(Apparently no CVE id available yet)

http://www.vuxml.org/freebsd/8012a79d-5d21-11db-bb8d-00123ffe8333.html

Secunia reports:
Two vulnerabilities have been reported in Clam AntiVirus, which potentially 
can be exploited by malicious people to cause a DoS (Denial of Service) or 
compromise a vulnerable system.
1) An unspecified error in the CHM unpacker in chmunpack.c can be exploited to 
cause a DoS.
2) An unspecified error in rebuildpe.c when rebuilding PE files after 
unpacking can be exploited to cause a heap-based buffer overflow.