Multiple vulnerabilities have been identified in HP Secure Web Server for HP Tru64 UNIX, which could be exploited by attackers or malicious users to bypass security restrictions, cause a denial of service or execute arbitrary code. These issues are caused by errors in PHP. For additional information, see : VUPEN/ADV-2006-3318 - VUPEN/ADV-2007-0546 - VUPEN/ADV-2007-0791