[ GLSA 200404-07 ] ClamAV RAR Archive Remote Denial Of Service Vulnerability

2004-04-08T00:00:00
ID SECURITYVULNS:DOC:6032
Type securityvulns
Reporter Securityvulns
Modified 2004-04-08T00:00:00

Description


Gentoo Linux Security Advisory GLSA 200404-07


                                         http://security.gentoo.org

Severity: Normal Title: ClamAV RAR Archive Remote Denial Of Service Vulnerability

  Date: April 07, 2004 
  Bugs: #45357
    ID: 200404-07

Synopsis

ClamAV is vulnerable to a denial of service attack when processing certain RAR archives.

Background

From http://www.clamav.net/ :

"Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. Most importantly, the virus database is kept up to date."

Affected packages

-------------------------------------------------------------------
 Package          /   Vulnerable   /                    Unaffected
-------------------------------------------------------------------
 net-mail/clamav        <= 0.68                          >= 0.68.1

Description

Certain types of RAR archives, including those created by variants of the W32.Beagle.A@mm worm, may cause clamav to crash when it attempts to process them.

Impact

This vulnerability causes a Denial of Service in the clamav process. Depending on configuration, this may cause dependent services such as mail to fail as well.

Workaround

A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package.

Resolution

ClamAV users should upgrade to version 0.68.1 or later:

# emerge sync

# emerge -pv ">=net-mail/clamav-0.68.1"
# emerge ">=net-mail/clamav-0.68.1"

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 http://bugs.gentoo.org.