--TEST-- GHSA-h35g-vwh6-m678 (mysqlnd leaks partial content of the heap - stmt row no space for the field) --EXTENSIONS-- mysqli --FILE-- wait(); $conn = new mysqli($servername, $username, $password, "", $port); echo "[*] Query the fake server...\n"; $sql = "SELECT strval, strval FROM data"; $result = $conn->query($sql); if ($result->num_rows > 0) { while ($row = $result->fetch_assoc()) { var_dump($row['strval']); } } $conn->close(); $process->terminate(true); print "done!"; ?> --EXPECTF-- [*] Server started [*] Connection established [*] Sending - Server Greeting: 580000000a352e352e352d31302e352e31382d4d6172696144420003000000473e3f6047257c6700fef7080200ff81150000000000000f0000006c6b55463f49335f686c6431006d7973716c5f6e61746976655f70617373776f7264 [*] Received: 6900000185a21a00000000c0080000000000000000000000000000000000000000000000726f6f7400006d7973716c5f6e61746976655f70617373776f7264002c0c5f636c69656e745f6e616d65076d7973716c6e640c5f7365727665725f686f7374093132372e302e302e31 [*] Sending - Server OK: 0700000200000002000000 [*] Query the fake server... [*] Received: 200000000353454c4543542073747276616c2c2073747276616c2046524f4d2064617461 [*] Sending - Malicious Query Response for data strval field [length overflow]: 01000001023200000203646566087068705f74657374046461746104646174610673747276616c0673747276616c0ce000c8000000fd01100000003200000303646566087068705f74657374046461746104646174610673747276616c0673747276616c0ce000c8000000fd011000000005000004fe000022000a0000050474657374fefefefefe05000006fe00002200 Warning: mysqli_result::fetch_assoc(): Malformed server packet. Field length pointing after end of packet in %s on line %d [*] Received: 0100000001 [*] Server finished done!