<?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>