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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202011-02">
<title>OpenDMARC: Heap-based buffer overflow</title>
<synopsis>A heap-based buffer overflow in OpenDMARC might allow remote
attackers to execute arbitrary code.
</synopsis>
<product type="ebuild">opendmarc</product>
<announced>2020-11-03</announced>
<revised count="1">2020-11-03</revised>
<bug>734158</bug>
<access>local, remote</access>
<affected>
<package name="mail-filter/opendmarc" auto="yes" arch="*">
<unaffected range="ge">1.3.3</unaffected>
<vulnerable range="lt">1.3.3</vulnerable>
</package>
</affected>
<background>
<p>OpenDMARC is an open source DMARC implementation.</p>
</background>
<description>
<p>It was found that OpenDMARC did not properly handle DMARC aggregate
reports.
</p>
</description>
<impact type="normal">
<p>A remote attacker, by sending a specially crafted DMARC aggregate
report, could possibly cause a Denial of Service condition and depending
on how OpenDMARC library is used in linked application execute arbitrary
code with the privileges of the process.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All OpenDMARC users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/opendmarc-1.3.3"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-12460">CVE-2020-12460</uri>
</references>
<metadata tag="requester" timestamp="2020-10-15T18:55:45Z">sam_c</metadata>
<metadata tag="submitter" timestamp="2020-11-03T00:33:08Z">sam_c</metadata>
</glsa>
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