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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200506-23">
<title>Clam AntiVirus: Denial of Service vulnerability</title>
Clam AntiVirus is vulnerable to a Denial of Service attack when processing
certain Quantum archives.
<product type="ebuild">clamav</product>
<announced>June 27, 2005</announced>
<revised>May 22, 2006: 02</revised>
<package name="app-antivirus/clamav" auto="yes" arch="*">
<unaffected range="ge">0.86.1</unaffected>
<vulnerable range="lt">0.86.1</vulnerable>
Clam AntiVirus is a GPL anti-virus toolkit, designed for integration
with mail servers to perform attachment scanning. Clam AntiVirus also
provides a command line scanner and a tool for fetching updates of the
virus database.
Andrew Toller and Stefan Kanthak discovered that a flaw in libmspack's
Quantum archive decompressor renders Clam AntiVirus vulnerable to a
Denial of Service attack.
<impact type="normal">
A remote attacker could exploit this vulnerability to cause a Denial of
Service by sending a specially crafted Quantum archive to the server.
There is no known workaround at this time.
All Clam AntiVirus users should upgrade to the latest available
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-antivirus/clamav-0.86.1&quot;</code>
<uri link="">Clam AntiVirus Release Notes</uri>
<uri link="">CVE-2005-2056</uri>
<metadata tag="requester" timestamp="Fri, 24 Jun 2005 22:27:44 +0000">
<metadata tag="submitter" timestamp="Fri, 24 Jun 2005 23:09:26 +0000">
<metadata tag="bugReady" timestamp="Sun, 26 Jun 2005 16:53:15 +0000">