PHP 5.5.0 up to 5.5.6 OBJECT parse_iso_intervals.c DateInterval memory corruption

A vulnerability was found in PHP 5.5.0 up to 5.5.6 (Programming Language Software). It has been rated as critical. This issue affects the function DateInterval of the file ext/date/lib/parse_iso_intervals.c of the component OBJECT Handler. Applying the patch Fixed bug #66060 (Heap buffer over-read in DateInterval) is able to eliminate this problem. The bugfix is ready for download at git.php.net. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 13821.