GLSA 200610-10: ClamAV: Multiple Vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	ClamAV: Multiple Vulnerabilities
Date:	10/24/2006
Bugs:	#151561
ID:	200610-10

Synopsis

ClamAV is vulnerable to a heap-based buffer overflow potentially allowing remote execution of arbitrary code and a Denial of Service.

Background

ClamAV is a GPL virus scanner.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-antivirus/clamav	< 0.88.5	>= 0.88.5	All supported architectures

Description

Damian Put and an anonymous researcher reported a potential heap-based buffer overflow vulnerability in rebuildpe.c responsible for the rebuilding of an unpacked PE file, and a possible crash in chmunpack.c in the CHM unpacker.

Impact

By sending a malicious attachment to a mail server running ClamAV, or providing a malicious file to ClamAV through any other method, a remote attacker could cause a Denial of Service and potentially the execution of arbitrary code with the permissions of the user running ClamAV.

Workaround

There is no known workaround at this time.

Resolution

All ClamAV users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.88.5"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200610-10.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.