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full-disclosure-uk: [Full-disclosure] [ GLSA 200808-07 ] ClamAV:

[Full-disclosure] [ GLSA 200808-07 ] ClamAV: Multiple Denials of Service

From: Raphael Marichez <falco_at_nospam>
Date: Fri Aug 08 2008 - 17:09:00 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200808-07
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Severity: Low Title: ClamAV: Multiple Denials of Service Date: August 08, 2008 Bugs: #204340, #227351 ID: 200808-07
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Synopsis


Multiple vulnerabilities in ClamAV may result in a Denial of Service.

Background


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

Affected packages



Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-antivirus/clamav < 0.93.3 >= 0.93.3

Description


Damian Put has discovered an out-of-bounds memory access while processing Petite files (CVE-2008-2713, CVE-2008-3215). Also, please note that the 0.93 ClamAV branch fixes the first of the two attack vectors of CVE-2007-6595 concerning an insecure creation of temporary files vulnerability. The sigtool attack vector seems still unfixed.

Impact


A remote attacker could entice a user or automated system to scan a specially crafted Petite file, possibly resulting in a Denial of Service (daemon crash). Also, the insecure creation of temporary files vulnerability can be triggered by a local user to perform a symlink attack.

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-0.93.3"

References


  [ 1 ] CVE-2007-6595
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6595   [ 2 ] CVE-2008-2713
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2713   [ 3 ] CVE-2008-3215
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3215

Availability


This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200808-07.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 http://bugs.gentoo.org.

License


Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5



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