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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201405-16">
<title>Mono: Denial of Service</title>
<synopsis>A hash collision vulnerability in Mono allows remote attackers to
cause a Denial of Service condition.
<product type="ebuild">mono</product>
<announced>May 18, 2014</announced>
<revised>May 18, 2014: 1</revised>
<package name="dev-lang/mono" auto="yes" arch="*">
<unaffected range="ge">2.10.9-r2</unaffected>
<vulnerable range="lt">2.10.9-r2</vulnerable>
<p>Mono is an open source implementation of Microsoft’s .NET Framework.</p>
<p>Mono does not properly randomize hash functions for form posts to
protect against hash collision attacks.
<impact type="normal">
<p>A remote attacker could send specially crafted parameters, possibly
resulting in a Denial of Service condition.
<p>There is no known workaround at this time.</p>
<p>All Mono users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=dev-lang/mono-2.10.9-r2"
<uri link="">CVE-2012-3543</uri>
<metadata tag="requester" timestamp="Sun, 16 Dec 2012 21:55:51 +0000">craig</metadata>
<metadata tag="submitter" timestamp="Sun, 18 May 2014 11:28:30 +0000">ackle</metadata>