Buffer overflow in openlog function for PHP 4.3.1 on Windows operating system, and possibly other OSes, allows remote attackers to cause a crash and possibly execute arbitrary code via a long filename argument.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11637
http://www.securityfocus.com/archive/1/385238
http://www.securityfocus.com/archive/1/316583