Multiple vulnerabilities have been fixed with the release of version 0.88.5 of the free and open-source ClamAV AntiVirus product related to the handling of PE files and the unpacking of CHM help files.  The PE handling issue poses a significant risk and users of versions prior to ClamAV 0.88.5 are urged to upgrade ASAP.

Optionally, and also of noteworthiness on the ClamAV site, is the availability of release candidate v0.90RC1.  You may want to consider testing out this new release of ClamAV software in addition to your security conscious software upgrade.

Handler on Duty
William Salusky