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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200608-13">
<title>ClamAV: Heap buffer overflow</title>
ClamAV is vulnerable to a heap-based buffer overflow resulting in a Denial
of Service and potentially remote execution of arbitrary code.
<product type="ebuild">clamav</product>
<announced>August 08, 2006</announced>
<revised>August 08, 2006: 02</revised>
<package name="app-antivirus/clamav" auto="yes" arch="*">
<unaffected range="ge">0.88.4</unaffected>
<vulnerable range="lt">0.88.4</vulnerable>
ClamAV is a GPL virus scanner.
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 type="high">
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
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-0.88.4&quot;</code>
<uri link="">ClamAV security advisory</uri>
<uri link="">CVE-2006-4018</uri>
<metadata tag="submitter" timestamp="Tue, 08 Aug 2006 07:45:00 +0000">
<metadata tag="bugReady" timestamp="Tue, 08 Aug 2006 09:57:22 +0000">