ClamAV: Denial of Service

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-antivirus/clamav	< 0.91	>= 0.91	All supported architectures

Related bugreports: #185013

A vulnerability has been discovered in ClamAV, allowing for a Denial of Service.

2. Impact Information

ClamAV is a GPL virus scanner.

Metaeye Security Group reported a NULL pointer dereference in ClamAV when processing RAR archives.

A remote attacker could send a specially crafted RAR archive to the clamd daemon, resulting in a crash and a Denial of Service.

3. Resolution Information

There is no known workaround at this time.

All ClamAV users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.91"

4. References

Updated August 09, 2007

Summary: This is a Gentoo Linux Security Advisory

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