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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="201405-16">
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<title>Mono: Denial of service</title>
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<synopsis>A hash collision vulnerability in Mono allows remote attackers to
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cause a Denial of Service condition.
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</synopsis>
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<product type="ebuild">mono</product>
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<announced>2014-05-18</announced>
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<revised count="1">2014-05-18</revised>
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<bug>433768</bug>
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<access>remote</access>
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<affected>
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<package name="dev-lang/mono" auto="yes" arch="*">
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<unaffected range="ge">2.10.9-r2</unaffected>
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<vulnerable range="lt">2.10.9-r2</vulnerable>
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</package>
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</affected>
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<background>
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<p>Mono is an open source implementation of Microsoft’s .NET Framework.</p>
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</background>
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<description>
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<p>Mono does not properly randomize hash functions for form posts to
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protect against hash collision attacks.
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could send specially crafted parameters, possibly
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resulting in a Denial of Service condition.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All Mono users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=dev-lang/mono-2.10.9-r2"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3543">CVE-2012-3543</uri>
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</references>
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<metadata tag="requester" timestamp="2012-12-16T21:55:51Z">craig</metadata>
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<metadata tag="submitter" timestamp="2014-05-18T11:28:30Z">ackle</metadata>
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</glsa>
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