CVE-2006-1549
PHP 4.4.2 and 5.1.2 allows local users to cause a crash (segmentation fault) by defining and executing a recursive function. NOTE: it has been reported by a reliable third party that some later versions are also affected.
Date published : 2006-04-10
http://www.securityfocus.com/bid/22766
http://www.securityfocus.com/archive/1/430453/100/0/threaded