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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201202-03">
<title>MaraDNS: Denial of Service</title>
<synopsis>A hash collision vulnerability in MaraDNS allows remote attackers
to cause a Denial of Service condition.
<product type="ebuild">maradns</product>
<announced>February 22, 2012</announced>
<revised>February 22, 2012: 1</revised>
<package name="net-dns/maradns" auto="yes" arch="*">
<unaffected range="ge">1.4.09</unaffected>
<vulnerable range="lt">1.4.09</vulnerable>
<p>MaraDNS is a proxy DNS server with permanent caching.</p>
<p>MaraDNS does not properly randomize hash functions to protect against
hash collision attacks.
<impact type="normal">
<p>A remote attacker could send many specially crafted DNS recursive
queries, possibly resulting in a Denial of Service condition.
<p>There is no known workaround at this time.</p>
<p>All MaraDNS users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=net-dns/maradns-1.4.09"
<uri link="">CVE-2012-0024</uri>
<metadata timestamp="Mon, 20 Feb 2012 21:36:13 +0000" tag="requester">ackle</metadata>
<metadata timestamp="Wed, 22 Feb 2012 19:45:52 +0000" tag="submitter">ackle</metadata>