-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 //@(#) Mordred Security Labs advisory Release date: April 1, 2003 Name: Integer overflow in PHP array_pad() function Versions affected: all versions Risk: average Author: Sir Mordred (mordred@s-mail.com) I. Description: PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. Please visit http://www.php.net for more information about PHP. II. Details: The function array_pad(array input, int pad_size, mixed pad_value) returns a copy of the input padded to size specified by pad_size with pad_value. Unfortunately the implementation of this function suffers from an integer overflow caused by a very long second argument and could allow a local/remote attacker in the worst case to gain control over the web server. The following short script will cause a httpd child to die: $ cat t.php <?php array_pad(array(1,2,3), 0x40000003, "pad"); ?> III. Platforms tested Linux 2.4 with Apache 1.3.27 / PHP 4.3.1 IV. Vendor response Vendor has been contacted. -----BEGIN PGP SIGNATURE----- Version: Hush 2.2 (Java) Note: This signature can be verified at https://www.hushtools.com/verify wmAEARECACAFAj6Kzo4ZHHNpci5tb3JkcmVkQGh1c2htYWlsLmNvbQAKCRAOkXvN4BZr fK+sAKCEyIP0M6n390Siz9CFIwsUTVBX6QCeOT5GLt3Y1p3Xu+1ldtJZvu1vXYg= =639h -----END PGP SIGNATURE----- Concerned about your privacy? Follow this link to get FREE encrypted email: https://www.hushmail.com/?l=2 Big $$$ to be made with the HushMail Affiliate Program: https://www.hushmail.com/about.php?subloc=affiliate&l=427
This archive was generated by hypermail 2b30 : Thu Apr 03 2003 - 09:40:05 PST