Comodo Internet Security before 5.10.228257.2253 on Windows 7 x64 allows local users to cause a denial of service (system crash) via a crafted 32-bit Portable Executable (PE) file with a kernel ImageBase value.
http://www.securitytracker.com/id?1026982
http://www.securityfocus.com/bid/53163
http://www.comodo.com/home/download/release-notes.php?p=anti-malware