermeasure turned out to be incompatible with some 15888 broken SSL implementations, the new option is part of SSL_OP_ALL. 15889 SSL_OP_ALL is usually employed when compatibility with weird SSL 15890 implementations is desired (e.g. '-bugs' option to 's_client' and 15891 's_server'), so the new option is automatically set in many 15892 applications. 15893 15894 *Bodo Moeller* 15895 15896 * Changes in security patch: 15897 15898 Changes marked "(CHATS)" were sponsored by the Defense Advanced 15899 Research Projects Agency (DARPA) and Air Force Research Laboratory, 15900 Air Force Materiel Command, USAF, under agreement number 15901 F30602-01-2-0537. 15902 15903 * Add various sanity checks to asn1_get_length() to reject 15904 the ASN1 length bytes if they exceed sizeof(long), will appear 15905 negative or the content length exceeds the length of the 15906 supplied buffer. ([CVE-2002-0659]) 15907 15908 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 15909 15910 * Assertions for various potential buffer overflows, not known to 15911 happen in practice. 15912 15913 *Ben Laurie (CHATS)* 15914 15915 * Various temporary buffers to hold ASCII versions of integers were 15916 too small for 64 bit platforms. ([CVE-2002-0655]) 15917 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 15918 15919 * Remote buffer overflow in SSL3 protocol - an attacker could 15920 supply an oversized session ID to a client. ([CVE-2002-0656]) 15921 15922 *Ben Laurie (CHATS)* 15923 15924 * Remote buffer overflow in SSL2 protocol - an attacker could 15925 supply an oversized client master key. ([CVE-2002-0656]) 15926 15927 *Ben Laurie (CHATS)* 15928 15929### Changes between 0.9.6c and 0.9.6d [9 May 2002] 15930 15931 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 15932 encoded as NULL) with id-dsa-with-sha1. 15933 15934 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 15935 15936 * Check various `X509_...()` return values in `apps/req.c`. 15937 15938 *Nils Larsch <nla@trustcenter.de>* 15939 15940 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 15941 an end-of-file condition would erroneously be flagged, when the CRLF 15942 was just at the end of a processed block. The bug was discovered when 15943 processing data through a buffering memory BIO handing the data to a 15944 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 15945 <ptsekov@syntrex.com> and Nedelcho Stanev. 15946 15947 *Lutz Jaenicke* 15948 15949 * Implement a countermeasure against a vulnerability recently found 15950 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 15951 before application data chunks to avoid the use of known IVs 15952 with data potentially chosen by the attacker. 15953 15954 *Bodo Moeller* 15955 15956 * Fix length checks in ssl3_get_client_hello(). 15957 15958 *Bodo Moeller* 15959 15960 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 15961 to prevent ssl3_read_internal() from incorrectly assuming that 15962 ssl3_read_bytes() found application data while handshake 15963 processing was enabled when in fact s->s3->in_read_app_data was 15964 merely automatically cleared during the initial handshake. 15965 15966 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 15967 15968 * Fix object definitions for Private and Enterprise: they were not 15969 recognized in their shortname (=lowercase) representation. Extend 15970 obj_dat.pl to issue an error when using undefined keywords instead 15971 of silently ignoring the problem (Svenning Sorensen 15972 <sss@sss.dnsalias.net>). 15973 15974 *Lutz Jaenicke* 15975 15976 * Fix DH_generate_parameters() so that it works for 'non-standard' 15977 generators, i.e. generators other than 2 and 5. (Previously, the 15978 code did not properly initialise the 'add' and 'rem' values to 15979 BN_generate_prime().) 15980 15981 In the new general case, we do not insist that 'generator' is 15982 actually a primitive root: This requirement is rather pointless; 15983 a generator of the order-q subgroup is just as good, if not 15984 better. 15985 15986 *Bodo Moeller* 15987 15988 * Map new X509 verification errors to alerts. Discovered and submitted by 15989 Tom Wu <tom@arcot.com>. 15990 15991 *Lutz Jaenicke* 15992 15993 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 15994 returning non-zero before the data has been completely received 15995 when using non-blocking I/O. 15996 15997 *Bodo Moeller; problem pointed out by John Hughes* 15998 15999 * Some of the ciphers missed the strength entry (SSL_LOW etc). 16000 16001 *Ben Laurie, Lutz Jaenicke* 16002 16003 * Fix bug in SSL_clear(): bad sessions were not removed (found by 16004 Yoram Zahavi <YoramZ@gilian.com>). 16005 16006 *Lutz Jaenicke* 16007 16008 * Add information about CygWin 1.3 and on, and preserve proper 16009 configuration for the versions before that. 16010 16011 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 16012 16013 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 16014 check whether we deal with a copy of a session and do not delete from 16015 the cache in this case. Problem reported by "Izhar Shoshani Levi" 16016 <izhar@checkpoint.com>. 16017 16018 *Lutz Jaenicke* 16019 16020 * Do not store session data into the internal session cache, if it 16021 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 16022 flag is set). Proposed by Aslam <aslam@funk.com>. 16023 16024 *Lutz Jaenicke* 16025 16026 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 16027 value is 0. 16028 16029 *Richard Levitte* 16030 16031 * [In 0.9.6d-engine release:] 16032 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 16033 16034 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 16035 16036 * Add the configuration target linux-s390x. 16037 16038 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 16039 16040 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 16041 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 16042 variable as an indication that a ClientHello message has been 16043 received. As the flag value will be lost between multiple 16044 invocations of ssl3_accept when using non-blocking I/O, the 16045 function may not be aware that a handshake has actually taken 16046 place, thus preventing a new session from being added to the 16047 session cache. 16048 16049 To avoid this problem, we now set s->new_session to 2 instead of 16050 using a local variable. 16051 16052 *Lutz Jaenicke, Bodo Moeller* 16053 16054 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 16055 if the SSL_R_LENGTH_MISMATCH error is detected. 16056 16057 *Geoff Thorpe, Bodo Moeller* 16058 16059 * New 'shared_ldflag' column in Configure platform table. 16060 16061 *Richard Levitte* 16062 16063 * Fix EVP_CIPHER_mode macro. 16064 16065 *"Dan S. Camper" <dan@bti.net>* 16066 16067 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 16068 type, we must throw them away by setting rr->length to 0. 16069 16070 *D P Chang <dpc@qualys.com>* 16071 16072### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 16073 16074 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 16075 <Dominikus.Scherkl@biodata.com>. (The previous implementation 16076 worked incorrectly for those cases where range = `10..._2` and 16077 `3*range` is two bits longer than range.) 16078 16079 *Bodo Moeller* 16080 16081 * Only add signing time to PKCS7 structures if it is not already 16082 present. 16083 16084 *Steve Henson* 16085 16086 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 16087 OBJ_ld_ce should be OBJ_id_ce. 16088 Also some ip-pda OIDs in crypto/objects/objects.txt were 16089 incorrect (cf. RFC 3039). 16090 16091 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 16092 16093 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 16094 returns early because it has nothing to do. 16095 16096 *Andy Schneider <andy.schneider@bjss.co.uk>* 16097 16098 * [In 0.9.6c-engine release:] 16099 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 16100 16101 *Andy Schneider <andy.schneider@bjss.co.uk>* 16102 16103 * [In 0.9.6c-engine release:] 16104 Add support for Cryptographic Appliance's keyserver technology. 16105 (Use engine 'keyclient') 16106 16107 *Cryptographic Appliances and Geoff Thorpe* 16108 16109 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 16110 is called via tools/c89.sh because arguments have to be 16111 rearranged (all '-L' options must appear before the first object 16112 modules). 16113 16114 *Richard Shapiro <rshapiro@abinitio.com>* 16115 16116 * [In 0.9.6c-engine release:] 16117 Add support for Broadcom crypto accelerator cards, backported 16118 from 0.9.7. 16119 16120 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 16121 16122 * [In 0.9.6c-engine release:] 16123 Add support for SureWare crypto accelerator cards from 16124 Baltimore Technologies. (Use engine 'sureware') 16125 16126 *Baltimore Technologies and Mark Cox* 16127 16128 * [In 0.9.6c-engine release:] 16129 Add support for crypto accelerator cards from Accelerated 16130 Encryption Processing, www.aep.ie. (Use engine 'aep') 16131 16132 *AEP Inc. and Mark Cox* 16133 16134 * Add a configuration entry for gcc on UnixWare. 16135 16136 *Gary Benson <gbenson@redhat.com>* 16137 16138 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 16139 messages are stored in a single piece (fixed-length part and 16140 variable-length part combined) and fix various bugs found on the way. 16141 16142 *Bodo Moeller* 16143 16144 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 16145 instead. BIO_gethostbyname() does not know what timeouts are 16146 appropriate, so entries would stay in cache even when they have 16147 become invalid. 16148 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 16149 16150 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 16151 faced with a pathologically small ClientHello fragment that does 16152 not contain client_version: Instead of aborting with an error, 16153 simply choose the highest available protocol version (i.e., 16154 TLS 1.0 unless it is disabled). In practice, ClientHello 16155 messages are never sent like this, but this change gives us 16156 strictly correct behaviour at least for TLS. 16157 16158 *Bodo Moeller* 16159 16160 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 16161 never resets s->method to s->ctx->method when called from within 16162 one of the SSL handshake functions. 16163 16164 *Bodo Moeller; problem pointed out by Niko Baric* 16165 16166 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 16167 (sent using the client's version number) if client_version is 16168 smaller than the protocol version in use. Also change 16169 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 16170 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 16171 the client will at least see that alert. 16172 16173 *Bodo Moeller* 16174 16175 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 16176 correctly. 16177 16178 *Bodo Moeller* 16179 16180 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 16181 client receives HelloRequest while in a handshake. 16182 16183 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 16184 16185 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 16186 should end in 'break', not 'goto end' which circumvents various 16187 cleanups done in state SSL_ST_OK. But session related stuff 16188 must be disabled for SSL_ST_OK in the case that we just sent a 16189 HelloRequest. 16190 16191 Also avoid some overhead by not calling ssl_init_wbio_buffer() 16192 before just sending a HelloRequest. 16193 16194 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 16195 16196 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 16197 reveal whether illegal block cipher padding was found or a MAC 16198 verification error occurred. (Neither SSLerr() codes nor alerts 16199 are directly visible to potential attackers, but the information 16200 may leak via logfiles.) 16201 16202 Similar changes are not required for the SSL 2.0 implementation 16203 because the number of padding bytes is sent in clear for SSL 2.0, 16204 and the extra bytes are just ignored. However ssl/s2_pkt.c 16205 failed to verify that the purported number of padding bytes is in 16206 the legal range. 16207 16208 *Bodo Moeller* 16209 16210 * Add OpenUNIX-8 support including shared libraries 16211 (Boyd Lynn Gerber <gerberb@zenez.com>). 16212 16213 *Lutz Jaenicke* 16214 16215 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 16216 'wristwatch attack' using huge encoding parameters (cf. 16217 James H. Manger's CRYPTO 2001 paper). Note that the 16218 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 16219 encoding parameters and hence was not vulnerable. 16220 16221 *Bodo Moeller* 16222 16223 * BN_sqr() bug fix. 16224 16225 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 16226 16227 * Rabin-Miller test analyses assume uniformly distributed witnesses, 16228 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 16229 followed by modular reduction. 16230 16231 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 16232 16233 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 16234 equivalent based on BN_pseudo_rand() instead of BN_rand(). 16235 16236 *Bodo Moeller* 16237 16238 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 16239 This function was broken, as the check for a new client hello message 16240 to handle SGC did not allow these large messages. 16241 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 16242 16243 *Lutz Jaenicke* 16244 16245 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 16246 16247 *Lutz Jaenicke* 16248 16249 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 16250 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 16251 16252 *Lutz Jaenicke* 16253 16254 * Rework the configuration and shared library support for Tru64 Unix. 16255 The configuration part makes use of modern compiler features and 16256 still retains old compiler behavior for those that run older versions 16257 of the OS. The shared library support part includes a variant that 16258 uses the RPATH feature, and is available through the special 16259 configuration target "alpha-cc-rpath", which will never be selected 16260 automatically. 16261 16262 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 16263 16264 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 16265 with the same message size as in ssl3_get_certificate_request(). 16266 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 16267 messages might inadvertently be reject as too long. 16268 16269 *Petr Lampa <lampa@fee.vutbr.cz>* 16270 16271 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 16272 16273 *Andy Polyakov* 16274 16275 * Modified SSL library such that the verify_callback that has been set 16276 specifically for an SSL object with SSL_set_verify() is actually being 16277 used. Before the change, a verify_callback set with this function was 16278 ignored and the verify_callback() set in the SSL_CTX at the time of 16279 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 16280 to allow the necessary settings. 16281 16282 *Lutz Jaenicke* 16283 16284 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 16285 explicitly to NULL, as at least on Solaris 8 this seems not always to be 16286 done automatically (in contradiction to the requirements of the C 16287 standard). This made problems when used from OpenSSH. 16288 16289 *Lutz Jaenicke* 16290 16291 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 16292 dh->length and always used 16293 16294 BN_rand_range(priv_key, dh->p). 16295 16296 BN_rand_range() is not necessary for Diffie-Hellman, and this 16297 specific range makes Diffie-Hellman unnecessarily inefficient if 16298 dh->length (recommended exponent length) is much smaller than the 16299 length of dh->p. We could use BN_rand_range() if the order of 16300 the subgroup was stored in the DH structure, but we only have 16301 dh->length. 16302 16303 So switch back to 16304 16305 BN_rand(priv_key, l, ...) 16306 16307 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 16308 otherwise. 16309 16310 *Bodo Moeller* 16311 16312 * In 16313 16314 RSA_eay_public_encrypt 16315 RSA_eay_private_decrypt 16316 RSA_eay_private_encrypt (signing) 16317 RSA_eay_public_decrypt (signature verification) 16318 16319 (default implementations for RSA_public_encrypt, 16320 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 16321 always reject numbers >= n. 16322 16323 *Bodo Moeller* 16324 16325 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 16326 to synchronize access to 'locking_thread'. This is necessary on 16327 systems where access to 'locking_thread' (an 'unsigned long' 16328 variable) is not atomic. 16329 16330 *Bodo Moeller* 16331 16332 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 16333 *before* setting the 'crypto_lock_rand' flag. The previous code had 16334 a race condition if 0 is a valid thread ID. 16335 16336 *Travis Vitek <vitek@roguewave.com>* 16337 16338 * Add support for shared libraries under Irix. 16339 16340 *Albert Chin-A-Young <china@thewrittenword.com>* 16341 16342 * Add configuration option to build on Linux on both big-endian and 16343 little-endian MIPS. 16344 16345 *Ralf Baechle <ralf@uni-koblenz.de>* 16346 16347 * Add the possibility to create shared libraries on HP-UX. 16348 16349 *Richard Levitte* 16350 16351### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 16352 16353 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 16354 to avoid an SSLeay/OpenSSL PRNG weakness pointed out by 16355 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 16356 PRNG state recovery was possible based on the output of 16357 one PRNG request appropriately sized to gain knowledge on 16358 'md' followed by enough consecutive 1-byte PRNG requests 16359 to traverse all of 'state'. 16360 16361 1. When updating 'md_local' (the current thread's copy of 'md') 16362 during PRNG output generation, hash all of the previous 16363 'md_local' value, not just the half used for PRNG output. 16364 16365 2. Make the number of bytes from 'state' included into the hash 16366 independent from the number of PRNG bytes requested. 16367 16368 The first measure alone would be sufficient to avoid 16369 Markku-Juhani's attack. (Actually it had never occurred 16370 to me that the half of 'md_local' used for chaining was the 16371 half from which PRNG output bytes were taken -- I had always 16372 assumed that the secret half would be used.) The second 16373 measure makes sure that additional data from 'state' is never 16374 mixed into 'md_local' in small portions; this heuristically 16375 further strengthens the PRNG. 16376 16377 *Bodo Moeller* 16378 16379 * Fix crypto/bn/asm/mips3.s. 16380 16381 *Andy Polyakov* 16382 16383 * When only the key is given to "enc", the IV is undefined. Print out 16384 an error message in this case. 16385 16386 *Lutz Jaenicke* 16387 16388 * Handle special case when X509_NAME is empty in X509 printing routines. 16389 16390 *Steve Henson* 16391 16392 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 16393 positive and less than q. 16394 16395 *Bodo Moeller* 16396 16397 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 16398 used: it isn't thread safe and the add_lock_callback should handle 16399 that itself. 16400 16401 *Paul Rose <Paul.Rose@bridge.com>* 16402 16403 * Verify that incoming data obeys the block size in 16404 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 16405 16406 *Bodo Moeller* 16407 16408 * Fix OAEP check. 16409 16410 *Ulf Möller, Bodo Möller* 16411 16412 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 16413 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 16414 when fixing the server behaviour for backwards-compatible 'client 16415 hello' messages. (Note that the attack is impractical against 16416 SSL 3.0 and TLS 1.0 anyway because length and version checking 16417 means that the probability of guessing a valid ciphertext is 16418 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 16419 paper.) 16420 16421 Before 0.9.5, the countermeasure (hide the error by generating a 16422 random 'decryption result') did not work properly because 16423 ERR_clear_error() was missing, meaning that SSL_get_error() would 16424 detect the supposedly ignored error. 16425 16426 Both problems are now fixed. 16427 16428 *Bodo Moeller* 16429 16430 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 16431 (previously it was 1024). 16432 16433 *Bodo Moeller* 16434 16435 * Fix for compatibility mode trust settings: ignore trust settings 16436 unless some valid trust or reject settings are present. 16437 16438 *Steve Henson* 16439 16440 * Fix for blowfish EVP: its a variable length cipher. 16441 16442 *Steve Henson* 16443 16444 * Fix various bugs related to DSA S/MIME verification. Handle missing 16445 parameters in DSA public key structures and return an error in the 16446 DSA routines if parameters are absent. 16447 16448 *Steve Henson* 16449 16450 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 16451 in the current directory if neither $RANDFILE nor $HOME was set. 16452 RAND_file_name() in 0.9.6a returned NULL in this case. This has 16453 caused some confusion to Windows users who haven't defined $HOME. 16454 Thus RAND_file_name() is changed again: e_os.h can define a 16455 DEFAULT_HOME, which will be used if $HOME is not set. 16456 For Windows, we use "C:"; on other platforms, we still require 16457 environment variables. 16458 16459 * Move 'if (!initialized) RAND_poll()' into regions protected by 16460 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 16461 having multiple threads call RAND_poll() concurrently. 16462 16463 *Bodo Moeller* 16464 16465 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 16466 combination of a flag and a thread ID variable. 16467 Otherwise while one thread is in ssleay_rand_bytes (which sets the 16468 flag), *other* threads can enter ssleay_add_bytes without obeying 16469 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 16470 that they do not hold after the first thread unsets add_do_not_lock). 16471 16472 *Bodo Moeller* 16473 16474 * Change bctest again: '-x' expressions are not available in all 16475 versions of 'test'. 16476 16477 *Bodo Moeller* 16478 16479### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 16480 16481 * Fix a couple of memory leaks in PKCS7_dataDecode() 16482 16483 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 16484 16485 * Change Configure and Makefiles to provide EXE_EXT, which will contain 16486 the default extension for executables, if any. Also, make the perl 16487 scripts that use symlink() to test if it really exists and use "cp" 16488 if it doesn't. All this made OpenSSL compilable and installable in 16489 CygWin. 16490 16491 *Richard Levitte* 16492 16493 * Fix for asn1_GetSequence() for indefinite length constructed data. 16494 If SEQUENCE is length is indefinite just set c->slen to the total 16495 amount of data available. 16496 16497 *Steve Henson, reported by shige@FreeBSD.org* 16498 16499 *This change does not apply to 0.9.7.* 16500 16501 * Change bctest to avoid here-documents inside command substitution 16502 (workaround for FreeBSD /bin/sh bug). 16503 For compatibility with Ultrix, avoid shell functions (introduced 16504 in the bctest version that searches along $PATH). 16505 16506 *Bodo Moeller* 16507 16508 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 16509 with des_encrypt() defined on some operating systems, like Solaris 16510 and UnixWare. 16511 16512 *Richard Levitte* 16513 16514 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 16515 On the Importance of Eliminating Errors in Cryptographic 16516 Computations, J. Cryptology 14 (2001) 2, 101-119, 16517 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 16518 16519 *Ulf Moeller* 16520 16521 * MIPS assembler BIGNUM division bug fix. 16522 16523 *Andy Polyakov* 16524 16525 * Disabled incorrect Alpha assembler code. 16526 16527 *Richard Levitte* 16528 16529 * Fix PKCS#7 decode routines so they correctly update the length 16530 after reading an EOC for the EXPLICIT tag. 16531 16532 *Steve Henson* 16533 16534 *This change does not apply to 0.9.7.* 16535 16536 * Fix bug in PKCS#12 key generation routines. This was triggered 16537 if a 3DES key was generated with a 0 initial byte. Include 16538 PKCS12_BROKEN_KEYGEN compilation option to retain the old 16539 (but broken) behaviour. 16540 16541 *Steve Henson* 16542 16543 * Enhance bctest to search for a working bc along $PATH and print 16544 it when found. 16545 16546 *Tim Rice <tim@multitalents.net> via Richard Levitte* 16547 16548 * Fix memory leaks in err.c: free err_data string if necessary; 16549 don't write to the wrong index in ERR_set_error_data. 16550 16551 *Bodo Moeller* 16552 16553 * Implement ssl23_peek (analogous to ssl23_read), which previously 16554 did not exist. 16555 16556 *Bodo Moeller* 16557 16558 * Replace rdtsc with `_emit` statements for VC++ version 5. 16559 16560 *Jeremy Cooper <jeremy@baymoo.org>* 16561 16562 * Make it possible to reuse SSLv2 sessions. 16563 16564 *Richard Levitte* 16565 16566 * In copy_email() check for >= 0 as a return value for 16567 X509_NAME_get_index_by_NID() since 0 is a valid index. 16568 16569 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 16570 16571 * Avoid coredump with unsupported or invalid public keys by checking if 16572 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 16573 PKCS7_verify() fails with non detached data. 16574 16575 *Steve Henson* 16576 16577 * Don't use getenv in library functions when run as setuid/setgid. 