glsa-201708-08.xml


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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>2017-08-21: 1</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 "&gt;=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>