PHP Numeric Errors Vulnerability - CVE-2007-4657
Multiple integer overflows in PHP 4 before 4.4.8 and PHP 5 before 5.2.4 allow remote attackers to obtain sensitive information (memory contents) or cause a denial of service (thread crash) via a large len value to the (1) strspn or (2) strcspn function which triggers an out-of-bounds read. NOTE: this affects different product versions than CVE-2007-3996.