16578 New function OPENSSL_issetugid(). 16579 16580 *Ulf Moeller* 16581 16582 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 16583 due to incorrect handling of multi-threading: 16584 16585 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 16586 16587 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 16588 16589 3. Count how many times MemCheck_off() has been called so that 16590 nested use can be treated correctly. This also avoids 16591 inband-signalling in the previous code (which relied on the 16592 assumption that thread ID 0 is impossible). 16593 16594 *Bodo Moeller* 16595 16596 * Add "-rand" option also to s_client and s_server. 16597 16598 *Lutz Jaenicke* 16599 16600 * Fix CPU detection on Irix 6.x. 16601 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 16602 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 16603 16604 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 16605 was empty. 16606 16607 *Steve Henson* 16608 16609 *This change does not apply to 0.9.7.* 16610 16611 * Use the cached encoding of an X509_NAME structure rather than 16612 copying it. This is apparently the reason for the libsafe "errors" 16613 but the code is actually correct. 16614 16615 *Steve Henson* 16616 16617 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 16618 Bleichenbacher's DSA attack. 16619 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 16620 to be set and top=0 forces the highest bit to be set; top=-1 is new 16621 and leaves the highest bit random. 16622 16623 *Ulf Moeller, Bodo Moeller* 16624 16625 * In the `NCONF_...`-based implementations for `CONF_...` queries 16626 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 16627 a temporary CONF structure with the data component set to NULL 16628 (which gives segmentation faults in lh_retrieve). 16629 Instead, use NULL for the CONF pointer in CONF_get_string and 16630 CONF_get_number (which may use environment variables) and directly 16631 return NULL from CONF_get_section. 16632 16633 *Bodo Moeller* 16634 16635 * Fix potential buffer overrun for EBCDIC. 16636 16637 *Ulf Moeller* 16638 16639 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 16640 keyUsage if basicConstraints absent for a CA. 16641 16642 *Steve Henson* 16643 16644 * Make SMIME_write_PKCS7() write mail header values with a format that 16645 is more generally accepted (no spaces before the semicolon), since 16646 some programs can't parse those values properly otherwise. Also make 16647 sure BIO's that break lines after each write do not create invalid 16648 headers. 16649 16650 *Richard Levitte* 16651 16652 * Make the CRL encoding routines work with empty SEQUENCE OF. The 16653 macros previously used would not encode an empty SEQUENCE OF 16654 and break the signature. 16655 16656 *Steve Henson* 16657 16658 *This change does not apply to 0.9.7.* 16659 16660 * Zero the premaster secret after deriving the master secret in 16661 DH ciphersuites. 16662 16663 *Steve Henson* 16664 16665 * Add some EVP_add_digest_alias registrations (as found in 16666 OpenSSL_add_all_digests()) to SSL_library_init() 16667 aka OpenSSL_add_ssl_algorithms(). This provides improved 16668 compatibility with peers using X.509 certificates 16669 with unconventional AlgorithmIdentifier OIDs. 16670 16671 *Bodo Moeller* 16672 16673 * Fix for Irix with NO_ASM. 16674 16675 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 16676 16677 * ./config script fixes. 16678 16679 *Ulf Moeller, Richard Levitte* 16680 16681 * Fix 'openssl passwd -1'. 16682 16683 *Bodo Moeller* 16684 16685 * Change PKCS12_key_gen_asc() so it can cope with non null 16686 terminated strings whose length is passed in the passlen 16687 parameter, for example from PEM callbacks. This was done 16688 by adding an extra length parameter to asc2uni(). 16689 16690 *Steve Henson, reported by <oddissey@samsung.co.kr>* 16691 16692 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 16693 call failed, free the DSA structure. 16694 16695 *Bodo Moeller* 16696 16697 * Fix to uni2asc() to cope with zero length Unicode strings. 16698 These are present in some PKCS#12 files. 16699 16700 *Steve Henson* 16701 16702 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 16703 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 16704 when writing a 32767 byte record. 16705 16706 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 16707 16708 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 16709 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 16710 16711 (RSA objects have a reference count access to which is protected 16712 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 16713 so they are meant to be shared between threads.) 16714 *Bodo Moeller, Geoff Thorpe; original patch submitted by 16715 "Reddie, Steven" <Steven.Reddie@ca.com>* 16716 16717 * Fix a deadlock in CRYPTO_mem_leaks(). 16718 16719 *Bodo Moeller* 16720 16721 * Use better test patterns in bntest. 16722 16723 *Ulf Möller* 16724 16725 * rand_win.c fix for Borland C. 16726 16727 *Ulf Möller* 16728 16729 * BN_rshift bugfix for n == 0. 16730 16731 *Bodo Moeller* 16732 16733 * Add a 'bctest' script that checks for some known 'bc' bugs 16734 so that 'make test' does not abort just because 'bc' is broken. 16735 16736 *Bodo Moeller* 16737 16738 * Store verify_result within SSL_SESSION also for client side to 16739 avoid potential security hole. (Reused sessions on the client side 16740 always resulted in verify_result==X509_V_OK, not using the original 16741 result of the server certificate verification.) 16742 16743 *Lutz Jaenicke* 16744 16745 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 16746 SSL3_RT_APPLICATION_DATA, return 0. 16747 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 16748 16749 *Bodo Moeller* 16750 16751 * Fix SSL_peek: 16752 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 16753 releases, have been re-implemented by renaming the previous 16754 implementations of ssl2_read and ssl3_read to ssl2_read_internal 16755 and ssl3_read_internal, respectively, and adding 'peek' parameters 16756 to them. The new ssl[23]_{read,peek} functions are calls to 16757 ssl[23]_read_internal with the 'peek' flag set appropriately. 16758 A 'peek' parameter has also been added to ssl3_read_bytes, which 16759 does the actual work for ssl3_read_internal. 16760 16761 *Bodo Moeller* 16762 16763 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 16764 the method-specific "init()" handler. Also clean up ex_data after 16765 calling the method-specific "finish()" handler. Previously, this was 16766 happening the other way round. 16767 16768 *Geoff Thorpe* 16769 16770 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 16771 The previous value, 12, was not always sufficient for BN_mod_exp(). 16772 16773 *Bodo Moeller* 16774 16775 * Make sure that shared libraries get the internal name engine with 16776 the full version number and not just 0. This should mark the 16777 shared libraries as not backward compatible. Of course, this should 16778 be changed again when we can guarantee backward binary compatibility. 16779 16780 *Richard Levitte* 16781 16782 * Fix typo in get_cert_by_subject() in by_dir.c 16783 16784 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 16785 16786 * Rework the system to generate shared libraries: 16787 16788 - Make note of the expected extension for the shared libraries and 16789 if there is a need for symbolic links from for example libcrypto.so.0 16790 to libcrypto.so.0.9.7. There is extended info in Configure for 16791 that. 16792 16793 - Make as few rebuilds of the shared libraries as possible. 16794 16795 - Still avoid linking the OpenSSL programs with the shared libraries. 16796 16797 - When installing, install the shared libraries separately from the 16798 static ones. 16799 16800 *Richard Levitte* 16801 16802 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 16803 16804 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 16805 and not in SSL_clear because the latter is also used by the 16806 accept/connect functions; previously, the settings made by 16807 SSL_set_read_ahead would be lost during the handshake. 16808 16809 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 16810 16811 * Correct util/mkdef.pl to be selective about disabled algorithms. 16812 Previously, it would create entries for disabled algorithms no 16813 matter what. 16814 16815 *Richard Levitte* 16816 16817 * Added several new manual pages for SSL_* function. 16818 16819 *Lutz Jaenicke* 16820 16821### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 16822 16823 * In ssl23_get_client_hello, generate an error message when faced 16824 with an initial SSL 3.0/TLS record that is too small to contain the 16825 first two bytes of the ClientHello message, i.e. client_version. 16826 (Note that this is a pathologic case that probably has never happened 16827 in real life.) The previous approach was to use the version number 16828 from the record header as a substitute; but our protocol choice 16829 should not depend on that one because it is not authenticated 16830 by the Finished messages. 16831 16832 *Bodo Moeller* 16833 16834 * More robust randomness gathering functions for Windows. 16835 16836 *Jeffrey Altman <jaltman@columbia.edu>* 16837 16838 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 16839 not set then we don't setup the error code for issuer check errors 16840 to avoid possibly overwriting other errors which the callback does 16841 handle. If an application does set the flag then we assume it knows 16842 what it is doing and can handle the new informational codes 16843 appropriately. 16844 16845 *Steve Henson* 16846 16847 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 16848 a general "ANY" type, as such it should be able to decode anything 16849 including tagged types. However it didn't check the class so it would 16850 wrongly interpret tagged types in the same way as their universal 16851 counterpart and unknown types were just rejected. Changed so that the 16852 tagged and unknown types are handled in the same way as a SEQUENCE: 16853 that is the encoding is stored intact. There is also a new type 16854 "V_ASN1_OTHER" which is used when the class is not universal, in this 16855 case we have no idea what the actual type is so we just lump them all 16856 together. 16857 16858 *Steve Henson* 16859 16860 * On VMS, stdout may very well lead to a file that is written to 16861 in a record-oriented fashion. That means that every write() will 16862 write a separate record, which will be read separately by the 16863 programs trying to read from it. This can be very confusing. 16864 16865 The solution is to put a BIO filter in the way that will buffer 16866 text until a linefeed is reached, and then write everything a 16867 line at a time, so every record written will be an actual line, 16868 not chunks of lines and not (usually doesn't happen, but I've 16869 seen it once) several lines in one record. BIO_f_linebuffer() is 16870 the answer. 16871 16872 Currently, it's a VMS-only method, because that's where it has 16873 been tested well enough. 16874 16875 *Richard Levitte* 16876 16877 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 16878 it can return incorrect results. 16879 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 16880 but it was in 0.9.6-beta[12].) 16881 16882 *Bodo Moeller* 16883 16884 * Disable the check for content being present when verifying detached 16885 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 16886 include zero length content when signing messages. 16887 16888 *Steve Henson* 16889 16890 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 16891 BIO_ctrl (for BIO pairs). 16892 16893 *Bodo Möller* 16894 16895 * Add DSO method for VMS. 16896 16897 *Richard Levitte* 16898 16899 * Bug fix: Montgomery multiplication could produce results with the 16900 wrong sign. 16901 16902 *Ulf Möller* 16903 16904 * Add RPM specification openssl.spec and modify it to build three 16905 packages. The default package contains applications, application 16906 documentation and run-time libraries. The devel package contains 16907 include files, static libraries and function documentation. The 16908 doc package contains the contents of the doc directory. The original 16909 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 16910 16911 *Richard Levitte* 16912 16913 * Add a large number of documentation files for many SSL routines. 16914 16915 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 16916 16917 * Add a configuration entry for Sony News 4. 16918 16919 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 16920 16921 * Don't set the two most significant bits to one when generating a 16922 random number < q in the DSA library. 16923 16924 *Ulf Möller* 16925 16926 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 16927 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 16928 the underlying transport is blocking) if a handshake took place. 16929 (The default behaviour is needed by applications such as s_client 16930 and s_server that use select() to determine when to use SSL_read; 16931 but for applications that know in advance when to expect data, it 16932 just makes things more complicated.) 16933 16934 *Bodo Moeller* 16935 16936 * Add RAND_egd_bytes(), which gives control over the number of bytes read 16937 from EGD. 16938 16939 *Ben Laurie* 16940 16941 * Add a few more EBCDIC conditionals that make `req` and `x509` 16942 work better on such systems. 16943 16944 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 16945 16946 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 16947 Update PKCS12_parse() so it copies the friendlyName and the 16948 keyid to the certificates aux info. 16949 16950 *Steve Henson* 16951 16952 * Fix bug in PKCS7_verify() which caused an infinite loop 16953 if there was more than one signature. 16954 16955 *Sven Uszpelkat <su@celocom.de>* 16956 16957 * Major change in util/mkdef.pl to include extra information 16958 about each symbol, as well as presenting variables as well 16959 as functions. This change means that there's n more need 16960 to rebuild the .num files when some algorithms are excluded. 16961 16962 *Richard Levitte* 16963 16964 * Allow the verify time to be set by an application, 16965 rather than always using the current time. 16966 16967 *Steve Henson* 16968 16969 * Phase 2 verify code reorganisation. The certificate 16970 verify code now looks up an issuer certificate by a 16971 number of criteria: subject name, authority key id 16972 and key usage. It also verifies self signed certificates 16973 by the same criteria. The main comparison function is 16974 X509_check_issued() which performs these checks. 16975 16976 Lot of changes were necessary in order to support this 16977 without completely rewriting the lookup code. 16978 16979 Authority and subject key identifier are now cached. 16980 16981 The LHASH 'certs' is X509_STORE has now been replaced 16982 by a STACK_OF(X509_OBJECT). This is mainly because an 16983 LHASH can't store or retrieve multiple objects with 16984 the same hash value. 16985 16986 As a result various functions (which were all internal 16987 use only) have changed to handle the new X509_STORE 16988 structure. This will break anything that messed round 16989 with X509_STORE internally. 16990 16991 The functions X509_STORE_add_cert() now checks for an 16992 exact match, rather than just subject name. 16993 16994 The X509_STORE API doesn't directly support the retrieval 16995 of multiple certificates matching a given criteria, however 16996 this can be worked round by performing a lookup first 16997 (which will fill the cache with candidate certificates) 16998 and then examining the cache for matches. This is probably 16999 the best we can do without throwing out X509_LOOKUP 17000 entirely (maybe later...). 17001 17002 The X509_VERIFY_CTX structure has been enhanced considerably. 17003 17004 All certificate lookup operations now go via a get_issuer() 17005 callback. Although this currently uses an X509_STORE it 17006 can be replaced by custom lookups. This is a simple way 17007 to bypass the X509_STORE hackery necessary to make this 17008 work and makes it possible to use more efficient techniques 17009 in future. A very simple version which uses a simple 17010 STACK for its trusted certificate store is also provided 17011 using X509_STORE_CTX_trusted_stack(). 17012 17013 The verify_cb() and verify() callbacks now have equivalents 17014 in the X509_STORE_CTX structure. 17015 17016 X509_STORE_CTX also has a 'flags' field which can be used 17017 to customise the verify behaviour. 17018 17019 *Steve Henson* 17020 17021 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 17022 excludes S/MIME capabilities. 17023 17024 *Steve Henson* 17025 17026 * When a certificate request is read in keep a copy of the 17027 original encoding of the signed data and use it when outputting 17028 again. Signatures then use the original encoding rather than 17029 a decoded, encoded version which may cause problems if the 17030 request is improperly encoded. 17031 17032 *Steve Henson* 17033 17034 * For consistency with other BIO_puts implementations, call 17035 buffer_write(b, ...) directly in buffer_puts instead of calling 17036 BIO_write(b, ...). 17037 17038 In BIO_puts, increment b->num_write as in BIO_write. 17039 17040 *Peter.Sylvester@EdelWeb.fr* 17041 17042 * Fix BN_mul_word for the case where the word is 0. (We have to use 17043 BN_zero, we may not return a BIGNUM with an array consisting of 17044 words set to zero.) 17045 17046 *Bodo Moeller* 17047 17048 * Avoid calling abort() from within the library when problems are 17049 detected, except if preprocessor symbols have been defined 17050 (such as REF_CHECK, BN_DEBUG etc.). 17051 17052 *Bodo Moeller* 17053 17054 * New openssl application 'rsautl'. This utility can be 17055 used for low-level RSA operations. DER public key 17056 BIO/fp routines also added. 17057 17058 *Steve Henson* 17059 17060 * New Configure entry and patches for compiling on QNX 4. 17061 17062 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 17063 17064 * A demo state-machine implementation was sponsored by 17065 Nuron (<http://www.nuron.com/>) and is now available in 17066 demos/state_machine. 17067 17068 *Ben Laurie* 17069 17070 * New options added to the 'dgst' utility for signature 17071 generation and verification. 17072 17073 *Steve Henson* 17074 17075 * Unrecognized PKCS#7 content types are now handled via a 17076 catch all ASN1_TYPE structure. This allows unsupported 17077 types to be stored as a "blob" and an application can 17078 encode and decode it manually. 17079 17080 *Steve Henson* 17081 17082 * Fix various signed/unsigned issues to make a_strex.c 17083 compile under VC++. 17084 17085 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 17086 17087 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 17088 length if passed a buffer. ASN1_INTEGER_to_BN failed 17089 if passed a NULL BN and its argument was negative. 17090 17091 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 17092 17093 * Modification to PKCS#7 encoding routines to output definite 17094 length encoding. Since currently the whole structures are in 17095 memory there's not real point in using indefinite length 17096 constructed encoding. However if OpenSSL is compiled with 17097 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 17098 17099 *Steve Henson* 17100 17101 * Added BIO_vprintf() and BIO_vsnprintf(). 17102 17103 *Richard Levitte* 17104 17105 * Added more prefixes to parse for in the strings written 17106 through a logging bio, to cover all the levels that are available 17107 through syslog. The prefixes are now: 17108 17109 PANIC, EMERG, EMR => LOG_EMERG 17110 ALERT, ALR => LOG_ALERT 17111 CRIT, CRI => LOG_CRIT 17112 ERROR, ERR => LOG_ERR 17113 WARNING, WARN, WAR => LOG_WARNING 17114 NOTICE, NOTE, NOT => LOG_NOTICE 17115 INFO, INF => LOG_INFO 17116 DEBUG, DBG => LOG_DEBUG 17117 17118 and as before, if none of those prefixes are present at the 17119 beginning of the string, LOG_ERR is chosen. 17120 17121 On Win32, the `LOG_*` levels are mapped according to this: 17122 17123 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 17124 LOG_WARNING => EVENTLOG_WARNING_TYPE 17125 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 17126 17127 *Richard Levitte* 17128 17129 * Made it possible to reconfigure with just the configuration 17130 argument "reconf" or "reconfigure". The command line arguments 17131 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 17132 and are retrieved from there when reconfiguring. 17133 17134 *Richard Levitte* 17135 17136 * MD4 implemented. 17137 17138 *Assar Westerlund <assar@sics.se>, Richard Levitte* 17139 17140 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 17141 17142 *Richard Levitte* 17143 17144 * The obj_dat.pl script was messing up the sorting of object 17145 names. The reason was that it compared the quoted version 17146 of strings as a result "OCSP" > "OCSP Signing" because 17147 " > SPACE. Changed script to store unquoted versions of 17148 names and add quotes on output. It was also omitting some 17149 names from the lookup table if they were given a default 17150 value (that is if SN is missing it is given the same 17151 value as LN and vice versa), these are now added on the 17152 grounds that if an object has a name we should be able to 17153 look it up. Finally added warning output when duplicate 17154 short or long names are found. 17155 17156 *Steve Henson* 17157 17158 * Changes needed for Tandem NSK. 17159 17160 *Scott Uroff <scott@xypro.com>* 17161 17162 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 17163 RSA_padding_check_SSLv23(), special padding was never detected 17164 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 17165 version rollback attacks was not effective. 17166 17167 In s23_clnt.c, don't use special rollback-attack detection padding 17168 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 17169 client; similarly, in s23_srvr.c, don't do the rollback check if 17170 SSL 2.0 is the only protocol enabled in the server. 17171 17172 *Bodo Moeller* 17173 17174 * Make it possible to get hexdumps of unprintable data with 'openssl 17175 asn1parse'. By implication, the functions ASN1_parse_dump() and 17176 BIO_dump_indent() are added. 17177 17178 *Richard Levitte* 17179 17180 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 17181 these print out strings and name structures based on various 17182 flags including RFC2253 support and proper handling of 17183 multibyte characters. Added options to the 'x509' utility 17184 to allow the various flags to be set. 17185 17186 *Steve Henson* 17187 17188 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 17189 Also change the functions X509_cmp_current_time() and 17190 X509_gmtime_adj() work with an ASN1_TIME structure, 17191 this will enable certificates using GeneralizedTime in validity 17192 dates to be checked. 17193 17194 *Steve Henson* 17195 17196 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 17197 negative public key encodings) on by default, 17198 NO_NEG_PUBKEY_BUG can be set to disable it. 17199 17200 *Steve Henson* 17201 17202 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 17203 content octets. An i2c_ASN1_OBJECT is unnecessary because 17204 the encoding can be trivially obtained from the structure. 17205 17206 *Steve Henson* 17207 17208 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 17209 not read locks (`CRYPTO_r_[un]lock`). 17210 17211 *Bodo Moeller* 17212 17213 * A first attempt at creating official support for shared 17214 libraries through configuration. I've kept it so the 17215 default is static libraries only, and the OpenSSL programs 17216 are always statically linked for now, but there are 17217 preparations for dynamic linking in place. 17218 This has been tested on Linux and Tru64. 17219 17220 *Richard Levitte* 17221 17222 * Randomness polling function for Win9x, as described in: 17223 Peter Gutmann, Software Generation of Practically Strong 17224 Random Numbers. 17225 17226 *Ulf Möller* 17227 17228 * Fix so PRNG is seeded in req if using an already existing 17229 DSA key. 17230 17231 *Steve Henson* 17232 17233 * New options to smime application. -inform and -outform 17234 allow alternative formats for the S/MIME message including 17235 PEM and DER. The -content option allows the content to be 17236 specified separately. This should allow things like Netscape 17237 form signing output easier to verify. 17238 17239 *Steve Henson* 17240 17241 * Fix the ASN1 encoding of tags using the 'long form'. 17242 17243 *Steve Henson* 17244 17245 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 17246 STRING types. These convert content octets to and from the 17247 underlying type. The actual tag and length octets are 17248 already assumed to have been read in and checked. These 17249 are needed because all other string types have virtually 17250 identical handling apart from the tag. By having versions 17251 of the ASN1 functions that just operate on content octets 17252 IMPLICIT tagging can be handled properly. It also allows 17253 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 17254 and ASN1_INTEGER are identical apart from the tag. 17255 17256 *Steve Henson* 17257 17258 * Change the handling of OID objects as follows: 17259 17260 - New object identifiers are inserted in objects.txt, following 17261 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 17262 - objects.pl is used to process obj_mac.num and create a new 17263 obj_mac.h. 17264 - obj_dat.pl is used to create a new obj_dat.h, using the data in 17265 obj_mac.h. 17266 17267 This is currently kind of a hack, and the perl code in objects.pl 17268 isn't very elegant, but it works as I intended. The simplest way 17269 to check that it worked correctly is to look in obj_dat.h and 17270 check the array nid_objs and make sure the objects haven't moved 17271 around (this is important!). Additions are OK, as well as 17272 consistent name changes. 