Trend Micro OfficeScan Corporate Edition 8.0 Patch 2 build 1189 and earlier, and 7.3 Patch 3 build 1314 and earlier, allows remote attackers to cause a denial of service (process consumption) via (1) an HTTP request without a Content-Length header or (2) invalid characters in unspecified CGI arguments, which triggers a NULL pointer dereference.

More... (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-1366)