1--TEST-- 2GHSA-h35g-vwh6-m678 (mysqlnd leaks partial content of the heap - auth message buffer over-read) 3--EXTENSIONS-- 4mysqli 5--FILE-- 6<?php 7require_once 'fake_server.inc'; 8 9$port = 50001; 10$servername = "127.0.0.1"; 11$username = "root"; 12$password = ""; 13 14$process = run_fake_server_in_background('auth_response_message_over_read', $port); 15$process->wait(); 16 17try { 18 $conn = new mysqli( $servername, $username, $password, "", $port ); 19 $info = mysqli_info($conn); 20 var_dump($info); 21} catch (Exception $e) { 22 echo $e->getMessage() . PHP_EOL; 23} 24 25$process->terminate(); 26 27print "done!"; 28?> 29--EXPECTF-- 30[*] Server started 31[*] Connection established 32[*] Sending - Server Greeting: 580000000a352e352e352d31302e352e31382d4d6172696144420003000000473e3f6047257c6700fef7080200ff81150000000000000f0000006c6b55463f49335f686c6431006d7973716c5f6e61746976655f70617373776f7264 33[*] Received: 6900000185a21a00000000c0080000000000000000000000000000000000000000000000726f6f7400006d7973716c5f6e61746976655f70617373776f7264002c0c5f636c69656e745f6e616d65076d7973716c6e640c5f7365727665725f686f7374093132372e302e302e31 34[*] Sending - Malicious OK Auth Response [Extract heap through buffer over-read]: 0900000200000002000000fcff 35 36Warning: mysqli::__construct(): OK packet message length is past the packet size in %s on line %d 37Unknown error while trying to connect via tcp://127.0.0.1:50001 38done! 39