17273 17274 *Richard Levitte* 17275 17276 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 17277 17278 *Bodo Moeller* 17279 17280 * Addition of the command line parameter '-rand file' to 'openssl req'. 17281 The given file adds to whatever has already been seeded into the 17282 random pool through the RANDFILE configuration file option or 17283 environment variable, or the default random state file. 17284 17285 *Richard Levitte* 17286 17287 * mkstack.pl now sorts each macro group into lexical order. 17288 Previously the output order depended on the order the files 17289 appeared in the directory, resulting in needless rewriting 17290 of safestack.h . 17291 17292 *Steve Henson* 17293 17294 * Patches to make OpenSSL compile under Win32 again. Mostly 17295 work arounds for the VC++ problem that it treats func() as 17296 func(void). Also stripped out the parts of mkdef.pl that 17297 added extra typesafe functions: these no longer exist. 17298 17299 *Steve Henson* 17300 17301 * Reorganisation of the stack code. The macros are now all 17302 collected in safestack.h . Each macro is defined in terms of 17303 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 17304 DEBUG_SAFESTACK is now handled in terms of function casts, 17305 this has the advantage of retaining type safety without the 17306 use of additional functions. If DEBUG_SAFESTACK is not defined 17307 then the non typesafe macros are used instead. Also modified the 17308 mkstack.pl script to handle the new form. Needs testing to see 17309 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 17310 the default if no major problems. Similar behaviour for ASN1_SET_OF 17311 and PKCS12_STACK_OF. 17312 17313 *Steve Henson* 17314 17315 * When some versions of IIS use the 'NET' form of private key the 17316 key derivation algorithm is different. Normally MD5(password) is 17317 used as a 128 bit RC4 key. In the modified case 17318 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 17319 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 17320 as the old Netscape_RSA functions except they have an additional 17321 'sgckey' parameter which uses the modified algorithm. Also added 17322 an -sgckey command line option to the rsa utility. Thanks to 17323 Adrian Peck <bertie@ncipher.com> for posting details of the modified 17324 algorithm to openssl-dev. 17325 17326 *Steve Henson* 17327 17328 * The evp_local.h macros were using 'c.##kname' which resulted in 17329 invalid expansion on some systems (SCO 5.0.5 for example). 17330 Corrected to 'c.kname'. 17331 17332 *Phillip Porch <root@theporch.com>* 17333 17334 * New X509_get1_email() and X509_REQ_get1_email() functions that return 17335 a STACK of email addresses from a certificate or request, these look 17336 in the subject name and the subject alternative name extensions and 17337 omit any duplicate addresses. 17338 17339 *Steve Henson* 17340 17341 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 17342 This makes DSA verification about 2 % faster. 17343 17344 *Bodo Moeller* 17345 17346 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 17347 (meaning that now 2^5 values will be precomputed, which is only 4 KB 17348 plus overhead for 1024 bit moduli). 17349 This makes exponentiations about 0.5 % faster for 1024 bit 17350 exponents (as measured by "openssl speed rsa2048"). 17351 17352 *Bodo Moeller* 17353 17354 * Rename memory handling macros to avoid conflicts with other 17355 software: 17356 Malloc => OPENSSL_malloc 17357 Malloc_locked => OPENSSL_malloc_locked 17358 Realloc => OPENSSL_realloc 17359 Free => OPENSSL_free 17360 17361 *Richard Levitte* 17362 17363 * New function BN_mod_exp_mont_word for small bases (roughly 15% 17364 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 17365 17366 *Bodo Moeller* 17367 17368 * CygWin32 support. 17369 17370 *John Jarvie <jjarvie@newsguy.com>* 17371 17372 * The type-safe stack code has been rejigged. It is now only compiled 17373 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 17374 by default all type-specific stack functions are "#define"d back to 17375 standard stack functions. This results in more streamlined output 17376 but retains the type-safety checking possibilities of the original 17377 approach. 17378 17379 *Geoff Thorpe* 17380 17381 * The STACK code has been cleaned up, and certain type declarations 17382 that didn't make a lot of sense have been brought in line. This has 17383 also involved a cleanup of sorts in safestack.h to more correctly 17384 map type-safe stack functions onto their plain stack counterparts. 17385 This work has also resulted in a variety of "const"ifications of 17386 lots of the code, especially `_cmp` operations which should normally 17387 be prototyped with "const" parameters anyway. 17388 17389 *Geoff Thorpe* 17390 17391 * When generating bytes for the first time in md_rand.c, 'stir the pool' 17392 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 17393 (The PRNG state consists of two parts, the large pool 'state' and 'md', 17394 where all of 'md' is used each time the PRNG is used, but 'state' 17395 is used only indexed by a cyclic counter. As entropy may not be 17396 well distributed from the beginning, 'md' is important as a 17397 chaining variable. However, the output function chains only half 17398 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 17399 all of 'md', and seeding with STATE_SIZE dummy bytes will result 17400 in all of 'state' being rewritten, with the new values depending 17401 on virtually all of 'md'. This overcomes the 80 bit limitation.) 17402 17403 *Bodo Moeller* 17404 17405 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 17406 the handshake is continued after ssl_verify_cert_chain(); 17407 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 17408 can lead to 'unexplainable' connection aborts later. 17409 17410 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 17411 17412 * Major EVP API cipher revision. 17413 Add hooks for extra EVP features. This allows various cipher 17414 parameters to be set in the EVP interface. Support added for variable 17415 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 17416 setting of RC2 and RC5 parameters. 17417 17418 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 17419 ciphers. 17420 17421 Remove lots of duplicated code from the EVP library. For example *every* 17422 cipher init() function handles the 'iv' in the same way according to the 17423 cipher mode. They also all do nothing if the 'key' parameter is NULL and 17424 for CFB and OFB modes they zero ctx->num. 17425 17426 New functionality allows removal of S/MIME code RC2 hack. 17427 17428 Most of the routines have the same form and so can be declared in terms 17429 of macros. 17430 17431 By shifting this to the top level EVP_CipherInit() it can be removed from 17432 all individual ciphers. If the cipher wants to handle IVs or keys 17433 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 17434 flags. 17435 17436 Change lots of functions like EVP_EncryptUpdate() to now return a 17437 value: although software versions of the algorithms cannot fail 17438 any installed hardware versions can. 17439 17440 *Steve Henson* 17441 17442 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 17443 this option is set, tolerate broken clients that send the negotiated 17444 protocol version number instead of the requested protocol version 17445 number. 17446 17447 *Bodo Moeller* 17448 17449 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 17450 i.e. non-zero for export ciphersuites, zero otherwise. 17451 Previous versions had this flag inverted, inconsistent with 17452 rsa_tmp_cb (..._TMP_RSA_CB). 17453 17454 *Bodo Moeller; problem reported by Amit Chopra* 17455 17456 * Add missing DSA library text string. Work around for some IIS 17457 key files with invalid SEQUENCE encoding. 17458 17459 *Steve Henson* 17460 17461 * Add a document (doc/standards.txt) that list all kinds of standards 17462 and so on that are implemented in OpenSSL. 17463 17464 *Richard Levitte* 17465 17466 * Enhance c_rehash script. Old version would mishandle certificates 17467 with the same subject name hash and wouldn't handle CRLs at all. 17468 Added -fingerprint option to crl utility, to support new c_rehash 17469 features. 17470 17471 *Steve Henson* 17472 17473 * Eliminate non-ANSI declarations in crypto.h and stack.h. 17474 17475 *Ulf Möller* 17476 17477 * Fix for SSL server purpose checking. Server checking was 17478 rejecting certificates which had extended key usage present 17479 but no ssl client purpose. 17480 17481 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 17482 17483 * Make PKCS#12 code work with no password. The PKCS#12 spec 17484 is a little unclear about how a blank password is handled. 17485 Since the password in encoded as a BMPString with terminating 17486 double NULL a zero length password would end up as just the 17487 double NULL. However no password at all is different and is 17488 handled differently in the PKCS#12 key generation code. NS 17489 treats a blank password as zero length. MSIE treats it as no 17490 password on export: but it will try both on import. We now do 17491 the same: PKCS12_parse() tries zero length and no password if 17492 the password is set to "" or NULL (NULL is now a valid password: 17493 it wasn't before) as does the pkcs12 application. 17494 17495 *Steve Henson* 17496 17497 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 17498 perror when PEM_read_bio_X509_REQ fails, the error message must 17499 be obtained from the error queue. 17500 17501 *Bodo Moeller* 17502 17503 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 17504 it in ERR_remove_state if appropriate, and change ERR_get_state 17505 accordingly to avoid race conditions (this is necessary because 17506 thread_hash is no longer constant once set). 17507 17508 *Bodo Moeller* 17509 17510 * Bugfix for linux-elf makefile.one. 17511 17512 *Ulf Möller* 17513 17514 * RSA_get_default_method() will now cause a default 17515 RSA_METHOD to be chosen if one doesn't exist already. 17516 Previously this was only set during a call to RSA_new() 17517 or RSA_new_method(NULL) meaning it was possible for 17518 RSA_get_default_method() to return NULL. 17519 17520 *Geoff Thorpe* 17521 17522 * Added native name translation to the existing DSO code 17523 that will convert (if the flag to do so is set) filenames 17524 that are sufficiently small and have no path information 17525 into a canonical native form. Eg. "blah" converted to 17526 "libblah.so" or "blah.dll" etc. 17527 17528 *Geoff Thorpe* 17529 17530 * New function ERR_error_string_n(e, buf, len) which is like 17531 ERR_error_string(e, buf), but writes at most 'len' bytes 17532 including the 0 terminator. For ERR_error_string_n, 'buf' 17533 may not be NULL. 17534 17535 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 17536 17537 * CONF library reworked to become more general. A new CONF 17538 configuration file reader "class" is implemented as well as a 17539 new functions (`NCONF_*`, for "New CONF") to handle it. The now 17540 old `CONF_*` functions are still there, but are reimplemented to 17541 work in terms of the new functions. Also, a set of functions 17542 to handle the internal storage of the configuration data is 17543 provided to make it easier to write new configuration file 17544 reader "classes" (I can definitely see something reading a 17545 configuration file in XML format, for example), called `_CONF_*`, 17546 or "the configuration storage API"... 17547 17548 The new configuration file reading functions are: 17549 17550 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 17551 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 17552 17553 NCONF_default, NCONF_WIN32 17554 17555 NCONF_dump_fp, NCONF_dump_bio 17556 17557 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 17558 NCONF_new creates a new CONF object. This works in the same way 17559 as other interfaces in OpenSSL, like the BIO interface. 17560 `NCONF_dump_*` dump the internal storage of the configuration file, 17561 which is useful for debugging. All other functions take the same 17562 arguments as the old `CONF_*` functions with the exception of the 17563 first that must be a `CONF *` instead of a `LHASH *`. 17564 17565 To make it easier to use the new classes with the old `CONF_*` functions, 17566 the function CONF_set_default_method is provided. 17567 17568 *Richard Levitte* 17569 17570 * Add '-tls1' option to 'openssl ciphers', which was already 17571 mentioned in the documentation but had not been implemented. 17572 (This option is not yet really useful because even the additional 17573 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 17574 17575 *Bodo Moeller* 17576 17577 * Initial DSO code added into libcrypto for letting OpenSSL (and 17578 OpenSSL-based applications) load shared libraries and bind to 17579 them in a portable way. 17580 17581 *Geoff Thorpe, with contributions from Richard Levitte* 17582 17583### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 17584 17585 * Make sure _lrotl and _lrotr are only used with MSVC. 17586 17587 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 17588 (the default implementation of RAND_status). 17589 17590 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 17591 to '-clrext' (= clear extensions), as intended and documented. 17592 *Bodo Moeller; inconsistency pointed out by Michael Attili 17593 <attili@amaxo.com>* 17594 17595 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 17596 was larger than the MD block size. 17597 17598 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 17599 17600 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 17601 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 17602 using the passed key: if the passed key was a private key the result 17603 of X509_print(), for example, would be to print out all the private key 17604 components. 17605 17606 *Steve Henson* 17607 17608 * des_quad_cksum() byte order bug fix. 17609 *Ulf Möller, using the problem description in krb4-0.9.7, where 17610 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 17611 17612 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 17613 discouraged. 17614 17615 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 17616 17617 * For easily testing in shell scripts whether some command 17618 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 17619 returns with exit code 0 iff no command of the given name is available. 17620 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 17621 the output goes to stdout and nothing is printed to stderr. 17622 Additional arguments are always ignored. 17623 17624 Since for each cipher there is a command of the same name, 17625 the 'no-cipher' compilation switches can be tested this way. 17626 17627 ('openssl no-XXX' is not able to detect pseudo-commands such 17628 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 17629 17630 *Bodo Moeller* 17631 17632 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 17633 17634 *Bodo Moeller* 17635 17636 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 17637 is set; it will be thrown away anyway because each handshake creates 17638 its own key. 17639 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 17640 to parameters -- in previous versions (since OpenSSL 0.9.3) the 17641 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 17642 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 17643 17644 *Bodo Moeller* 17645 17646 * New s_client option -ign_eof: EOF at stdin is ignored, and 17647 'Q' and 'R' lose their special meanings (quit/renegotiate). 17648 This is part of what -quiet does; unlike -quiet, -ign_eof 17649 does not suppress any output. 17650 17651 *Richard Levitte* 17652 17653 * Add compatibility options to the purpose and trust code. The 17654 purpose X509_PURPOSE_ANY is "any purpose" which automatically 17655 accepts a certificate or CA, this was the previous behaviour, 17656 with all the associated security issues. 17657 17658 X509_TRUST_COMPAT is the old trust behaviour: only and 17659 automatically trust self signed roots in certificate store. A 17660 new trust setting X509_TRUST_DEFAULT is used to specify that 17661 a purpose has no associated trust setting and it should instead 17662 use the value in the default purpose. 17663 17664 *Steve Henson* 17665 17666 * Fix the PKCS#8 DSA private key code so it decodes keys again 17667 and fix a memory leak. 17668 17669 *Steve Henson* 17670 17671 * In util/mkerr.pl (which implements 'make errors'), preserve 17672 reason strings from the previous version of the .c file, as 17673 the default to have only downcase letters (and digits) in 17674 automatically generated reasons codes is not always appropriate. 17675 17676 *Bodo Moeller* 17677 17678 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 17679 using strerror. Previously, ERR_reason_error_string() returned 17680 library names as reason strings for SYSerr; but SYSerr is a special 17681 case where small numbers are errno values, not library numbers. 17682 17683 *Bodo Moeller* 17684 17685 * Add '-dsaparam' option to 'openssl dhparam' application. This 17686 converts DSA parameters into DH parameters. (When creating parameters, 17687 DSA_generate_parameters is used.) 17688 17689 *Bodo Moeller* 17690 17691 * Include 'length' (recommended exponent length) in C code generated 17692 by 'openssl dhparam -C'. 17693 17694 *Bodo Moeller* 17695 17696 * The second argument to set_label in perlasm was already being used 17697 so couldn't be used as a "file scope" flag. Moved to third argument 17698 which was free. 17699 17700 *Steve Henson* 17701 17702 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 17703 instead of RAND_bytes for encryption IVs and salts. 17704 17705 *Bodo Moeller* 17706 17707 * Include RAND_status() into RAND_METHOD instead of implementing 17708 it only for md_rand.c Otherwise replacing the PRNG by calling 17709 RAND_set_rand_method would be impossible. 17710 17711 *Bodo Moeller* 17712 17713 * Don't let DSA_generate_key() enter an infinite loop if the random 17714 number generation fails. 17715 17716 *Bodo Moeller* 17717 17718 * New 'rand' application for creating pseudo-random output. 17719 17720 *Bodo Moeller* 17721 17722 * Added configuration support for Linux/IA64 17723 17724 *Rolf Haberrecker <rolf@suse.de>* 17725 17726 * Assembler module support for Mingw32. 17727 17728 *Ulf Möller* 17729 17730 * Shared library support for HPUX (in shlib/). 17731 17732 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 17733 17734 * Shared library support for Solaris gcc. 17735 17736 *Lutz Behnke <behnke@trustcenter.de>* 17737 17738### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 17739 17740 * PKCS7_encrypt() was adding text MIME headers twice because they 17741 were added manually and by SMIME_crlf_copy(). 17742 17743 *Steve Henson* 17744 17745 * In bntest.c don't call BN_rand with zero bits argument. 17746 17747 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 17748 17749 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 17750 case was implemented. This caused BN_div_recp() to fail occasionally. 17751 17752 *Ulf Möller* 17753 17754 * Add an optional second argument to the set_label() in the perl 17755 assembly language builder. If this argument exists and is set 17756 to 1 it signals that the assembler should use a symbol whose 17757 scope is the entire file, not just the current function. This 17758 is needed with MASM which uses the format label:: for this scope. 17759 17760 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 17761 17762 * Change the ASN1 types so they are typedefs by default. Before 17763 almost all types were #define'd to ASN1_STRING which was causing 17764 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 17765 for example. 17766 17767 *Steve Henson* 17768 17769 * Change names of new functions to the new get1/get0 naming 17770 convention: After 'get1', the caller owns a reference count 17771 and has to call `..._free`; 'get0' returns a pointer to some 17772 data structure without incrementing reference counters. 17773 (Some of the existing 'get' functions increment a reference 17774 counter, some don't.) 17775 Similarly, 'set1' and 'add1' functions increase reference 17776 counters or duplicate objects. 17777 17778 *Steve Henson* 17779 17780 * Allow for the possibility of temp RSA key generation failure: 17781 the code used to assume it always worked and crashed on failure. 17782 17783 *Steve Henson* 17784 17785 * Fix potential buffer overrun problem in BIO_printf(). 17786 *Ulf Möller, using public domain code by Patrick Powell; problem 17787 pointed out by David Sacerdote <das33@cornell.edu>* 17788 17789 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 17790 RAND_egd() and RAND_status(). In the command line application, 17791 the EGD socket can be specified like a seed file using RANDFILE 17792 or -rand. 17793 17794 *Ulf Möller* 17795 17796 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 17797 Some CAs (e.g. Verisign) distribute certificates in this form. 17798 17799 *Steve Henson* 17800 17801 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 17802 list to exclude them. This means that no special compilation option 17803 is needed to use anonymous DH: it just needs to be included in the 17804 cipher list. 17805 17806 *Steve Henson* 17807 17808 * Change the EVP_MD_CTX_type macro so its meaning consistent with 17809 EVP_MD_type. The old functionality is available in a new macro called 17810 EVP_MD_md(). Change code that uses it and update docs. 17811 17812 *Steve Henson* 17813 17814 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 17815 where the `void *` argument is replaced by a function pointer argument. 17816 Previously `void *` was abused to point to functions, which works on 17817 many platforms, but is not correct. As these functions are usually 17818 called by macros defined in OpenSSL header files, most source code 17819 should work without changes. 17820 17821 *Richard Levitte* 17822 17823 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 17824 sections with information on -D... compiler switches used for 17825 compiling the library so that applications can see them. To enable 17826 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 17827 must be defined. E.g., 17828 #define OPENSSL_ALGORITHM_DEFINES 17829 #include <openssl/opensslconf.h> 17830 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 17831 17832 *Richard Levitte, Ulf and Bodo Möller* 17833 17834 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 17835 record layer. 17836 17837 *Bodo Moeller* 17838 17839 * Change the 'other' type in certificate aux info to a STACK_OF 17840 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 17841 the required ASN1 format: arbitrary types determined by an OID. 17842 17843 *Steve Henson* 17844 17845 * Add some PEM_write_X509_REQ_NEW() functions and a command line 17846 argument to 'req'. This is not because the function is newer or 17847 better than others it just uses the work 'NEW' in the certificate 17848 request header lines. Some software needs this. 17849 17850 *Steve Henson* 17851 17852 * Reorganise password command line arguments: now passwords can be 17853 obtained from various sources. Delete the PEM_cb function and make 17854 it the default behaviour: i.e. if the callback is NULL and the 17855 usrdata argument is not NULL interpret it as a null terminated pass 17856 phrase. If usrdata and the callback are NULL then the pass phrase 17857 is prompted for as usual. 17858 17859 *Steve Henson* 17860 17861 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 17862 the support is automatically enabled. The resulting binaries will 17863 autodetect the card and use it if present. 17864 17865 *Ben Laurie and Compaq Inc.* 17866 17867 * Work around for Netscape hang bug. This sends certificate request 17868 and server done in one record. Since this is perfectly legal in the 17869 SSL/TLS protocol it isn't a "bug" option and is on by default. See 17870 the bugs/SSLv3 entry for more info. 17871 17872 *Steve Henson* 17873 17874 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 17875 17876 *Andy Polyakov* 17877 17878 * Add -rand argument to smime and pkcs12 applications and read/write 17879 of seed file. 17880 17881 *Steve Henson* 17882 17883 * New 'passwd' tool for crypt(3) and apr1 password hashes. 17884 17885 *Bodo Moeller* 17886 17887 * Add command line password options to the remaining applications. 17888 17889 *Steve Henson* 17890 17891 * Bug fix for BN_div_recp() for numerators with an even number of 17892 bits. 17893 17894 *Ulf Möller* 17895 17896 * More tests in bntest.c, and changed test_bn output. 