| 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.
|