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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201708-08">
<title>bzip2: Denial of service</title>
<synopsis>An use-after-free vulnerability has been found in bzip2 that could
allow remote attackers to cause a Denial of Service condition.
</synopsis>
<product type="ebuild">bzip2</product>
<announced>2017-08-21</announced>
<revised count="1">2017-08-21</revised>
<bug>620466</bug>
<access>remote</access>
<affected>
<package name="app-arch/bzip2" auto="yes" arch="*">
<unaffected range="ge">1.0.6-r8</unaffected>
<vulnerable range="lt">1.0.6-r8</vulnerable>
</package>
</affected>
<background>
<p>bzip2 is a high-quality data compressor used extensively by Gentoo
Linux.
</p>
</background>
<description>
<p>A use-after-free flaw was found in bzip2recover, leading to a null
pointer dereference, or a write to a closed file descriptor. Please
review the CVE identifier referenced below for details.
</p>
</description>
<impact type="normal">
<p>A remote attacker could entice a user to process a specially crafted
bzip2 archive using bzip2recover, possibly resulting in a Denial of
Service condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All bzip2 users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.6-r8"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-3189">CVE-2016-3189</uri>
</references>
<metadata tag="requester" timestamp="2017-06-04T20:39:15Z">whissi</metadata>
<metadata tag="submitter" timestamp="2017-08-21T01:24:45Z">whissi</metadata>
</glsa>
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