17897 17898 *Ulf Möller* 17899 17900 * ./config recognizes MacOS X now. 17901 17902 *Andy Polyakov* 17903 17904 * Bug fix for BN_div() when the first words of num and divisor are 17905 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 17906 17907 *Ulf Möller* 17908 17909 * Add support for various broken PKCS#8 formats, and command line 17910 options to produce them. 17911 17912 *Steve Henson* 17913 17914 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 17915 get temporary BIGNUMs from a BN_CTX. 17916 17917 *Ulf Möller* 17918 17919 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 17920 for p == 0. 17921 17922 *Ulf Möller* 17923 17924 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 17925 include a #define from the old name to the new. The original intent 17926 was that statically linked binaries could for example just call 17927 SSLeay_add_all_ciphers() to just add ciphers to the table and not 17928 link with digests. This never worked because SSLeay_add_all_digests() 17929 and SSLeay_add_all_ciphers() were in the same source file so calling 17930 one would link with the other. They are now in separate source files. 17931 17932 *Steve Henson* 17933 17934 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 17935 17936 *Steve Henson* 17937 17938 * Use a less unusual form of the Miller-Rabin primality test (it used 17939 a binary algorithm for exponentiation integrated into the Miller-Rabin 17940 loop, our standard modexp algorithms are faster). 17941 17942 *Bodo Moeller* 17943 17944 * Support for the EBCDIC character set completed. 17945 17946 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 17947 17948 * Source code cleanups: use const where appropriate, eliminate casts, 17949 use `void *` instead of `char *` in lhash. 17950 17951 *Ulf Möller* 17952 17953 * Bugfix: ssl3_send_server_key_exchange was not restartable 17954 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 17955 this the server could overwrite ephemeral keys that the client 17956 has already seen). 17957 17958 *Bodo Moeller* 17959 17960 * Turn DSA_is_prime into a macro that calls BN_is_prime, 17961 using 50 iterations of the Rabin-Miller test. 17962 17963 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 17964 iterations of the Rabin-Miller test as required by the appendix 17965 to FIPS PUB 186[-1]) instead of DSA_is_prime. 17966 As BN_is_prime_fasttest includes trial division, DSA parameter 17967 generation becomes much faster. 17968 17969 This implies a change for the callback functions in DSA_is_prime 17970 and DSA_generate_parameters: The callback function is called once 17971 for each positive witness in the Rabin-Miller test, not just 17972 occasionally in the inner loop; and the parameters to the 17973 callback function now provide an iteration count for the outer 17974 loop rather than for the current invocation of the inner loop. 17975 DSA_generate_parameters additionally can call the callback 17976 function with an 'iteration count' of -1, meaning that a 17977 candidate has passed the trial division test (when q is generated 17978 from an application-provided seed, trial division is skipped). 17979 17980 *Bodo Moeller* 17981 17982 * New function BN_is_prime_fasttest that optionally does trial 17983 division before starting the Rabin-Miller test and has 17984 an additional BN_CTX * argument (whereas BN_is_prime always 17985 has to allocate at least one BN_CTX). 17986 'callback(1, -1, cb_arg)' is called when a number has passed the 17987 trial division stage. 17988 17989 *Bodo Moeller* 17990 17991 * Fix for bug in CRL encoding. The validity dates weren't being handled 17992 as ASN1_TIME. 17993 17994 *Steve Henson* 17995 17996 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 17997 17998 *Steve Henson* 17999 18000 * New function BN_pseudo_rand(). 18001 18002 *Ulf Möller* 18003 18004 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 18005 bignum version of BN_from_montgomery() with the working code from 18006 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 18007 the comments. 18008 18009 *Ulf Möller* 18010 18011 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 18012 made it impossible to use the same SSL_SESSION data structure in 18013 SSL2 clients in multiple threads. 18014 18015 *Bodo Moeller* 18016 18017 * The return value of RAND_load_file() no longer counts bytes obtained 18018 by stat(). RAND_load_file(..., -1) is new and uses the complete file 18019 to seed the PRNG (previously an explicit byte count was required). 18020 18021 *Ulf Möller, Bodo Möller* 18022 18023 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 18024 used `char *` instead of `void *` and had casts all over the place. 18025 18026 *Steve Henson* 18027 18028 * Make BN_generate_prime() return NULL on error if ret!=NULL. 18029 18030 *Ulf Möller* 18031 18032 * Retain source code compatibility for BN_prime_checks macro: 18033 BN_is_prime(..., BN_prime_checks, ...) now uses 18034 BN_prime_checks_for_size to determine the appropriate number of 18035 Rabin-Miller iterations. 18036 18037 *Ulf Möller* 18038 18039 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 18040 DH_CHECK_P_NOT_SAFE_PRIME. 18041 (Check if this is true? OpenPGP calls them "strong".) 18042 18043 *Ulf Möller* 18044 18045 * Merge the functionality of "dh" and "gendh" programs into a new program 18046 "dhparam". The old programs are retained for now but will handle DH keys 18047 (instead of parameters) in future. 18048 18049 *Steve Henson* 18050 18051 * Make the ciphers, s_server and s_client programs check the return values 18052 when a new cipher list is set. 18053 18054 *Steve Henson* 18055 18056 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 18057 ciphers. Before when the 56bit ciphers were enabled the sorting was 18058 wrong. 18059 18060 The syntax for the cipher sorting has been extended to support sorting by 18061 cipher-strength (using the strength_bits hard coded in the tables). 18062 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 18063 18064 Fix a bug in the cipher-command parser: when supplying a cipher command 18065 string with an "undefined" symbol (neither command nor alphanumeric 18066 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 18067 an error is flagged. 18068 18069 Due to the strength-sorting extension, the code of the 18070 ssl_create_cipher_list() function was completely rearranged. I hope that 18071 the readability was also increased :-) 18072 18073 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 18074 18075 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 18076 for the first serial number and places 2 in the serial number file. This 18077 avoids problems when the root CA is created with serial number zero and 18078 the first user certificate has the same issuer name and serial number 18079 as the root CA. 18080 18081 *Steve Henson* 18082 18083 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 18084 the new code. Add documentation for this stuff. 18085 18086 *Steve Henson* 18087 18088 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 18089 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 18090 structures and behave in an analogous way to the X509v3 functions: 18091 they shouldn't be called directly but wrapper functions should be used 18092 instead. 18093 18094 So we also now have some wrapper functions that call the X509at functions 18095 when passed certificate requests. (TO DO: similar things can be done with 18096 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 18097 things. Some of these need some d2i or i2d and print functionality 18098 because they handle more complex structures.) 18099 18100 *Steve Henson* 18101 18102 * Add missing #ifndefs that caused missing symbols when building libssl 18103 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 18104 NO_RSA in `ssl/s2*.c`. 18105 18106 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 18107 18108 * Precautions against using the PRNG uninitialized: RAND_bytes() now 18109 has a return value which indicates the quality of the random data 18110 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 18111 error queue. New function RAND_pseudo_bytes() generates output that is 18112 guaranteed to be unique but not unpredictable. RAND_add is like 18113 RAND_seed, but takes an extra argument for an entropy estimate 18114 (RAND_seed always assumes full entropy). 18115 18116 *Ulf Möller* 18117 18118 * Do more iterations of Rabin-Miller probable prime test (specifically, 18119 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 18120 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 18121 in crypto/bn/bn_prime.c for the complete table). This guarantees a 18122 false-positive rate of at most 2^-80 for random input. 18123 18124 *Bodo Moeller* 18125 18126 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 18127 18128 *Bodo Moeller* 18129 18130 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 18131 in the 0.9.5 release), this returns the chain 18132 from an X509_CTX structure with a dup of the stack and all 18133 the X509 reference counts upped: so the stack will exist 18134 after X509_CTX_cleanup() has been called. Modify pkcs12.c 18135 to use this. 18136 18137 Also make SSL_SESSION_print() print out the verify return 18138 code. 18139 18140 *Steve Henson* 18141 18142 * Add manpage for the pkcs12 command. Also change the default 18143 behaviour so MAC iteration counts are used unless the new 18144 -nomaciter option is used. This improves file security and 18145 only older versions of MSIE (4.0 for example) need it. 18146 18147 *Steve Henson* 18148 18149 * Honor the no-xxx Configure options when creating .DEF files. 18150 18151 *Ulf Möller* 18152 18153 * Add PKCS#10 attributes to field table: challengePassword, 18154 unstructuredName and unstructuredAddress. These are taken from 18155 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 18156 international characters are used. 18157 18158 More changes to X509_ATTRIBUTE code: allow the setting of types 18159 based on strings. Remove the 'loc' parameter when adding 18160 attributes because these will be a SET OF encoding which is sorted 18161 in ASN1 order. 18162 18163 *Steve Henson* 18164 18165 * Initial changes to the 'req' utility to allow request generation 18166 automation. This will allow an application to just generate a template 18167 file containing all the field values and have req construct the 18168 request. 18169 18170 Initial support for X509_ATTRIBUTE handling. Stacks of these are 18171 used all over the place including certificate requests and PKCS#7 18172 structures. They are currently handled manually where necessary with 18173 some primitive wrappers for PKCS#7. The new functions behave in a 18174 manner analogous to the X509 extension functions: they allow 18175 attributes to be looked up by NID and added. 18176 18177 Later something similar to the X509V3 code would be desirable to 18178 automatically handle the encoding, decoding and printing of the 18179 more complex types. The string types like challengePassword can 18180 be handled by the string table functions. 18181 18182 Also modified the multi byte string table handling. Now there is 18183 a 'global mask' which masks out certain types. The table itself 18184 can use the flag STABLE_NO_MASK to ignore the mask setting: this 18185 is useful when for example there is only one permissible type 18186 (as in countryName) and using the mask might result in no valid 18187 types at all. 18188 18189 *Steve Henson* 18190 18191 * Clean up 'Finished' handling, and add functions SSL_get_finished and 18192 SSL_get_peer_finished to allow applications to obtain the latest 18193 Finished messages sent to the peer or expected from the peer, 18194 respectively. (SSL_get_peer_finished is usually the Finished message 18195 actually received from the peer, otherwise the protocol will be aborted.) 18196 18197 As the Finished message are message digests of the complete handshake 18198 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 18199 be used for external authentication procedures when the authentication 18200 provided by SSL/TLS is not desired or is not enough. 18201 18202 *Bodo Moeller* 18203 18204 * Enhanced support for Alpha Linux is added. Now ./config checks if 18205 the host supports BWX extension and if Compaq C is present on the 18206 $PATH. Just exploiting of the BWX extension results in 20-30% 18207 performance kick for some algorithms, e.g. DES and RC4 to mention 18208 a couple. Compaq C in turn generates ~20% faster code for MD5 and 18209 SHA1. 18210 18211 *Andy Polyakov* 18212 18213 * Add support for MS "fast SGC". This is arguably a violation of the 18214 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 18215 weak crypto and after checking the certificate is SGC a second one 18216 with strong crypto. MS SGC stops the first handshake after receiving 18217 the server certificate message and sends a second client hello. Since 18218 a server will typically do all the time consuming operations before 18219 expecting any further messages from the client (server key exchange 18220 is the most expensive) there is little difference between the two. 18221 18222 To get OpenSSL to support MS SGC we have to permit a second client 18223 hello message after we have sent server done. In addition we have to 18224 reset the MAC if we do get this second client hello. 18225 18226 *Steve Henson* 18227 18228 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 18229 if a DER encoded private key is RSA or DSA traditional format. Changed 18230 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 18231 format DER encoded private key. Newer code should use PKCS#8 format which 18232 has the key type encoded in the ASN1 structure. Added DER private key 18233 support to pkcs8 application. 18234 18235 *Steve Henson* 18236 18237 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 18238 ciphersuites has been selected (as required by the SSL 3/TLS 1 18239 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 18240 is set, we interpret this as a request to violate the specification 18241 (the worst that can happen is a handshake failure, and 'correct' 18242 behaviour would result in a handshake failure anyway). 18243 18244 *Bodo Moeller* 18245 18246 * In SSL_CTX_add_session, take into account that there might be multiple 18247 SSL_SESSION structures with the same session ID (e.g. when two threads 18248 concurrently obtain them from an external cache). 18249 The internal cache can handle only one SSL_SESSION with a given ID, 18250 so if there's a conflict, we now throw out the old one to achieve 18251 consistency. 18252 18253 *Bodo Moeller* 18254 18255 * Add OIDs for idea and blowfish in CBC mode. This will allow both 18256 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 18257 some routines that use cipher OIDs: some ciphers do not have OIDs 18258 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 18259 example. 18260 18261 *Steve Henson* 18262 18263 * Simplify the trust setting structure and code. Now we just have 18264 two sequences of OIDs for trusted and rejected settings. These will 18265 typically have values the same as the extended key usage extension 18266 and any application specific purposes. 18267 18268 The trust checking code now has a default behaviour: it will just 18269 check for an object with the same NID as the passed id. Functions can 18270 be provided to override either the default behaviour or the behaviour 18271 for a given id. SSL client, server and email already have functions 18272 in place for compatibility: they check the NID and also return "trusted" 18273 if the certificate is self signed. 18274 18275 *Steve Henson* 18276 18277 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 18278 traditional format into an EVP_PKEY structure. 18279 18280 *Steve Henson* 18281 18282 * Add a password callback function PEM_cb() which either prompts for 18283 a password if usr_data is NULL or otherwise assumes it is a null 18284 terminated password. Allow passwords to be passed on command line 18285 environment or config files in a few more utilities. 18286 18287 *Steve Henson* 18288 18289 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 18290 keys. Add some short names for PKCS#8 PBE algorithms and allow them 18291 to be specified on the command line for the pkcs8 and pkcs12 utilities. 18292 Update documentation. 18293 18294 *Steve Henson* 18295 18296 * Support for ASN1 "NULL" type. This could be handled before by using 18297 ASN1_TYPE but there wasn't any function that would try to read a NULL 18298 and produce an error if it couldn't. For compatibility we also have 18299 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 18300 don't allocate anything because they don't need to. 18301 18302 *Steve Henson* 18303 18304 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 18305 for details. 18306 18307 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 18308 18309 * Rebuild of the memory allocation routines used by OpenSSL code and 18310 possibly others as well. The purpose is to make an interface that 18311 provide hooks so anyone can build a separate set of allocation and 18312 deallocation routines to be used by OpenSSL, for example memory 18313 pool implementations, or something else, which was previously hard 18314 since Malloc(), Realloc() and Free() were defined as macros having 18315 the values malloc, realloc and free, respectively (except for Win32 18316 compilations). The same is provided for memory debugging code. 18317 OpenSSL already comes with functionality to find memory leaks, but 18318 this gives people a chance to debug other memory problems. 18319 18320 With these changes, a new set of functions and macros have appeared: 18321 18322 CRYPTO_set_mem_debug_functions() [F] 18323 CRYPTO_get_mem_debug_functions() [F] 18324 CRYPTO_dbg_set_options() [F] 18325 CRYPTO_dbg_get_options() [F] 18326 CRYPTO_malloc_debug_init() [M] 18327 18328 The memory debug functions are NULL by default, unless the library 18329 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 18330 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 18331 gives the standard debugging functions that come with OpenSSL) or 18332 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 18333 provided by the library user) must be used. When the standard 18334 debugging functions are used, CRYPTO_dbg_set_options can be used to 18335 request additional information: 18336 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 18337 the CRYPTO_MDEBUG_xxx macro when compiling the library. 18338 18339 Also, things like CRYPTO_set_mem_functions will always give the 18340 expected result (the new set of functions is used for allocation 18341 and deallocation) at all times, regardless of platform and compiler 18342 options. 18343 18344 To finish it up, some functions that were never use in any other 18345 way than through macros have a new API and new semantic: 18346 18347 CRYPTO_dbg_malloc() 18348 CRYPTO_dbg_realloc() 18349 CRYPTO_dbg_free() 18350 18351 All macros of value have retained their old syntax. 18352 18353 *Richard Levitte and Bodo Moeller* 18354 18355 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 18356 ordering of SMIMECapabilities wasn't in "strength order" and there 18357 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 18358 algorithm. 18359 18360 *Steve Henson* 18361 18362 * Some ASN1 types with illegal zero length encoding (INTEGER, 18363 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 18364 18365 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 18366 18367 * Merge in my S/MIME library for OpenSSL. This provides a simple 18368 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 18369 functionality to handle multipart/signed properly) and a utility 18370 called 'smime' to call all this stuff. This is based on code I 18371 originally wrote for Celo who have kindly allowed it to be 18372 included in OpenSSL. 18373 18374 *Steve Henson* 18375 18376 * Add variants des_set_key_checked and des_set_key_unchecked of 18377 des_set_key (aka des_key_sched). Global variable des_check_key 18378 decides which of these is called by des_set_key; this way 18379 des_check_key behaves as it always did, but applications and 18380 the library itself, which was buggy for des_check_key == 1, 18381 have a cleaner way to pick the version they need. 18382 18383 *Bodo Moeller* 18384 18385 * New function PKCS12_newpass() which changes the password of a 18386 PKCS12 structure. 18387 18388 *Steve Henson* 18389 18390 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 18391 dynamic mix. In both cases the ids can be used as an index into the 18392 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 18393 functions so they accept a list of the field values and the 18394 application doesn't need to directly manipulate the X509_TRUST 18395 structure. 18396 18397 *Steve Henson* 18398 18399 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 18400 need initialising. 18401 18402 *Steve Henson* 18403 18404 * Modify the way the V3 extension code looks up extensions. This now 18405 works in a similar way to the object code: we have some "standard" 18406 extensions in a static table which is searched with OBJ_bsearch() 18407 and the application can add dynamic ones if needed. The file 18408 crypto/x509v3/ext_dat.h now has the info: this file needs to be 18409 updated whenever a new extension is added to the core code and kept 18410 in ext_nid order. There is a simple program 'tabtest.c' which checks 18411 this. New extensions are not added too often so this file can readily 18412 be maintained manually. 18413 18414 There are two big advantages in doing things this way. The extensions 18415 can be looked up immediately and no longer need to be "added" using 18416 X509V3_add_standard_extensions(): this function now does nothing. 18417 Side note: I get *lots* of email saying the extension code doesn't 18418 work because people forget to call this function. 18419 Also no dynamic allocation is done unless new extensions are added: 18420 so if we don't add custom extensions there is no need to call 18421 X509V3_EXT_cleanup(). 18422 18423 *Steve Henson* 18424 18425 * Modify enc utility's salting as follows: make salting the default. Add a 18426 magic header, so unsalted files fail gracefully instead of just decrypting 18427 to garbage. This is because not salting is a big security hole, so people 18428 should be discouraged from doing it. 18429 18430 *Ben Laurie* 18431 18432 * Fixes and enhancements to the 'x509' utility. It allowed a message 18433 digest to be passed on the command line but it only used this 18434 parameter when signing a certificate. Modified so all relevant 18435 operations are affected by the digest parameter including the 18436 -fingerprint and -x509toreq options. Also -x509toreq choked if a 18437 DSA key was used because it didn't fix the digest. 18438 18439 *Steve Henson* 18440 18441 * Initial certificate chain verify code. Currently tests the untrusted 18442 certificates for consistency with the verify purpose (which is set 18443 when the X509_STORE_CTX structure is set up) and checks the pathlength. 18444 18445 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 18446 this is because it will reject chains with invalid extensions whereas 18447 every previous version of OpenSSL and SSLeay made no checks at all. 18448 18449 Trust code: checks the root CA for the relevant trust settings. Trust 18450 settings have an initial value consistent with the verify purpose: e.g. 18451 if the verify purpose is for SSL client use it expects the CA to be 18452 trusted for SSL client use. However the default value can be changed to 18453 permit custom trust settings: one example of this would be to only trust 18454 certificates from a specific "secure" set of CAs. 18455 18456 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 18457 which should be used for version portability: especially since the 18458 verify structure is likely to change more often now. 18459 18460 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 18461 to set them. If not set then assume SSL clients will verify SSL servers 18462 and vice versa. 18463 18464 Two new options to the verify program: -untrusted allows a set of 18465 untrusted certificates to be passed in and -purpose which sets the 18466 intended purpose of the certificate. If a purpose is set then the 18467 new chain verify code is used to check extension consistency. 18468 18469 *Steve Henson* 18470 18471 * Support for the authority information access extension. 18472 18473 *Steve Henson* 18474 18475 * Modify RSA and DSA PEM read routines to transparently handle 18476 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 18477 public keys in a format compatible with certificate 18478 SubjectPublicKeyInfo structures. Unfortunately there were already 18479 functions called *_PublicKey_* which used various odd formats so 18480 these are retained for compatibility: however the DSA variants were 18481 never in a public release so they have been deleted. Changed dsa/rsa 18482 utilities to handle the new format: note no releases ever handled public 18483 keys so we should be OK. 18484 18485 The primary motivation for this change is to avoid the same fiasco 18486 that dogs private keys: there are several incompatible private key 18487 formats some of which are standard and some OpenSSL specific and 18488 require various evil hacks to allow partial transparent handling and 18489 even then it doesn't work with DER formats. Given the option anything 18490 other than PKCS#8 should be dumped: but the other formats have to 18491 stay in the name of compatibility. 