Clam AntiVirus: Denial of Service vulnerability
Gentoo Linux Security Advisory
||GLSA 200506-23 / clamav
||June 27, 2005
||May 22, 2006: 02
All supported architectures
Clam AntiVirus is vulnerable to a Denial of Service attack when processing
certain Quantum archives.
Clam AntiVirus is a GPL anti-virus toolkit, designed for integration
with mail servers to perform attachment scanning. Clam AntiVirus also
provides a command line scanner and a tool for fetching updates of the
Andrew Toller and Stefan Kanthak discovered that a flaw in libmspack's
Quantum archive decompressor renders Clam AntiVirus vulnerable to a
Denial of Service attack.
A remote attacker could exploit this vulnerability to cause a Denial of
Service by sending a specially crafted Quantum archive to the server.
There is no known workaround at this time.
All Clam AntiVirus users should upgrade to the latest available
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.86.1"