GLSA 200511-04: ClamAV: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	ClamAV: Multiple vulnerabilities
Date:	11/06/2005
Bugs:	#109213
ID:	200511-04

Synopsis

ClamAV has many security flaws which make it vulnerable to remote execution of arbitrary code and a Denial of Service.

Background

ClamAV is a GPL anti-virus toolkit, designed for integration with mail servers to perform attachment scanning. ClamAV also provides a command line scanner and a tool for fetching updates of the virus database.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-antivirus/clamav	< 0.87.1	>= 0.87.1	All supported architectures

Description

ClamAV has multiple security flaws: a boundary check was performed incorrectly in petite.c, a buffer size calculation in unfsg_133 was incorrect in fsg.c, a possible infinite loop was fixed in tnef.c and a possible infinite loop in cabd_find was fixed in cabd.c . In addition to this, Marcin Owsiany reported that a corrupted DOC file causes a segmentation fault in ClamAV.

Impact

By sending a malicious attachment to a mail server that is hooked with ClamAV, a remote attacker could cause a Denial of Service or the execution of arbitrary code.

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-0.87.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200511-04.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.