18492 18493 With public keys and the benefit of hindsight one standard format 18494 is used which works with EVP_PKEY, RSA or DSA structures: though 18495 it clearly returns an error if you try to read the wrong kind of key. 18496 18497 Added a -pubkey option to the 'x509' utility to output the public key. 18498 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 18499 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 18500 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 18501 that do the same as the `EVP_PKEY_assign_*()` except they up the 18502 reference count of the added key (they don't "swallow" the 18503 supplied key). 18504 18505 *Steve Henson* 18506 18507 * Fixes to crypto/x509/by_file.c the code to read in certificates and 18508 CRLs would fail if the file contained no certificates or no CRLs: 18509 added a new function to read in both types and return the number 18510 read: this means that if none are read it will be an error. The 18511 DER versions of the certificate and CRL reader would always fail 18512 because it isn't possible to mix certificates and CRLs in DER format 18513 without choking one or the other routine. Changed this to just read 18514 a certificate: this is the best we can do. Also modified the code 18515 in `apps/verify.c` to take notice of return codes: it was previously 18516 attempting to read in certificates from NULL pointers and ignoring 18517 any errors: this is one reason why the cert and CRL reader seemed 18518 to work. It doesn't check return codes from the default certificate 18519 routines: these may well fail if the certificates aren't installed. 18520 18521 *Steve Henson* 18522 18523 * Code to support otherName option in GeneralName. 18524 18525 *Steve Henson* 18526 18527 * First update to verify code. Change the verify utility 18528 so it warns if it is passed a self signed certificate: 18529 for consistency with the normal behaviour. X509_verify 18530 has been modified to it will now verify a self signed 18531 certificate if *exactly* the same certificate appears 18532 in the store: it was previously impossible to trust a 18533 single self signed certificate. This means that: 18534 openssl verify ss.pem 18535 now gives a warning about a self signed certificate but 18536 openssl verify -CAfile ss.pem ss.pem 18537 is OK. 18538 18539 *Steve Henson* 18540 18541 * For servers, store verify_result in SSL_SESSION data structure 18542 (and add it to external session representation). 18543 This is needed when client certificate verifications fails, 18544 but an application-provided verification callback (set by 18545 SSL_CTX_set_cert_verify_callback) allows accepting the session 18546 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 18547 but returns 1): When the session is reused, we have to set 18548 ssl->verify_result to the appropriate error code to avoid 18549 security holes. 18550 18551 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 18552 18553 * Fix a bug in the new PKCS#7 code: it didn't consider the 18554 case in PKCS7_dataInit() where the signed PKCS7 structure 18555 didn't contain any existing data because it was being created. 18556 18557 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 18558 18559 * Add a salt to the key derivation routines in enc.c. This 18560 forms the first 8 bytes of the encrypted file. Also add a 18561 -S option to allow a salt to be input on the command line. 18562 18563 *Steve Henson* 18564 18565 * New function X509_cmp(). Oddly enough there wasn't a function 18566 to compare two certificates. We do this by working out the SHA1 18567 hash and comparing that. X509_cmp() will be needed by the trust 18568 code. 18569 18570 *Steve Henson* 18571 18572 * SSL_get1_session() is like SSL_get_session(), but increments 18573 the reference count in the SSL_SESSION returned. 18574 18575 *Geoff Thorpe <geoff@eu.c2.net>* 18576 18577 * Fix for 'req': it was adding a null to request attributes. 18578 Also change the X509_LOOKUP and X509_INFO code to handle 18579 certificate auxiliary information. 18580 18581 *Steve Henson* 18582 18583 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 18584 the 'enc' command. 18585 18586 *Steve Henson* 18587 18588 * Add the possibility to add extra information to the memory leak 18589 detecting output, to form tracebacks, showing from where each 18590 allocation was originated: CRYPTO_push_info("constant string") adds 18591 the string plus current file name and line number to a per-thread 18592 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 18593 is like calling CYRPTO_pop_info() until the stack is empty. 18594 Also updated memory leak detection code to be multi-thread-safe. 18595 18596 *Richard Levitte* 18597 18598 * Add options -text and -noout to pkcs7 utility and delete the 18599 encryption options which never did anything. Update docs. 18600 18601 *Steve Henson* 18602 18603 * Add options to some of the utilities to allow the pass phrase 18604 to be included on either the command line (not recommended on 18605 OSes like Unix) or read from the environment. Update the 18606 manpages and fix a few bugs. 18607 18608 *Steve Henson* 18609 18610 * Add a few manpages for some of the openssl commands. 18611 18612 *Steve Henson* 18613 18614 * Fix the -revoke option in ca. It was freeing up memory twice, 18615 leaking and not finding already revoked certificates. 18616 18617 *Steve Henson* 18618 18619 * Extensive changes to support certificate auxiliary information. 18620 This involves the use of X509_CERT_AUX structure and X509_AUX 18621 functions. An X509_AUX function such as PEM_read_X509_AUX() 18622 can still read in a certificate file in the usual way but it 18623 will also read in any additional "auxiliary information". By 18624 doing things this way a fair degree of compatibility can be 18625 retained: existing certificates can have this information added 18626 using the new 'x509' options. 18627 18628 Current auxiliary information includes an "alias" and some trust 18629 settings. The trust settings will ultimately be used in enhanced 18630 certificate chain verification routines: currently a certificate 18631 can only be trusted if it is self signed and then it is trusted 18632 for all purposes. 18633 18634 *Steve Henson* 18635 18636 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 18637 The problem was that one of the replacement routines had not been working 18638 since SSLeay releases. For now the offending routine has been replaced 18639 with non-optimised assembler. Even so, this now gives around 95% 18640 performance improvement for 1024 bit RSA signs. 18641 18642 *Mark Cox* 18643 18644 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 18645 handling. Most clients have the effective key size in bits equal to 18646 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 18647 A few however don't do this and instead use the size of the decrypted key 18648 to determine the RC2 key length and the AlgorithmIdentifier to determine 18649 the effective key length. In this case the effective key length can still 18650 be 40 bits but the key length can be 168 bits for example. This is fixed 18651 by manually forcing an RC2 key into the EVP_PKEY structure because the 18652 EVP code can't currently handle unusual RC2 key sizes: it always assumes 18653 the key length and effective key length are equal. 18654 18655 *Steve Henson* 18656 18657 * Add a bunch of functions that should simplify the creation of 18658 X509_NAME structures. Now you should be able to do: 18659 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 18660 and have it automatically work out the correct field type and fill in 18661 the structures. The more adventurous can try: 18662 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 18663 and it will (hopefully) work out the correct multibyte encoding. 18664 18665 *Steve Henson* 18666 18667 * Change the 'req' utility to use the new field handling and multibyte 18668 copy routines. Before the DN field creation was handled in an ad hoc 18669 way in req, ca, and x509 which was rather broken and didn't support 18670 BMPStrings or UTF8Strings. Since some software doesn't implement 18671 BMPStrings or UTF8Strings yet, they can be enabled using the config file 18672 using the dirstring_type option. See the new comment in the default 18673 openssl.cnf for more info. 18674 18675 *Steve Henson* 18676 18677 * Make crypto/rand/md_rand.c more robust: 18678 - Assure unique random numbers after fork(). 18679 - Make sure that concurrent threads access the global counter and 18680 md serializably so that we never lose entropy in them 18681 or use exactly the same state in multiple threads. 18682 Access to the large state is not always serializable because 18683 the additional locking could be a performance killer, and 18684 md should be large enough anyway. 18685 18686 *Bodo Moeller* 18687 18688 * New file `apps/app_rand.c` with commonly needed functionality 18689 for handling the random seed file. 18690 18691 Use the random seed file in some applications that previously did not: 18692 ca, 18693 dsaparam -genkey (which also ignored its '-rand' option), 18694 s_client, 18695 s_server, 18696 x509 (when signing). 18697 Except on systems with /dev/urandom, it is crucial to have a random 18698 seed file at least for key creation, DSA signing, and for DH exchanges; 18699 for RSA signatures we could do without one. 18700 18701 gendh and gendsa (unlike genrsa) used to read only the first byte 18702 of each file listed in the '-rand' option. The function as previously 18703 found in genrsa is now in app_rand.c and is used by all programs 18704 that support '-rand'. 18705 18706 *Bodo Moeller* 18707 18708 * In RAND_write_file, use mode 0600 for creating files; 18709 don't just chmod when it may be too late. 18710 18711 *Bodo Moeller* 18712 18713 * Report an error from X509_STORE_load_locations 18714 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 18715 18716 *Bill Perry* 18717 18718 * New function ASN1_mbstring_copy() this copies a string in either 18719 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 18720 into an ASN1_STRING type. A mask of permissible types is passed 18721 and it chooses the "minimal" type to use or an error if not type 18722 is suitable. 18723 18724 *Steve Henson* 18725 18726 * Add function equivalents to the various macros in asn1.h. The old 18727 macros are retained with an `M_` prefix. Code inside the library can 18728 use the `M_` macros. External code (including the openssl utility) 18729 should *NOT* in order to be "shared library friendly". 18730 18731 *Steve Henson* 18732 18733 * Add various functions that can check a certificate's extensions 18734 to see if it usable for various purposes such as SSL client, 18735 server or S/MIME and CAs of these types. This is currently 18736 VERY EXPERIMENTAL but will ultimately be used for certificate chain 18737 verification. Also added a -purpose flag to x509 utility to 18738 print out all the purposes. 18739 18740 *Steve Henson* 18741 18742 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 18743 functions. 18744 18745 *Steve Henson* 18746 18747 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 18748 for, obtain and decode and extension and obtain its critical flag. 18749 This allows all the necessary extension code to be handled in a 18750 single function call. 18751 18752 *Steve Henson* 18753 18754 * RC4 tune-up featuring 30-40% performance improvement on most RISC 18755 platforms. See crypto/rc4/rc4_enc.c for further details. 18756 18757 *Andy Polyakov* 18758 18759 * New -noout option to asn1parse. This causes no output to be produced 18760 its main use is when combined with -strparse and -out to extract data 18761 from a file (which may not be in ASN.1 format). 18762 18763 *Steve Henson* 18764 18765 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 18766 when producing the local key id. 18767 18768 *Richard Levitte <levitte@stacken.kth.se>* 18769 18770 * New option -dhparam in s_server. This allows a DH parameter file to be 18771 stated explicitly. If it is not stated then it tries the first server 18772 certificate file. The previous behaviour hard coded the filename 18773 "server.pem". 18774 18775 *Steve Henson* 18776 18777 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 18778 a public key to be input or output. For example: 18779 openssl rsa -in key.pem -pubout -out pubkey.pem 18780 Also added necessary DSA public key functions to handle this. 18781 18782 *Steve Henson* 18783 18784 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 18785 in the message. This was handled by allowing 18786 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 18787 18788 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 18789 18790 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 18791 to the end of the strings whereas this didn't. This would cause problems 18792 if strings read with d2i_ASN1_bytes() were later modified. 18793 18794 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 18795 18796 * Fix for base64 decode bug. When a base64 bio reads only one line of 18797 data and it contains EOF it will end up returning an error. This is 18798 caused by input 46 bytes long. The cause is due to the way base64 18799 BIOs find the start of base64 encoded data. They do this by trying a 18800 trial decode on each line until they find one that works. When they 18801 do a flag is set and it starts again knowing it can pass all the 18802 data directly through the decoder. Unfortunately it doesn't reset 18803 the context it uses. This means that if EOF is reached an attempt 18804 is made to pass two EOFs through the context and this causes the 18805 resulting error. This can also cause other problems as well. As is 18806 usual with these problems it takes *ages* to find and the fix is 18807 trivial: move one line. 18808 18809 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 18810 18811 * Ugly workaround to get s_client and s_server working under Windows. The 18812 old code wouldn't work because it needed to select() on sockets and the 18813 tty (for keypresses and to see if data could be written). Win32 only 18814 supports select() on sockets so we select() with a 1s timeout on the 18815 sockets and then see if any characters are waiting to be read, if none 18816 are present then we retry, we also assume we can always write data to 18817 the tty. This isn't nice because the code then blocks until we've 18818 received a complete line of data and it is effectively polling the 18819 keyboard at 1s intervals: however it's quite a bit better than not 18820 working at all :-) A dedicated Windows application might handle this 18821 with an event loop for example. 18822 18823 *Steve Henson* 18824 18825 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 18826 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 18827 will be called when RSA_sign() and RSA_verify() are used. This is useful 18828 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 18829 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 18830 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 18831 This necessitated the support of an extra signature type NID_md5_sha1 18832 for SSL signatures and modifications to the SSL library to use it instead 18833 of calling RSA_public_decrypt() and RSA_private_encrypt(). 18834 18835 *Steve Henson* 18836 18837 * Add new -verify -CAfile and -CApath options to the crl program, these 18838 will lookup a CRL issuers certificate and verify the signature in a 18839 similar way to the verify program. Tidy up the crl program so it 18840 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 18841 less strict. It will now permit CRL extensions even if it is not 18842 a V2 CRL: this will allow it to tolerate some broken CRLs. 18843 18844 *Steve Henson* 18845 18846 * Initialize all non-automatic variables each time one of the openssl 18847 sub-programs is started (this is necessary as they may be started 18848 multiple times from the "OpenSSL>" prompt). 18849 18850 *Lennart Bang, Bodo Moeller* 18851 18852 * Preliminary compilation option RSA_NULL which disables RSA crypto without 18853 removing all other RSA functionality (this is what NO_RSA does). This 18854 is so (for example) those in the US can disable those operations covered 18855 by the RSA patent while allowing storage and parsing of RSA keys and RSA 18856 key generation. 18857 18858 *Steve Henson* 18859 18860 * Non-copying interface to BIO pairs. 18861 (still largely untested) 18862 18863 *Bodo Moeller* 18864 18865 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 18866 ASCII string. This was handled independently in various places before. 18867 18868 *Steve Henson* 18869 18870 * New functions UTF8_getc() and UTF8_putc() that parse and generate 18871 UTF8 strings a character at a time. 18872 18873 *Steve Henson* 18874 18875 * Use client_version from client hello to select the protocol 18876 (s23_srvr.c) and for RSA client key exchange verification 18877 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 18878 18879 *Bodo Moeller* 18880 18881 * Add various utility functions to handle SPKACs, these were previously 18882 handled by poking round in the structure internals. Added new function 18883 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 18884 print, verify and generate SPKACs. Based on an original idea from 18885 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 18886 18887 *Steve Henson* 18888 18889 * RIPEMD160 is operational on all platforms and is back in 'make test'. 18890 18891 *Andy Polyakov* 18892 18893 * Allow the config file extension section to be overwritten on the 18894 command line. Based on an original idea from Massimiliano Pala 18895 <madwolf@comune.modena.it>. The new option is called -extensions 18896 and can be applied to ca, req and x509. Also -reqexts to override 18897 the request extensions in req and -crlexts to override the crl extensions 18898 in ca. 18899 18900 *Steve Henson* 18901 18902 * Add new feature to the SPKAC handling in ca. Now you can include 18903 the same field multiple times by preceding it by "XXXX." for example: 18904 1.OU="Unit name 1" 18905 2.OU="Unit name 2" 18906 this is the same syntax as used in the req config file. 18907 18908 *Steve Henson* 18909 18910 * Allow certificate extensions to be added to certificate requests. These 18911 are specified in a 'req_extensions' option of the req section of the 18912 config file. They can be printed out with the -text option to req but 18913 are otherwise ignored at present. 18914 18915 *Steve Henson* 18916 18917 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 18918 data read consists of only the final block it would not decrypted because 18919 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 18920 A misplaced 'break' also meant the decrypted final block might not be 18921 copied until the next read. 18922 18923 *Steve Henson* 18924 18925 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 18926 a few extra parameters to the DH structure: these will be useful if 18927 for example we want the value of 'q' or implement X9.42 DH. 18928 18929 *Steve Henson* 18930 18931 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 18932 provides hooks that allow the default DSA functions or functions on a 18933 "per key" basis to be replaced. This allows hardware acceleration and 18934 hardware key storage to be handled without major modification to the 18935 library. Also added low-level modexp hooks and CRYPTO_EX structure and 18936 associated functions. 18937 18938 *Steve Henson* 18939 18940 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 18941 as "read only": it can't be written to and the buffer it points to will 18942 not be freed. Reading from a read only BIO is much more efficient than 18943 a normal memory BIO. This was added because there are several times when 18944 an area of memory needs to be read from a BIO. The previous method was 18945 to create a memory BIO and write the data to it, this results in two 18946 copies of the data and an O(n^2) reading algorithm. There is a new 18947 function BIO_new_mem_buf() which creates a read only memory BIO from 18948 an area of memory. Also modified the PKCS#7 routines to use read only 18949 memory BIOs. 18950 18951 *Steve Henson* 18952 18953 * Bugfix: ssl23_get_client_hello did not work properly when called in 18954 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 18955 an SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 18956 but a retry condition occurred while trying to read the rest. 18957 18958 *Bodo Moeller* 18959 18960 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 18961 NID_pkcs7_encrypted by default: this was wrong since this should almost 18962 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 18963 the encrypted data type: this is a more sensible place to put it and it 18964 allows the PKCS#12 code to be tidied up that duplicated this 18965 functionality. 18966 18967 *Steve Henson* 18968 18969 * Changed obj_dat.pl script so it takes its input and output files on 18970 the command line. This should avoid shell escape redirection problems 18971 under Win32. 18972 18973 *Steve Henson* 18974 18975 * Initial support for certificate extension requests, these are included 18976 in things like Xenroll certificate requests. Included functions to allow 18977 extensions to be obtained and added. 18978 18979 *Steve Henson* 18980 18981 * -crlf option to s_client and s_server for sending newlines as 18982 CRLF (as required by many protocols). 18983 18984 *Bodo Moeller* 18985 18986### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 18987 18988 * Install libRSAglue.a when OpenSSL is built with RSAref. 18989 18990 *Ralf S. Engelschall* 18991 18992 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 18993 18994 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 18995 18996 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 18997 program. 18998 18999 *Steve Henson* 19000 19001 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 19002 DH parameters/keys (q is lost during that conversion, but the resulting 19003 DH parameters contain its length). 19004 19005 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 19006 much faster than DH_generate_parameters (which creates parameters 19007 where `p = 2*q + 1`), and also the smaller q makes DH computations 19008 much more efficient (160-bit exponentiation instead of 1024-bit 19009 exponentiation); so this provides a convenient way to support DHE 19010 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 19011 utter importance to use 19012 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 19013 or 19014 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 19015 when such DH parameters are used, because otherwise small subgroup 19016 attacks may become possible! 19017 19018 *Bodo Moeller* 19019 19020 * Avoid memory leak in i2d_DHparams. 19021 19022 *Bodo Moeller* 19023 19024 * Allow the -k option to be used more than once in the enc program: 19025 this allows the same encrypted message to be read by multiple recipients. 19026 19027 *Steve Henson* 19028 19029 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 19030 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 19031 it will always use the numerical form of the OID, even if it has a short 19032 or long name. 19033 19034 *Steve Henson* 19035 19036 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 19037 method only got called if p,q,dmp1,dmq1,iqmp components were present, 19038 otherwise bn_mod_exp was called. In the case of hardware keys for example 19039 no private key components need be present and it might store extra data 19040 in the RSA structure, which cannot be accessed from bn_mod_exp. 19041 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 19042 private key operations. 19043 19044 *Steve Henson* 19045 19046 * Added support for SPARC Linux. 19047 19048 *Andy Polyakov* 19049 19050 * pem_password_cb function type incompatibly changed from 19051 typedef int pem_password_cb(char *buf, int size, int rwflag); 19052 to 19053 ....(char *buf, int size, int rwflag, void *userdata); 19054 so that applications can pass data to their callbacks: 19055 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 19056 additional void * argument, which is just handed through whenever 19057 the password callback is called. 19058 19059 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 19060 19061 New function SSL_CTX_set_default_passwd_cb_userdata. 19062 19063 Compatibility note: As many C implementations push function arguments 19064 onto the stack in reverse order, the new library version is likely to 19065 interoperate with programs that have been compiled with the old 19066 pem_password_cb definition (PEM_whatever takes some data that 19067 happens to be on the stack as its last argument, and the callback 19068 just ignores this garbage); but there is no guarantee whatsoever that 19069 this will work. 19070 19071 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 19072 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 19073 problems not only on Windows, but also on some Unix platforms. 19074 To avoid problematic command lines, these definitions are now in an 19075 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 19076 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 19077 19078 *Bodo Moeller* 19079 19080 * MIPS III/IV assembler module is reimplemented. 