PHP Other Vulnerability - CVE-2015-6834
Multiple use-after-free vulnerabilities in PHP before 5.4.45 5.5.x before 5.5.29 and 5.6.x before 5.6.13 allow remote attackers to execute arbitrary code via vectors related to (1) the Serializable interface (2) the SplObjectStorage class and (3) the SplDoublyLinkedList class which are mishandled during unserialization.