CVE-2015-4116
Use-after-free vulnerability in the spl_ptr_heap_insert function in ext/spl/spl_heap.c in PHP before 5.5.27 and 5.6.x before 5.6.11 allows remote attackers to execute arbitrary code by triggering a failed SplMinHeap::compare operation.
Date published : 2016-05-16
http://git.php.net/?p=php-src.git;a=commit;h=1cbd25ca15383394ffa9ee8601c5de4c0f2f90e1