19081 19082 *Andy Polyakov* 19083 19084 * More DES library cleanups: remove references to srand/rand and 19085 delete an unused file. 19086 19087 *Ulf Möller* 19088 19089 * Add support for the free Netwide assembler (NASM) under Win32, 19090 since not many people have MASM (ml) and it can be hard to obtain. 19091 This is currently experimental but it seems to work OK and pass all 19092 the tests. Check out INSTALL.W32 for info. 19093 19094 *Steve Henson* 19095 19096 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 19097 without temporary keys kept an extra copy of the server key, 19098 and connections with temporary keys did not free everything in case 19099 of an error. 19100 19101 *Bodo Moeller* 19102 19103 * New function RSA_check_key and new openssl rsa option -check 19104 for verifying the consistency of RSA keys. 19105 19106 *Ulf Moeller, Bodo Moeller* 19107 19108 * Various changes to make Win32 compile work: 19109 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 19110 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 19111 comparison" warnings. 19112 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 19113 19114 *Steve Henson* 19115 19116 * Add a debugging option to PKCS#5 v2 key generation function: when 19117 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 19118 derived keys are printed to stderr. 19119 19120 *Steve Henson* 19121 19122 * Copy the flags in ASN1_STRING_dup(). 19123 19124 *Roman E. Pavlov <pre@mo.msk.ru>* 19125 19126 * The x509 application mishandled signing requests containing DSA 19127 keys when the signing key was also DSA and the parameters didn't match. 19128 19129 It was supposed to omit the parameters when they matched the signing key: 19130 the verifying software was then supposed to automatically use the CA's 19131 parameters if they were absent from the end user certificate. 19132 19133 Omitting parameters is no longer recommended. The test was also 19134 the wrong way round! This was probably due to unusual behaviour in 19135 EVP_cmp_parameters() which returns 1 if the parameters match. 19136 This meant that parameters were omitted when they *didn't* match and 19137 the certificate was useless. Certificates signed with 'ca' didn't have 19138 this bug. 19139 19140 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 19141 19142 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 19143 The interface is as follows: 19144 Applications can use 19145 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 19146 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 19147 "off" is now the default. 19148 The library internally uses 19149 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 19150 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 19151 to disable memory-checking temporarily. 19152 19153 Some inconsistent states that previously were possible (and were 19154 even the default) are now avoided. 19155 19156 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 19157 with each memory chunk allocated; this is occasionally more helpful 19158 than just having a counter. 19159 19160 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 19161 19162 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 19163 extensions. 19164 19165 *Bodo Moeller* 19166 19167 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 19168 which largely parallels "options", but is for changing API behaviour, 19169 whereas "options" are about protocol behaviour. 19170 Initial "mode" flags are: 19171 19172 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 19173 a single record has been written. 19174 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 19175 retries use the same buffer location. 19176 (But all of the contents must be 19177 copied!) 19178 19179 *Bodo Moeller* 19180 19181 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 19182 worked. 19183 19184 * Fix problems with no-hmac etc. 19185 19186 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 19187 19188 * New functions RSA_get_default_method(), RSA_set_method() and 19189 RSA_get_method(). These allows replacement of RSA_METHODs without having 19190 to mess around with the internals of an RSA structure. 19191 19192 *Steve Henson* 19193 19194 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 19195 Also really enable memory leak checks in openssl.c and in some 19196 test programs. 19197 19198 *Chad C. Mulligan, Bodo Moeller* 19199 19200 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 19201 up the length of negative integers. This has now been simplified to just 19202 store the length when it is first determined and use it later, rather 19203 than trying to keep track of where data is copied and updating it to 19204 point to the end. 19205 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 19206 19207 * Add a new function PKCS7_signatureVerify. This allows the verification 19208 of a PKCS#7 signature but with the signing certificate passed to the 19209 function itself. This contrasts with PKCS7_dataVerify which assumes the 19210 certificate is present in the PKCS#7 structure. This isn't always the 19211 case: certificates can be omitted from a PKCS#7 structure and be 19212 distributed by "out of band" means (such as a certificate database). 19213 19214 *Steve Henson* 19215 19216 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 19217 function prototypes in pem.h, also change util/mkdef.pl to add the 19218 necessary function names. 19219 19220 *Steve Henson* 19221 19222 * mk1mf.pl (used by Windows builds) did not properly read the 19223 options set by Configure in the top level Makefile, and Configure 19224 was not even able to write more than one option correctly. 19225 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 19226 19227 *Bodo Moeller* 19228 19229 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 19230 file to be loaded from a BIO or FILE pointer. The BIO version will 19231 for example allow memory BIOs to contain config info. 19232 19233 *Steve Henson* 19234 19235 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 19236 Whoever hopes to achieve shared-library compatibility across versions 19237 must use this, not the compile-time macro. 19238 (Exercise 0.9.4: Which is the minimum library version required by 19239 such programs?) 19240 Note: All this applies only to multi-threaded programs, others don't 19241 need locks. 19242 19243 *Bodo Moeller* 19244 19245 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 19246 through a BIO pair triggered the default case, i.e. 19247 SSLerr(...,SSL_R_UNKNOWN_STATE). 19248 19249 *Bodo Moeller* 19250 19251 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 19252 can use the SSL library even if none of the specific BIOs is 19253 appropriate. 19254 19255 *Bodo Moeller* 19256 19257 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 19258 for the encoded length. 19259 19260 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 19261 19262 * Add initial documentation of the X509V3 functions. 19263 19264 *Steve Henson* 19265 19266 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 19267 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 19268 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 19269 secure PKCS#8 private key format with a high iteration count. 19270 19271 *Steve Henson* 19272 19273 * Fix determination of Perl interpreter: A perl or perl5 19274 *directory* in $PATH was also accepted as the interpreter. 19275 19276 *Ralf S. Engelschall* 19277 19278 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 19279 wrong with it but it was very old and did things like calling 19280 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 19281 unusual formatting. 19282 19283 *Steve Henson* 19284 19285 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 19286 to use the new extension code. 19287 19288 *Steve Henson* 19289 19290 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 19291 with macros. This should make it easier to change their form, add extra 19292 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 19293 constant. 19294 19295 *Steve Henson* 19296 19297 * Add to configuration table a new entry that can specify an alternative 19298 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 19299 according to Mark Crispin <MRC@Panda.COM>. 19300 19301 *Bodo Moeller* 19302 19303 * DES CBC did not update the IV. Weird. 19304 19305 *Ben Laurie* 19306lse 19307 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 19308 Changing the behaviour of the former might break existing programs -- 19309 where IV updating is needed, des_ncbc_encrypt can be used. 19310ndif 19311 19312 * When bntest is run from "make test" it drives bc to check its 19313 calculations, as well as internally checking them. If an internal check 19314 fails, it needs to cause bc to give a non-zero result or make test carries 19315 on without noticing the failure. Fixed. 19316 19317 *Ben Laurie* 19318 19319 * DES library cleanups. 19320 19321 *Ulf Möller* 19322 19323 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 19324 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 19325 ciphers. NOTE: although the key derivation function has been verified 19326 against some published test vectors it has not been extensively tested 19327 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 19328 of v2.0. 19329 19330 *Steve Henson* 19331 19332 * Instead of "mkdir -p", which is not fully portable, use new 19333 Perl script "util/mkdir-p.pl". 19334 19335 *Bodo Moeller* 19336 19337 * Rewrite the way password based encryption (PBE) is handled. It used to 19338 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 19339 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 19340 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 19341 the 'parameter' field of the AlgorithmIdentifier is passed to the 19342 underlying key generation function so it must do its own ASN1 parsing. 19343 This has also changed the EVP_PBE_CipherInit() function which now has a 19344 'parameter' argument instead of literal salt and iteration count values 19345 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 19346 19347 *Steve Henson* 19348 19349 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 19350 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 19351 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 19352 KEY" because this clashed with PKCS#8 unencrypted string. Since this 19353 value was just used as a "magic string" and not used directly its 19354 value doesn't matter. 19355 19356 *Steve Henson* 19357 19358 * Introduce some semblance of const correctness to BN. Shame C doesn't 19359 support mutable. 19360 19361 *Ben Laurie* 19362 19363 * "linux-sparc64" configuration (ultrapenguin). 19364 19365 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 19366 "linux-sparc" configuration. 19367 19368 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 19369 19370 * config now generates no-xxx options for missing ciphers. 19371 19372 *Ulf Möller* 19373 19374 * Support the EBCDIC character set (work in progress). 19375 File ebcdic.c not yet included because it has a different license. 19376 19377 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 19378 19379 * Support BS2000/OSD-POSIX. 19380 19381 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 19382 19383 * Make callbacks for key generation use `void *` instead of `char *`. 19384 19385 *Ben Laurie* 19386 19387 * Make S/MIME samples compile (not yet tested). 19388 19389 *Ben Laurie* 19390 19391 * Additional typesafe stacks. 19392 19393 *Ben Laurie* 19394 19395 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 19396 19397 *Bodo Moeller* 19398 19399### Changes between 0.9.3 and 0.9.3a [29 May 1999] 19400 19401 * New configuration variant "sco5-gcc". 19402 19403 * Updated some demos. 19404 19405 *Sean O Riordain, Wade Scholine* 19406 19407 * Add missing BIO_free at exit of pkcs12 application. 19408 19409 *Wu Zhigang* 19410 19411 * Fix memory leak in conf.c. 19412 19413 *Steve Henson* 19414 19415 * Updates for Win32 to assembler version of MD5. 19416 19417 *Steve Henson* 19418 19419 * Set #! path to perl in `apps/der_chop` to where we found it 19420 instead of using a fixed path. 19421 19422 *Bodo Moeller* 19423 19424 * SHA library changes for irix64-mips4-cc. 19425 19426 *Andy Polyakov* 19427 19428 * Improvements for VMS support. 19429 19430 *Richard Levitte* 19431 19432### Changes between 0.9.2b and 0.9.3 [24 May 1999] 19433 19434 * Bignum library bug fix. IRIX 6 passes "make test" now! 19435 This also avoids the problems with SC4.2 and unpatched SC5. 19436 19437 *Andy Polyakov <appro@fy.chalmers.se>* 19438 19439 * New functions sk_num, sk_value and sk_set to replace the previous macros. 19440 These are required because of the typesafe stack would otherwise break 19441 existing code. If old code used a structure member which used to be STACK 19442 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 19443 sk_num or sk_value it would produce an error because the num, data members 19444 are not present in STACK_OF. Now it just produces a warning. sk_set 19445 replaces the old method of assigning a value to sk_value 19446 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 19447 that does this will no longer work (and should use sk_set instead) but 19448 this could be regarded as a "questionable" behaviour anyway. 19449 19450 *Steve Henson* 19451 19452 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 19453 correctly handle encrypted S/MIME data. 19454 19455 *Steve Henson* 19456 19457 * Change type of various DES function arguments from des_cblock 19458 (which means, in function argument declarations, pointer to char) 19459 to des_cblock * (meaning pointer to array with 8 char elements), 19460 which allows the compiler to do more typechecking; it was like 19461 that back in SSLeay, but with lots of ugly casts. 19462 19463 Introduce new type const_des_cblock. 19464 19465 *Bodo Moeller* 19466 19467 * Reorganise the PKCS#7 library and get rid of some of the more obvious 19468 problems: find RecipientInfo structure that matches recipient certificate 19469 and initialise the ASN1 structures properly based on passed cipher. 19470 19471 *Steve Henson* 19472 19473 * Belatedly make the BN tests actually check the results. 19474 19475 *Ben Laurie* 19476 19477 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 19478 to and from BNs: it was completely broken. New compilation option 19479 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 19480 key elements as negative integers. 19481 19482 *Steve Henson* 19483 19484 * Reorganize and speed up MD5. 19485 19486 *Andy Polyakov <appro@fy.chalmers.se>* 19487 19488 * VMS support. 19489 19490 *Richard Levitte <richard@levitte.org>* 19491 19492 * New option -out to asn1parse to allow the parsed structure to be 19493 output to a file. This is most useful when combined with the -strparse 19494 option to examine the output of things like OCTET STRINGS. 19495 19496 *Steve Henson* 19497 19498 * Make SSL library a little more fool-proof by not requiring any longer 19499 that `SSL_set_{accept,connect}_state` be called before 19500 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 19501 in many applications because usually everything *appeared* to work as 19502 intended anyway -- now it really works as intended). 19503 19504 *Bodo Moeller* 19505 19506 * Move openssl.cnf out of lib/. 19507 19508 *Ulf Möller* 19509 19510 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 19511 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 19512 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 19513 19514 *Ralf S. Engelschall* 19515 19516 * Various fixes to the EVP and PKCS#7 code. It may now be able to 19517 handle PKCS#7 enveloped data properly. 19518 19519 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 19520 19521 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 19522 copying pointers. The cert_st handling is changed by this in 19523 various ways (and thus what used to be known as ctx->default_cert 19524 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 19525 any longer when s->cert does not give us what we need). 19526 ssl_cert_instantiate becomes obsolete by this change. 19527 As soon as we've got the new code right (possibly it already is?), 19528 we have solved a couple of bugs of the earlier code where s->cert 19529 was used as if it could not have been shared with other SSL structures. 19530 19531 Note that using the SSL API in certain dirty ways now will result 19532 in different behaviour than observed with earlier library versions: 19533 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 19534 does not influence s as it used to. 19535 19536 In order to clean up things more thoroughly, inside SSL_SESSION 19537 we don't use CERT any longer, but a new structure SESS_CERT 19538 that holds per-session data (if available); currently, this is 19539 the peer's certificate chain and, for clients, the server's certificate 19540 and temporary key. CERT holds only those values that can have 19541 meaningful defaults in an SSL_CTX. 19542 19543 *Bodo Moeller* 19544 19545 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 19546 from the internal representation. Various PKCS#7 fixes: remove some 19547 evil casts and set the enc_dig_alg field properly based on the signing 19548 key type. 19549 19550 *Steve Henson* 19551 19552 * Allow PKCS#12 password to be set from the command line or the 19553 environment. Let 'ca' get its config file name from the environment 19554 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 19555 and 'x509'). 19556 19557 *Steve Henson* 19558 19559 * Allow certificate policies extension to use an IA5STRING for the 19560 organization field. This is contrary to the PKIX definition but 19561 VeriSign uses it and IE5 only recognises this form. Document 'x509' 19562 extension option. 19563 19564 *Steve Henson* 19565 19566 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 19567 without disallowing inline assembler and the like for non-pedantic builds. 19568 19569 *Ben Laurie* 19570 19571 * Support Borland C++ builder. 19572 19573 *Janez Jere <jj@void.si>, modified by Ulf Möller* 19574 19575 * Support Mingw32. 19576 19577 *Ulf Möller* 19578 19579 * SHA-1 cleanups and performance enhancements. 19580 19581 *Andy Polyakov <appro@fy.chalmers.se>* 19582 19583 * Sparc v8plus assembler for the bignum library. 19584 19585 *Andy Polyakov <appro@fy.chalmers.se>* 19586 19587 * Accept any -xxx and +xxx compiler options in Configure. 19588 19589 *Ulf Möller* 19590 19591 * Update HPUX configuration. 19592 19593 *Anonymous* 19594 19595 * Add missing `sk_<type>_unshift()` function to safestack.h 19596 19597 *Ralf S. Engelschall* 19598 19599 * New function SSL_CTX_use_certificate_chain_file that sets the 19600 "extra_cert"s in addition to the certificate. (This makes sense 19601 only for "PEM" format files, as chains as a whole are not 19602 DER-encoded.) 19603 19604 *Bodo Moeller* 19605 19606 * Support verify_depth from the SSL API. 19607 x509_vfy.c had what can be considered an off-by-one-error: 19608 Its depth (which was not part of the external interface) 19609 was actually counting the number of certificates in a chain; 19610 now it really counts the depth. 19611 19612 *Bodo Moeller* 19613 19614 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 19615 instead of X509err, which often resulted in confusing error 19616 messages since the error codes are not globally unique 19617 (e.g. an alleged error in ssl3_accept when a certificate 19618 didn't match the private key). 19619 19620 * New function SSL_CTX_set_session_id_context that allows to set a default 19621 value (so that you don't need SSL_set_session_id_context for each 19622 connection using the SSL_CTX). 19623 19624 *Bodo Moeller* 19625 19626 * OAEP decoding bug fix. 19627 19628 *Ulf Möller* 19629 19630 * Support INSTALL_PREFIX for package builders, as proposed by 19631 David Harris. 19632 19633 *Bodo Moeller* 19634 19635 * New Configure options "threads" and "no-threads". For systems 19636 where the proper compiler options are known (currently Solaris 19637 and Linux), "threads" is the default. 19638 19639 *Bodo Moeller* 19640 19641 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 19642 19643 *Bodo Moeller* 19644 19645 * Install various scripts to $(OPENSSLDIR)/misc, not to 19646 $(INSTALLTOP)/bin -- they shouldn't clutter directories 19647 such as /usr/local/bin. 19648 19649 *Bodo Moeller* 19650 19651 * "make linux-shared" to build shared libraries. 19652 19653 *Niels Poppe <niels@netbox.org>* 19654 19655 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 19656 19657 *Ulf Möller* 19658 19659 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 19660 extension adding in x509 utility. 19661 19662 *Steve Henson* 19663 19664 * Remove NOPROTO sections and error code comments. 19665 19666 *Ulf Möller* 19667 19668 * Partial rewrite of the DEF file generator to now parse the ANSI 19669 prototypes. 19670 19671 *Steve Henson* 19672 19673 * New Configure options --prefix=DIR and --openssldir=DIR. 19674 19675 *Ulf Möller* 19676 19677 * Complete rewrite of the error code script(s). It is all now handled 19678 by one script at the top level which handles error code gathering, 19679 header rewriting and C source file generation. It should be much better 19680 than the old method: it now uses a modified version of Ulf's parser to 19681 read the ANSI prototypes in all header files (thus the old K&R definitions 19682 aren't needed for error creation any more) and do a better job of 19683 translating function codes into names. The old 'ASN1 error code embedded 19684 in a comment' is no longer necessary and it doesn't use .err files which 19685 have now been deleted. Also the error code call doesn't have to appear all 19686 on one line (which resulted in some large lines...). 19687 19688 *Steve Henson* 19689 19690 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 19691 19692 *Bodo Moeller* 19693 19694 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 19695 0 (which usually indicates a closed connection), but continue reading. 19696 19697 *Bodo Moeller* 19698 19699 * Fix some race conditions. 19700 19701 *Bodo Moeller* 19702 19703 * Add support for CRL distribution points extension. Add Certificate 19704 Policies and CRL distribution points documentation. 19705 19706 *Steve Henson* 19707 19708 * Move the autogenerated header file parts to crypto/opensslconf.h. 19709 19710 *Ulf Möller* 19711 19712 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 19713 8 of keying material. Merlin has also confirmed interop with this fix 19714 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 19715 19716 *Merlin Hughes <merlin@baltimore.ie>* 19717 19718 * Fix lots of warnings. 19719 19720 *Richard Levitte <levitte@stacken.kth.se>* 19721 19722 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 19723 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 19724 19725 *Richard Levitte <levitte@stacken.kth.se>* 19726 19727 * Fix problems with sizeof(long) == 8. 19728 19729 *Andy Polyakov <appro@fy.chalmers.se>* 19730 19731 * Change functions to ANSI C. 19732 19733 *Ulf Möller* 19734 19735 * Fix typos in error codes. 19736 19737 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 19738 19739 * Remove defunct assembler files from Configure. 19740 19741 *Ulf Möller* 19742 19743 * SPARC v8 assembler BIGNUM implementation. 19744 19745 *Andy Polyakov <appro@fy.chalmers.se>* 19746 19747 * Support for Certificate Policies extension: both print and set. 19748 Various additions to support the r2i method this uses. 19749 19750 *Steve Henson* 19751 19752 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 19753 return a const string when you are expecting an allocated buffer. 19754 19755 *Ben Laurie* 19756 19757 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 19758 types DirectoryString and DisplayText. 19759 19760 *Steve Henson* 19761 19762 * Add code to allow r2i extensions to access the configuration database, 19763 add an LHASH database driver and add several ctx helper functions. 19764 19765 *Steve Henson* 19766 19767 * Fix an evil bug in bn_expand2() which caused various BN functions to 19768 fail when they extended the size of a BIGNUM. 19769 19770 *Steve Henson* 19771 19772 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 19773 support typesafe stack. 19774 19775 *Steve Henson* 19776 19777 * Fix typo in SSL_[gs]et_options(). 19778 19779 *Nils Frostberg <nils@medcom.se>* 19780 19781 * Delete various functions and files that belonged to the (now obsolete) 19782 old X509V3 handling code. 19783 19784 *Steve Henson* 19785 19786 * New Configure option "rsaref". 19787 19788 *Ulf Möller* 19789 19790 * Don't auto-generate pem.h. 19791 19792 *Bodo Moeller* 19793 19794 * Introduce type-safe ASN.1 SETs. 19795 19796 *Ben Laurie* 19797 19798 * Convert various additional casted stacks to type-safe STACK_OF() variants. 19799 19800 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 19801 19802 * Introduce type-safe STACKs. This will almost certainly break lots of code 19803 that links with OpenSSL (well at least cause lots of warnings), but fear 19804 not: the conversion is trivial, and it eliminates loads of evil casts. A 19805 few STACKed things have been converted already. Feel free to convert more. 19806 In the fullness of time, I'll do away with the STACK type altogether. 