ClamAV: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200812-21 / clamav
Release Date	December 23, 2008
Latest Revision	December 23, 2008: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-antivirus/clamav	< 0.94.2	>= 0.94.2	All supported architectures

Related bugreports: #245450, #249833

Synopsis

Two vulnerabilities in ClamAV may allow for the remote execution of arbitrary code or a Denial of Service.

2. Impact Information

Background

Clam AntiVirus is a free anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways.

Description

Moritz Jodeit reported an off-by-one error within the get_unicode_name() function in libclamav/vba_extract.c when processing VBA project files (CVE-2008-5050). Ilja van Sprundel reported an infinite recursion error within the cli_check_jpeg_exploit() function in libclamav/special.c when processing JPEG files (CVE-2008-5314).

Impact

A remote attacker could send a specially crafted VBA or JPEG file to the clamd daemon, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application or a Denial of Service.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All ClamAV users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.94.2"

4. References

Page updated December 23, 2008

Summary: This is a Gentoo Linux Security Advisory

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