Date: Tue, 08 Aug 2006 16:01:42 +0200
From: Matthias Geerdsen <vorlon@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200608-13 ] ClamAV: Heap buffer overflow
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Gentoo Linux Security Advisory GLSA 200608-13
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http://security.gentoo.org/
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Severity: High
Title: ClamAV: Heap buffer overflow
Date: August 08, 2006
Bugs: #143093
ID: 200608-13
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Synopsis
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ClamAV is vulnerable to a heap-based buffer overflow resulting in a
Denial of Service and potentially remote execution of arbitrary code.
Background
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ClamAV is a GPL virus scanner.
Affected packages
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Package / Vulnerable / Unaffected
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1 app-antivirus/clamav < 0.88.4 >=3D 0.88.4
Description
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Damian Put has discovered a boundary error in the pefromupx() function
used by the UPX extraction module, which unpacks PE Windows executable
files. Both the "clamscan" command-line utility and the "clamd" daemon
are affected.
Impact
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By sending a malicious attachment to a mail server running ClamAV, a
remote attacker can cause a Denial of Service and potentially the
execution of arbitrary code with the permissions of the user running
ClamAV.
Workaround
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There is no known workaround at this time.
Resolution
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All ClamAV users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dapp-antivirus/clamav-0.88.4"
References
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[ 1 ] ClamAV security advisory
http://www.clamav.net/security/0.88.4.html
Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200608-13.xml
Concerns?
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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
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Copyright 2006 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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