19807 19808 *Ben Laurie* 19809 19810 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 19811 specified in `<certfile>` by updating the entry in the index.txt file. 19812 This way one no longer has to edit the index.txt file manually for 19813 revoking a certificate. The -revoke option does the gory details now. 19814 19815 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 19816 19817 * Fix `openssl crl -noout -text` combination where `-noout` killed the 19818 `-text` option at all and this way the `-noout -text` combination was 19819 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 19820 19821 *Ralf S. Engelschall* 19822 19823 * Make sure a corresponding plain text error message exists for the 19824 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 19825 verify callback function determined that a certificate was revoked. 19826 19827 *Ralf S. Engelschall* 19828 19829 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 19830 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 19831 all available ciphers including rc5, which was forgotten until now. 19832 In order to let the testing shell script know which algorithms 19833 are available, a new (up to now undocumented) command 19834 `openssl list-cipher-commands` is used. 19835 19836 *Bodo Moeller* 19837 19838 * Bugfix: s_client occasionally would sleep in select() when 19839 it should have checked SSL_pending() first. 19840 19841 *Bodo Moeller* 19842 19843 * New functions DSA_do_sign and DSA_do_verify to provide access to 19844 the raw DSA values prior to ASN.1 encoding. 19845 19846 *Ulf Möller* 19847 19848 * Tweaks to Configure 19849 19850 *Niels Poppe <niels@netbox.org>* 19851 19852 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 19853 yet... 19854 19855 *Steve Henson* 19856 19857 * New variables $(RANLIB) and $(PERL) in the Makefiles. 19858 19859 *Ulf Möller* 19860 19861 * New config option to avoid instructions that are illegal on the 80386. 19862 The default code is faster, but requires at least a 486. 19863 19864 *Ulf Möller* 19865 19866 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 19867 SSL2_SERVER_VERSION (not used at all) macros, which are now the 19868 same as SSL2_VERSION anyway. 19869 19870 *Bodo Moeller* 19871 19872 * New "-showcerts" option for s_client. 19873 19874 *Bodo Moeller* 19875 19876 * Still more PKCS#12 integration. Add pkcs12 application to openssl 19877 application. Various cleanups and fixes. 19878 19879 *Steve Henson* 19880 19881 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 19882 modify error routines to work internally. Add error codes and PBE init 19883 to library startup routines. 19884 19885 *Steve Henson* 19886 19887 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 19888 packing functions to asn1 and evp. Changed function names and error 19889 codes along the way. 19890 19891 *Steve Henson* 19892 19893 * PKCS12 integration: and so it begins... First of several patches to 19894 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 19895 objects to objects.h 19896 19897 *Steve Henson* 19898 19899 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 19900 and display support for Thawte strong extranet extension. 19901 19902 *Steve Henson* 19903 19904 * Add LinuxPPC support. 19905 19906 *Jeff Dubrule <igor@pobox.org>* 19907 19908 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 19909 bn_div_words in alpha.s. 19910 19911 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 19912 19913 * Make sure the RSA OAEP test is skipped under -DRSAref because 19914 OAEP isn't supported when OpenSSL is built with RSAref. 19915 19916 *Ulf Moeller <ulf@fitug.de>* 19917 19918 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 19919 so they no longer are missing under -DNOPROTO. 19920 19921 *Soren S. Jorvang <soren@t.dk>* 19922 19923### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 19924 19925 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 19926 doesn't work when the session is reused. Coming soon! 19927 19928 *Ben Laurie* 19929 19930 * Fix a security hole, that allows sessions to be reused in the wrong 19931 context thus bypassing client cert protection! All software that uses 19932 client certs and session caches in multiple contexts NEEDS PATCHING to 19933 allow session reuse! A fuller solution is in the works. 19934 19935 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 19936 19937 * Some more source tree cleanups (removed obsolete files 19938 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 19939 permission on "config" script to be executable) and a fix for the INSTALL 19940 document. 19941 19942 *Ulf Moeller <ulf@fitug.de>* 19943 19944 * Remove some legacy and erroneous uses of malloc, free instead of 19945 Malloc, Free. 19946 19947 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 19948 19949 * Make rsa_oaep_test return non-zero on error. 19950 19951 *Ulf Moeller <ulf@fitug.de>* 19952 19953 * Add support for native Solaris shared libraries. Configure 19954 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 19955 if someone would make that last step automatic. 19956 19957 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 19958 19959 * ctx_size was not built with the right compiler during "make links". Fixed. 19960 19961 *Ben Laurie* 19962 19963 * Change the meaning of 'ALL' in the cipher list. It now means "everything 19964 except NULL ciphers". This means the default cipher list will no longer 19965 enable NULL ciphers. They need to be specifically enabled e.g. with 19966 the string "DEFAULT:eNULL". 19967 19968 *Steve Henson* 19969 19970 * Fix to RSA private encryption routines: if p < q then it would 19971 occasionally produce an invalid result. This will only happen with 19972 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 19973 19974 *Steve Henson* 19975 19976 * Be less restrictive and allow also `perl util/perlpath.pl 19977 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 19978 because this way one can also use an interpreter named `perl5` (which is 19979 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 19980 installed as `perl`). 19981 19982 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19983 19984 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 19985 19986 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19987 19988 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 19989 advapi32.lib to Win32 build and change the pem test comparison 19990 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 19991 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 19992 and crypto/des/ede_cbcm_enc.c. 19993 19994 *Steve Henson* 19995 19996 * DES quad checksum was broken on big-endian architectures. Fixed. 19997 19998 *Ben Laurie* 19999 20000 * Comment out two functions in bio.h that aren't implemented. Fix up the 20001 Win32 test batch file so it (might) work again. The Win32 test batch file 20002 is horrible: I feel ill.... 20003 20004 *Steve Henson* 20005 20006 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 20007 in e_os.h. Audit of header files to check ANSI and non ANSI 20008 sections: 10 functions were absent from non ANSI section and not exported 20009 from Windows DLLs. Fixed up libeay.num for new functions. 20010 20011 *Steve Henson* 20012 20013 * Make `openssl version` output lines consistent. 20014 20015 *Ralf S. Engelschall* 20016 20017 * Fix Win32 symbol export lists for BIO functions: Added 20018 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 20019 to ms/libeay{16,32}.def. 20020 20021 *Ralf S. Engelschall* 20022 20023 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 20024 fine under Unix and passes some trivial tests I've now added. But the 20025 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 20026 added to make sure no one expects that this stuff really works in the 20027 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 20028 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 20029 openssl_bio.xs. 20030 20031 *Ralf S. Engelschall* 20032 20033 * Fix the generation of two part addresses in perl. 20034 20035 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 20036 20037 * Add config entry for Linux on MIPS. 20038 20039 *John Tobey <jtobey@channel1.com>* 20040 20041 * Make links whenever Configure is run, unless we are on Windoze. 20042 20043 *Ben Laurie* 20044 20045 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 20046 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 20047 in CRLs. 20048 20049 *Steve Henson* 20050 20051 * Add a useful kludge to allow package maintainers to specify compiler and 20052 other platforms details on the command line without having to patch the 20053 Configure script every time: One now can use 20054 `perl Configure <id>:<details>`, 20055 i.e. platform ids are allowed to have details appended 20056 to them (separated by colons). This is treated as there would be a static 20057 pre-configured entry in Configure's %table under key `<id>` with value 20058 `<details>` and `perl Configure <id>` is called. So, when you want to 20059 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 20060 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 20061 now, which overrides the FreeBSD-elf entry on-the-fly. 20062 20063 *Ralf S. Engelschall* 20064 20065 * Disable new TLS1 ciphersuites by default: they aren't official yet. 20066 20067 *Ben Laurie* 20068 20069 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 20070 on the `perl Configure ...` command line. This way one can compile 20071 OpenSSL libraries with Position Independent Code (PIC) which is needed 20072 for linking it into DSOs. 20073 20074 *Ralf S. Engelschall* 20075 20076 * Remarkably, export ciphers were totally broken and no-one had noticed! 20077 Fixed. 20078 20079 *Ben Laurie* 20080 20081 * Cleaned up the LICENSE document: The official contact for any license 20082 questions now is the OpenSSL core team under openssl-core@openssl.org. 20083 And add a paragraph about the dual-license situation to make sure people 20084 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 20085 to the OpenSSL toolkit. 20086 20087 *Ralf S. Engelschall* 20088 20089 * General source tree makefile cleanups: Made `making xxx in yyy...` 20090 display consistent in the source tree and replaced `/bin/rm` by `rm`. 20091 Additionally cleaned up the `make links` target: Remove unnecessary 20092 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 20093 to speed processing and no longer clutter the display with confusing 20094 stuff. Instead only the actually done links are displayed. 20095 20096 *Ralf S. Engelschall* 20097 20098 * Permit null encryption ciphersuites, used for authentication only. It used 20099 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 20100 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 20101 encryption. 20102 20103 *Ben Laurie* 20104 20105 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 20106 signed attributes when verifying signatures (this would break them), 20107 the detached data encoding was wrong and public keys obtained using 20108 X509_get_pubkey() weren't freed. 20109 20110 *Steve Henson* 20111 20112 * Add text documentation for the BUFFER functions. Also added a work around 20113 to a Win95 console bug. This was triggered by the password read stuff: the 20114 last character typed gets carried over to the next fread(). If you were 20115 generating a new cert request using 'req' for example then the last 20116 character of the passphrase would be CR which would then enter the first 20117 field as blank. 20118 20119 *Steve Henson* 20120 20121 * Added the new 'Includes OpenSSL Cryptography Software' button as 20122 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 20123 button and can be used by applications based on OpenSSL to show the 20124 relationship to the OpenSSL project. 20125 20126 *Ralf S. Engelschall* 20127 20128 * Remove confusing variables in function signatures in files 20129 ssl/ssl_lib.c and ssl/ssl.h. 20130 20131 *Lennart Bong <lob@kulthea.stacken.kth.se>* 20132 20133 * Don't install bss_file.c under PREFIX/include/ 20134 20135 *Lennart Bong <lob@kulthea.stacken.kth.se>* 20136 20137 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 20138 functions that return function pointers and has support for NT specific 20139 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 20140 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 20141 unsigned to signed types: this was killing the Win32 compile. 20142 20143 *Steve Henson* 20144 20145 * Add new certificate file to stack functions, 20146 SSL_add_dir_cert_subjects_to_stack() and 20147 SSL_add_file_cert_subjects_to_stack(). These largely supplant 20148 SSL_load_client_CA_file(), and can be used to add multiple certs easily 20149 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 20150 This means that Apache-SSL and similar packages don't have to mess around 20151 to add as many CAs as they want to the preferred list. 20152 20153 *Ben Laurie* 20154 20155 * Experiment with doxygen documentation. Currently only partially applied to 20156 ssl/ssl_lib.c. 20157 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 20158 openssl.doxy as the configuration file. 20159 20160 *Ben Laurie* 20161 20162 * Get rid of remaining C++-style comments which strict C compilers hate. 20163 20164 *Ralf S. Engelschall, pointed out by Carlos Amengual* 20165 20166 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 20167 compiled in by default: it has problems with large keys. 20168 20169 *Steve Henson* 20170 20171 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 20172 DH private keys and/or callback functions which directly correspond to 20173 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 20174 is needed for applications which have to configure certificates on a 20175 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 20176 (e.g. s_server). 20177 For the RSA certificate situation is makes no difference, but 20178 for the DSA certificate situation this fixes the "no shared cipher" 20179 problem where the OpenSSL cipher selection procedure failed because the 20180 temporary keys were not overtaken from the context and the API provided 20181 no way to reconfigure them. 20182 The new functions now let applications reconfigure the stuff and they 20183 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 20184 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 20185 non-public-API function ssl_cert_instantiate() is used as a helper 20186 function and also to reduce code redundancy inside ssl_rsa.c. 20187 20188 *Ralf S. Engelschall* 20189 20190 * Move s_server -dcert and -dkey options out of the undocumented feature 20191 area because they are useful for the DSA situation and should be 20192 recognized by the users. 20193 20194 *Ralf S. Engelschall* 20195 20196 * Fix the cipher decision scheme for export ciphers: the export bits are 20197 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 20198 SSL_EXP_MASK. So, the original variable has to be used instead of the 20199 already masked variable. 20200 20201 *Richard Levitte <levitte@stacken.kth.se>* 20202 20203 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 20204 20205 *Richard Levitte <levitte@stacken.kth.se>* 20206 20207 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 20208 from `int` to `unsigned int` because it is a length and initialized by 20209 EVP_DigestFinal() which expects an `unsigned int *`. 20210 20211 *Richard Levitte <levitte@stacken.kth.se>* 20212 20213 * Don't hard-code path to Perl interpreter on shebang line of Configure 20214 script. Instead use the usual Shell->Perl transition trick. 20215 20216 *Ralf S. Engelschall* 20217 20218 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 20219 (in addition to RSA certificates) to match the behaviour of `openssl dsa 20220 -noout -modulus` as it's already the case for `openssl rsa -noout 20221 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 20222 currently the public key is printed (a decision which was already done by 20223 `openssl dsa -modulus` in the past) which serves a similar purpose. 20224 Additionally the NO_RSA no longer completely removes the whole -modulus 20225 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 20226 now, too. 20227 20228 *Ralf S. Engelschall* 20229 20230 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 20231 BIO. See the source (crypto/evp/bio_ok.c) for more info. 20232 20233 *Arne Ansper <arne@ats.cyber.ee>* 20234 20235 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 20236 to be added. Now both 'req' and 'ca' can use new objects defined in the 20237 config file. 20238 20239 *Steve Henson* 20240 20241 * Add cool BIO that does syslog (or event log on NT). 20242 20243 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 20244 20245 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 20246 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 20247 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 20248 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 20249 20250 *Ben Laurie* 20251 20252 * Add preliminary config info for new extension code. 20253 20254 *Steve Henson* 20255 20256 * Make RSA_NO_PADDING really use no padding. 20257 20258 *Ulf Moeller <ulf@fitug.de>* 20259 20260 * Generate errors when private/public key check is done. 20261 20262 *Ben Laurie* 20263 20264 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 20265 for some CRL extensions and new objects added. 20266 20267 *Steve Henson* 20268 20269 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 20270 key usage extension and fuller support for authority key id. 20271 20272 *Steve Henson* 20273 20274 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 20275 padding method for RSA, which is recommended for new applications in PKCS 20276 #1 v2.0 (RFC 2437, October 1998). 20277 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 20278 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 20279 against Bleichbacher's attack on RSA. 20280 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 20281 Ben Laurie* 20282 20283 * Updates to the new SSL compression code 20284 20285 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 20286 20287 * Fix so that the version number in the master secret, when passed 20288 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 20289 (because the server will not accept higher), that the version number 20290 is 0x03,0x01, not 0x03,0x00 20291 20292 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 20293 20294 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 20295 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 20296 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 20297 20298 *Steve Henson* 20299 20300 * Support for RAW extensions where an arbitrary extension can be 20301 created by including its DER encoding. See `apps/openssl.cnf` for 20302 an example. 20303 20304 *Steve Henson* 20305 20306 * Make sure latest Perl versions don't interpret some generated C array 20307 code as Perl array code in the crypto/err/err_genc.pl script. 20308 20309 *Lars Weber <3weber@informatik.uni-hamburg.de>* 20310 20311 * Modify ms/do_ms.bat to not generate assembly language makefiles since 20312 not many people have the assembler. Various Win32 compilation fixes and 20313 update to the INSTALL.W32 file with (hopefully) more accurate Win32 20314 build instructions. 20315 20316 *Steve Henson* 20317 20318 * Modify configure script 'Configure' to automatically create crypto/date.h 20319 file under Win32 and also build pem.h from pem.org. New script 20320 util/mkfiles.pl to create the MINFO file on environments that can't do a 20321 'make files': perl util/mkfiles.pl >MINFO should work. 20322 20323 *Steve Henson* 20324 20325 * Major rework of DES function declarations, in the pursuit of correctness 20326 and purity. As a result, many evil casts evaporated, and some weirdness, 20327 too. You may find this causes warnings in your code. Zapping your evil 20328 casts will probably fix them. Mostly. 20329 20330 *Ben Laurie* 20331 20332 * Fix for a typo in asn1.h. Bug fix to object creation script 20333 obj_dat.pl. It considered a zero in an object definition to mean 20334 "end of object": none of the objects in objects.h have any zeros 20335 so it wasn't spotted. 20336 20337 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 20338 20339 * Add support for Triple DES Cipher Block Chaining with Output Feedback 20340 Masking (CBCM). In the absence of test vectors, the best I have been able 20341 to do is check that the decrypt undoes the encrypt, so far. Send me test 20342 vectors if you have them. 20343 20344 *Ben Laurie* 20345 20346 * Correct calculation of key length for export ciphers (too much space was 20347 allocated for null ciphers). This has not been tested! 20348 20349 *Ben Laurie* 20350 20351 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 20352 message is now correct (it understands "crypto" and "ssl" on its 20353 command line). There is also now an "update" option. This will update 20354 the util/ssleay.num and util/libeay.num files with any new functions. 20355 If you do a: 20356 perl util/mkdef.pl crypto ssl update 20357 it will update them. 20358 20359 *Steve Henson* 20360 20361 * Overhauled the Perl interface: 20362 - ported BN stuff to OpenSSL's different BN library 20363 - made the perl/ source tree CVS-aware 20364 - renamed the package from SSLeay to OpenSSL (the files still contain 20365 their history because I've copied them in the repository) 20366 - removed obsolete files (the test scripts will be replaced 20367 by better Test::Harness variants in the future) 20368 20369 *Ralf S. Engelschall* 20370 20371 * First cut for a very conservative source tree cleanup: 20372 1. merge various obsolete readme texts into doc/ssleay.txt 20373 where we collect the old documents and readme texts. 20374 2. remove the first part of files where I'm already sure that we no 20375 longer need them because of three reasons: either they are just temporary 20376 files which were left by Eric or they are preserved original files where 20377 I've verified that the diff is also available in the CVS via "cvs diff 20378 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 20379 the crypto/md/ stuff). 20380 20381 *Ralf S. Engelschall* 20382 20383 * More extension code. Incomplete support for subject and issuer alt 20384 name, issuer and authority key id. Change the i2v function parameters 20385 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 20386 what that's for :-) Fix to ASN1 macro which messed up 20387 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 20388 20389 *Steve Henson* 20390 20391 * Preliminary support for ENUMERATED type. This is largely copied from the 20392 INTEGER code. 20393 20394 *Steve Henson* 20395 20396 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 20397 20398 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 20399 20400 * Make sure `make rehash` target really finds the `openssl` program. 20401 20402 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 20403 20404 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 20405 like to hear about it if this slows down other processors. 20406 20407 *Ben Laurie* 20408 20409 * Add CygWin32 platform information to Configure script. 20410 20411 *Alan Batie <batie@aahz.jf.intel.com>* 20412 20413 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 20414 20415 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 20416 20417 * New program nseq to manipulate netscape certificate sequences 20418 20419 *Steve Henson* 20420 20421 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 20422 few typos. 20423 20424 *Steve Henson* 20425 20426 * Fixes to BN code. Previously the default was to define BN_RECURSION 20427 but the BN code had some problems that would cause failures when 20428 doing certificate verification and some other functions. 20429 20430 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 20431 20432 * Add ASN1 and PEM code to support netscape certificate sequences. 20433 20434 *Steve Henson* 20435 20436 * Add ASN1 and PEM code to support netscape certificate sequences. 20437 20438 *Steve Henson* 20439 20440 * Add several PKIX and private extended key usage OIDs. 20441 20442 *Steve Henson* 20443 20444 * Modify the 'ca' program to handle the new extension code. Modify 20445 openssl.cnf for new extension format, add comments. 20446 20447 *Steve Henson* 20448 20449 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 20450 and add a sample to openssl.cnf so req -x509 now adds appropriate 20451 CA extensions. 20452 20453 *Steve Henson* 20454 20455 * Continued X509 V3 changes. Add to other makefiles, integrate with the 20456 error code, add initial support to X509_print() and x509 application. 20457 20458 *Steve Henson* 20459 20460 * Takes a deep breath and start adding X509 V3 extension support code. Add 20461 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 20462 stuff is currently isolated and isn't even compiled yet. 20463 20464 *Steve Henson* 20465 20466 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 20467 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 20468 Removed the versions check from X509 routines when loading extensions: 20469 this allows certain broken certificates that don't set the version 20470 properly to be processed. 20471 20472 *Steve Henson* 20473 20474 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 20475 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 20476 can still be regenerated with "make depend". 20477 20478 *Ben Laurie* 20479 20480 * Spelling mistake in C version of CAST-128. 