PHP Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability - CVE-2006-4482
Multiple heap-based buffer overflows in the (1) str_repeat and (2) wordwrap functions in ext/standard/string.c in PHP before 5.1.5 when used on a 64-bit system have unspecified impact and attack vectors a different vulnerability than CVE-2006-1990.