CVE-2007-1453 Information

Description

Buffer underflow in the PHP_FILTER_TRIM_DEFAULT macro in the filtering extension (ext/filter) in PHP 5.2.0 allows context-dependent attackers to execute arbitrary code by calling filter_var with certain modes such as FILTER_VALIDATE_INT which causes filter to write a null byte in whitespace that precedes the buffer.

Reference

http://secunia.com/advisories/25056 http://secunia.com/advisories/25062 http://www.debian.org/security/2007/dsa-1283 http://www.novell.com/linux/security/advisories/2007_32_php.html http://www.php.net/releases/5_2_1.php http://www.php-security.org/MOPB/MOPB-19-2007.html http://www.securityfocus.com/bid/22922