20481 20482 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 20483 20484 * Changes to the error generation code. The perl script err-code.pl 20485 now reads in the old error codes and retains the old numbers, only 20486 adding new ones if necessary. It also only changes the .err files if new 20487 codes are added. The makefiles have been modified to only insert errors 20488 when needed (to avoid needlessly modifying header files). This is done 20489 by only inserting errors if the .err file is newer than the auto generated 20490 C file. To rebuild all the error codes from scratch (the old behaviour) 20491 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 20492 or delete all the .err files. 20493 20494 *Steve Henson* 20495 20496 * CAST-128 was incorrectly implemented for short keys. The C version has 20497 been fixed, but is untested. The assembler versions are also fixed, but 20498 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 20499 to regenerate it if needed. 20500 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 20501 Hagino <itojun@kame.net>* 20502 20503 * File was opened incorrectly in randfile.c. 20504 20505 *Ulf Möller <ulf@fitug.de>* 20506 20507 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 20508 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 20509 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 20510 al: it's just almost always a UTCTime. Note this patch adds new error 20511 codes so do a "make errors" if there are problems. 20512 20513 *Steve Henson* 20514 20515 * Correct Linux 1 recognition in config. 20516 20517 *Ulf Möller <ulf@fitug.de>* 20518 20519 * Remove pointless MD5 hash when using DSA keys in ca. 20520 20521 *Anonymous <nobody@replay.com>* 20522 20523 * Generate an error if given an empty string as a cert directory. Also 20524 generate an error if handed NULL (previously returned 0 to indicate an 20525 error, but didn't set one). 20526 20527 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 20528 20529 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 20530 20531 *Ben Laurie* 20532 20533 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 20534 parameters. This was causing a warning which killed off the Win32 compile. 20535 20536 *Steve Henson* 20537 20538 * Remove C++ style comments from crypto/bn/bn_local.h. 20539 20540 *Neil Costigan <neil.costigan@celocom.com>* 20541 20542 * The function OBJ_txt2nid was broken. It was supposed to return a nid 20543 based on a text string, looking up short and long names and finally 20544 "dot" format. The "dot" format stuff didn't work. Added new function 20545 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 20546 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 20547 OID is not part of the table. 20548 20549 *Steve Henson* 20550 20551 * Add prototypes to X509 lookup/verify methods, fixing a bug in 20552 X509_LOOKUP_by_alias(). 20553 20554 *Ben Laurie* 20555 20556 * Sort openssl functions by name. 20557 20558 *Ben Laurie* 20559 20560 * Get the `gendsa` command working and add it to the `list` command. Remove 20561 encryption from sample DSA keys (in case anyone is interested the password 20562 was "1234"). 20563 20564 *Steve Henson* 20565 20566 * Make *all* `*_free` functions accept a NULL pointer. 20567 20568 *Frans Heymans <fheymans@isaserver.be>* 20569 20570 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 20571 NULL pointers. 20572 20573 *Anonymous <nobody@replay.com>* 20574 20575 * s_server should send the CAfile as acceptable CAs, not its own cert. 20576 20577 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 20578 20579 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 20580 20581 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 20582 20583 * Temp key "for export" tests were wrong in s3_srvr.c. 20584 20585 *Anonymous <nobody@replay.com>* 20586 20587 * Add prototype for temp key callback functions 20588 SSL_CTX_set_tmp_{rsa,dh}_callback(). 20589 20590 *Ben Laurie* 20591 20592 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 20593 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 20594 20595 *Steve Henson* 20596 20597 * X509_name_add_entry() freed the wrong thing after an error. 20598 20599 *Arne Ansper <arne@ats.cyber.ee>* 20600 20601 * rsa_eay.c would attempt to free a NULL context. 20602 20603 *Arne Ansper <arne@ats.cyber.ee>* 20604 20605 * BIO_s_socket() had a broken should_retry() on Windoze. 20606 20607 *Arne Ansper <arne@ats.cyber.ee>* 20608 20609 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 20610 20611 *Arne Ansper <arne@ats.cyber.ee>* 20612 20613 * Make sure the already existing X509_STORE->depth variable is initialized 20614 in X509_STORE_new(), but document the fact that this variable is still 20615 unused in the certificate verification process. 20616 20617 *Ralf S. Engelschall* 20618 20619 * Fix the various library and `apps/` files to free up pkeys obtained from 20620 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 20621 20622 *Steve Henson* 20623 20624 * Fix reference counting in X509_PUBKEY_get(). This makes 20625 demos/maurice/example2.c work, amongst others, probably. 20626 20627 *Steve Henson and Ben Laurie* 20628 20629 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 20630 `openssl` and second, the shortcut symlinks for the `openssl <command>` 20631 are no longer created. This way we have a single and consistent command 20632 line interface `openssl <command>`, similar to `cvs <command>`. 20633 20634 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 20635 20636 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 20637 BIT STRING wrapper always have zero unused bits. 20638 20639 *Steve Henson* 20640 20641 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 20642 20643 *Steve Henson* 20644 20645 * Make the top-level INSTALL documentation easier to understand. 20646 20647 *Paul Sutton* 20648 20649 * Makefiles updated to exit if an error occurs in a sub-directory 20650 make (including if user presses ^C) [Paul Sutton] 20651 20652 * Make Montgomery context stuff explicit in RSA data structure. 20653 20654 *Ben Laurie* 20655 20656 * Fix build order of pem and err to allow for generated pem.h. 20657 20658 *Ben Laurie* 20659 20660 * Fix renumbering bug in X509_NAME_delete_entry(). 20661 20662 *Ben Laurie* 20663 20664 * Enhanced the err-ins.pl script so it makes the error library number 20665 global and can add a library name. This is needed for external ASN1 and 20666 other error libraries. 20667 20668 *Steve Henson* 20669 20670 * Fixed sk_insert which never worked properly. 20671 20672 *Steve Henson* 20673 20674 * Fix ASN1 macros so they can handle indefinite length constructed 20675 EXPLICIT tags. Some non standard certificates use these: they can now 20676 be read in. 20677 20678 *Steve Henson* 20679 20680 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 20681 into a single doc/ssleay.txt bundle. This way the information is still 20682 preserved but no longer messes up this directory. Now it's new room for 20683 the new set of documentation files. 20684 20685 *Ralf S. Engelschall* 20686 20687 * SETs were incorrectly DER encoded. This was a major pain, because they 20688 shared code with SEQUENCEs, which aren't coded the same. This means that 20689 almost everything to do with SETs or SEQUENCEs has either changed name or 20690 number of arguments. 20691 20692 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 20693 20694 * Fix test data to work with the above. 20695 20696 *Ben Laurie* 20697 20698 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 20699 was already fixed by Eric for 0.9.1 it seems. 20700 20701 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 20702 20703 * Autodetect FreeBSD3. 20704 20705 *Ben Laurie* 20706 20707 * Fix various bugs in Configure. This affects the following platforms: 20708 nextstep 20709 ncr-scde 20710 unixware-2.0 20711 unixware-2.0-pentium 20712 sco5-cc. 20713 20714 *Ben Laurie* 20715 20716 * Eliminate generated files from CVS. Reorder tests to regenerate files 20717 before they are needed. 20718 20719 *Ben Laurie* 20720 20721 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 20722 20723 *Ben Laurie* 20724 20725### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 20726 20727 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 20728 changed SSLeay to OpenSSL in version strings. 20729 20730 *Ralf S. Engelschall* 20731 20732 * Some fixups to the top-level documents. 20733 20734 *Paul Sutton* 20735 20736 * Fixed the nasty bug where rsaref.h was not found under compile-time 20737 because the symlink to include/ was missing. 20738 20739 *Ralf S. Engelschall* 20740 20741 * Incorporated the popular no-RSA/DSA-only patches 20742 which allow to compile an RSA-free SSLeay. 20743 20744 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 20745 20746 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 20747 when "ssleay" is still not found. 20748 20749 *Ralf S. Engelschall* 20750 20751 * Added more platforms to Configure: Cray T3E, HPUX 11, 20752 20753 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 20754 20755 * Updated the README file. 20756 20757 *Ralf S. Engelschall* 20758 20759 * Added various .cvsignore files in the CVS repository subdirs 20760 to make a "cvs update" really silent. 20761 20762 *Ralf S. Engelschall* 20763 20764 * Recompiled the error-definition header files and added 20765 missing symbols to the Win32 linker tables. 20766 20767 *Ralf S. Engelschall* 20768 20769 * Cleaned up the top-level documents; 20770 o new files: CHANGES and LICENSE 20771 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 20772 o merged COPYRIGHT into LICENSE 20773 o removed obsolete TODO file 20774 o renamed MICROSOFT to INSTALL.W32 20775 20776 *Ralf S. Engelschall* 20777 20778 * Removed dummy files from the 0.9.1b source tree: 20779 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 20780 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 20781 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 20782 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 20783 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 20784 20785 *Ralf S. Engelschall* 20786 20787 * Added various platform portability fixes. 20788 20789 *Mark J. Cox* 20790 20791 * The Genesis of the OpenSSL rpject: 20792 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 20793 Young and Tim J. Hudson created while they were working for C2Net until 20794 summer 1998. 20795 20796 *The OpenSSL Project* 20797 20798### Changes between 0.9.0b and 0.9.1b [not released] 20799 20800 * Updated a few CA certificates under certs/ 20801 20802 *Eric A. Young* 20803 20804 * Changed some BIGNUM api stuff. 20805 20806 *Eric A. Young* 20807 20808 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 20809 DGUX x86, Linux Alpha, etc. 20810 20811 *Eric A. Young* 20812 20813 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 20814 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 20815 available). 20816 20817 *Eric A. Young* 20818 20819 * Add -strparse option to asn1pars program which parses nested 20820 binary structures 20821 20822 *Dr Stephen Henson <shenson@bigfoot.com>* 20823 20824 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 20825 20826 *Eric A. Young* 20827 20828 * DSA fix for "ca" program. 20829 20830 *Eric A. Young* 20831 20832 * Added "-genkey" option to "dsaparam" program. 20833 20834 *Eric A. Young* 20835 20836 * Added RIPE MD160 (rmd160) message digest. 20837 20838 *Eric A. Young* 20839 20840 * Added -a (all) option to "ssleay version" command. 20841 20842 *Eric A. Young* 20843 20844 * Added PLATFORM define which is the id given to Configure. 20845 20846 *Eric A. Young* 20847 20848 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 20849 20850 *Eric A. Young* 20851 20852 * Extended the ASN.1 parser routines. 20853 20854 *Eric A. Young* 20855 20856 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 20857 20858 *Eric A. Young* 20859 20860 * Added a BN_CTX to the BN library. 20861 20862 *Eric A. Young* 20863 20864 * Fixed the weak key values in DES library 20865 20866 *Eric A. Young* 20867 20868 * Changed API in EVP library for cipher aliases. 20869 20870 *Eric A. Young* 20871 20872 * Added support for RC2/64bit cipher. 20873 20874 *Eric A. Young* 20875 20876 * Converted the lhash library to the crypto/mem.c functions. 20877 20878 *Eric A. Young* 20879 20880 * Added more recognized ASN.1 object ids. 20881 20882 *Eric A. Young* 20883 20884 * Added more RSA padding checks for SSL/TLS. 20885 20886 *Eric A. Young* 20887 20888 * Added BIO proxy/filter functionality. 20889 20890 *Eric A. Young* 20891 20892 * Added extra_certs to SSL_CTX which can be used 20893 send extra CA certificates to the client in the CA cert chain sending 20894 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 20895 20896 *Eric A. Young* 20897 20898 * Now Fortezza is denied in the authentication phase because 20899 this is key exchange mechanism is not supported by SSLeay at all. 20900 20901 *Eric A. Young* 20902 20903 * Additional PKCS1 checks. 20904 20905 *Eric A. Young* 20906 20907 * Support the string "TLSv1" for all TLS v1 ciphers. 20908 20909 *Eric A. Young* 20910 20911 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 20912 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 20913 20914 *Eric A. Young* 20915 20916 * Fixed a few memory leaks. 20917 20918 *Eric A. Young* 20919 20920 * Fixed various code and comment typos. 20921 20922 *Eric A. Young* 20923 20924 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 20925 bytes sent in the client random. 20926 20927 *Edward Bishop <ebishop@spyglass.com>* 20928 20929<!-- Links --> 20930 20931[CVE-2024-9143]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-9143 20932[CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119 20933[CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535 20934[CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741 20935[CVE-2024-4603]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4603 20936[CVE-2024-2511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-2511 20937[CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727 20938[CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237 20939[CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 20940[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678 20941[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363 20942[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807 20943[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817 20944[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 20945[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 20946[RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 20947[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 20948[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 20949[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466 20950[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465 20951[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464 20952[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 20953[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 20954[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 20955[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 20956[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 20957[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 20958[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 20959[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 20960[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 20961[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 20962[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097 20963[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 20964[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 20965[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 20966[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 20967[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 20968[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 20969[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 20970[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 20971[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 20972[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 20973[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 20974[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 20975[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 20976[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 20977[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 20978[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 20979[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 20980[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 20981[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 20982[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 20983[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 20984[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 20985[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 20986[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 20987[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 20988[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 20989[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 20990[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 20991[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 20992[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 20993[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 20994[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 20995[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 20996[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 20997[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 20998[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 20999[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 21000[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 21001[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 21002[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 21003[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 21004[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 21005[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 21006[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 21007[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 21008[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 21009[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 21010[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 21011[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 21012[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 21013[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 21014[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 21015[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 21016[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 21017[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 21018[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 21019[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 21020[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 21021[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 21022[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 21023[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 21024[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 21025[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 21026[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 21027[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 21028[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 21029[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 21030[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 21031[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 21032[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 21033[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 21034[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 21035[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 21036[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 21037[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 21038[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 21039[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 21040[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 21041[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 21042[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 21043[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 21044[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 21045[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 21046[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 21047[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 21048[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 21049[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 21050[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 21051[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 21052[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 21053[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 21054[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 21055[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 21056[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 21057[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 21058[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 21059[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 21060[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 21061[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 21062[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 21063[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 21064[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 21065[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 21066[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 21067[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 21068[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 21069[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 21070[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 21071[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 21072[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 21073[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 21074[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 21075[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 21076[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 21077[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 21078[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 21079[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 21080[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 21081[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 21082[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 21083[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 21084[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 21085[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 21086[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 21087[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 21088[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 21089[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 21090[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 21091[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 21092[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 21093[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 21094[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 21095[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 21096[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 21097[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 21098[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 21099[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 21100[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 21101[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 21102[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 21103[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 21104[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 21105[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 21106[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 21107[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 21108[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 21109[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 21110[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 21111[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 21112[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 21113[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 21114[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 21115[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 21116[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 21117[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 21118[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 21119[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 21120[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 21121[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 21122[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 21123[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 21124[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 21125[CMVP]: https://csrc.nist.gov/projects/cryptographic-module-validation-program 21126[ESV]: https://csrc.nist.gov/Projects/cryptographic-module-validation-program/entropy-validations 21127