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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200712-20">
<title>ClamAV: Multiple vulnerabilities</title>
<synopsis>
Multiple vulnerabilities have been discovered in ClamAV allowing remote
execution of arbitrary code and Denial of Service attacks.
</synopsis>
<product type="ebuild">clamav</product>
<announced>December 29, 2007</announced>
<revised>December 29, 2007: 01</revised>
<bug>202762</bug>
<access>remote</access>
<affected>
<package name="app-antivirus/clamav" auto="yes" arch="*">
<unaffected range="ge">0.91.2-r1</unaffected>
<vulnerable range="lt">0.91.2-r1</vulnerable>
</package>
</affected>
<background>
<p>
Clam AntiVirus is a free anti-virus toolkit for UNIX, designed
especially for e-mail scanning on mail gateways.
</p>
</background>
<description>
<p>
iDefense reported an integer overflow vulnerability in the cli_scanpe()
function when parsing Portable Executable (PE) files packed in the MEW
format, that could be exploited to cause a heap-based buffer overflow
(CVE-2007-6335). Toeroek Edwin reported an off-by-one error when
decompressing MS-ZIP compressed CAB files (CVE-2007-6336). An
unspecified vulnerability related to the bzip2 decompression algorithm
has also been discovered (CVE-2007-6337).
</p>
</description>
<impact type="high">
<p>
A remote attacker could entice a user or automated system to scan a
specially crafted file, possibly leading to the execution of arbitrary
code with the privileges of the user running ClamAV (either a system
user or the "clamav" user if clamd is compromised).
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All ClamAV users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-antivirus/clamav-0.91.2-r1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6335">CVE-2007-6335</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6336">CVE-2007-6336</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6337">CVE-2007-6337</uri>
</references>
<metadata tag="submitter" timestamp="Thu, 27 Dec 2007 00:36:49 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Fri, 28 Dec 2007 22:56:45 +0000">
p-y
</metadata>
</glsa>