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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201203-04">
<title>libxml2: Denial of Service</title>
<synopsis>A hash collision vulnerability in libxml2 allows remote attackers
to cause a Denial of Service condition.
<product type="ebuild">libxml2</product>
<announced>March 06, 2012</announced>
<revised>March 06, 2012: 1</revised>
<package name="dev-libs/libxml2" auto="yes" arch="*">
<unaffected range="ge">2.7.8-r5</unaffected>
<vulnerable range="lt">2.7.8-r5</vulnerable>
<p>libxml2 is the XML C parser and toolkit developed for the Gnome project.</p>
<p>libxml2 does not properly randomize hash functions to protect against
hash collision attacks.
<impact type="normal">
<p>A remote attacker could entice a user or automated system to open a
specially crafted XML document with an application using libxml2
resulting in a Denial of Service condition.
<p>There is no known workaround at this time.</p>
<p>All libxml2 users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=dev-libs/libxml2-2.7.8-r5"
<uri link="">CVE-2012-0841</uri>
<metadata timestamp="Sun, 04 Mar 2012 20:55:53 +0000" tag="requester">ackle</metadata>
<metadata timestamp="Tue, 06 Mar 2012 01:04:40 +0000" tag="submitter">ackle</metadata>