CVE-2007-0988

2007-02-20T17:28:00
ID CVE-2007-0988
Type cve
Reporter cve@mitre.org
Modified 2019-10-09T22:52:00

Description

The zend_hash_init function in PHP 5 before 5.2.1 and PHP 4 before 4.4.5, when running on a 64-bit platform, allows context-dependent attackers to cause a denial of service (infinite loop) by unserializing certain integer expressions, which only cause 32-bit arguments to be used after the check for a negative value, as demonstrated by an "a:2147483649:{" argument. Availability also affected by time out alarm for the script, which helps prevent infinite loops.