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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200712-20">
<title>ClamAV: Multiple vulnerabilities</title>
Multiple vulnerabilities have been discovered in ClamAV allowing remote
execution of arbitrary code and Denial of Service attacks.
<product type="ebuild">clamav</product>
<announced>December 29, 2007</announced>
<revised>December 29, 2007: 01</revised>
<package name="app-antivirus/clamav" auto="yes" arch="*">
<unaffected range="ge">0.91.2-r1</unaffected>
<vulnerable range="lt">0.91.2-r1</vulnerable>
Clam AntiVirus is a free anti-virus toolkit for UNIX, designed
especially for e-mail scanning on mail gateways.
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).
<impact type="high">
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).
There is no known workaround at this time.
All ClamAV users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-antivirus/clamav-0.91.2-r1&quot;</code>
<uri link="">CVE-2007-6335</uri>
<uri link="">CVE-2007-6336</uri>
<uri link="">CVE-2007-6337</uri>
<metadata tag="submitter" timestamp="Thu, 27 Dec 2007 00:36:49 +0000">
<metadata tag="bugReady" timestamp="Fri, 28 Dec 2007 22:56:45 +0000">