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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201401-07">
  <title>libxslt: Denial of Service</title>
  <synopsis>Multiple Denial of Service vulnerabilities have been found in
    libxslt.
  </synopsis>
  <product type="ebuild">libxslt</product>
  <announced>2014-01-10</announced>
  <revised>2014-01-10: 1</revised>
  <bug>433603</bug>
  <bug>436284</bug>
  <bug>463236</bug>
  <bug>496114</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/libxslt" auto="yes" arch="*">
      <unaffected range="ge">1.1.28</unaffected>
      <vulnerable range="lt">1.1.28</vulnerable>
    </package>
  </affected>
  <background>
    <p>libxslt is the XSLT C library developed for the GNOME project. XSLT is
      an XML language to define transformations for XML.
    </p>
  </background>
  <description>
    <p>Multiple vulnerabilities have been found in libxslt:</p>
    
    <ul>
      <li>Multiple errors exist in pattern.c and functions.c (CVE-2012-2870,
        CVE-2012-6139).
      </li>
      <li>A double-free error exists in templates.c (CVE-2012-2893).</li>
      <li>A NULL pointer dereference in keys.c (CVE-2012-6139).</li>
      <li>An error in handling stylesheets containing DTDs (CVE-2013-4520).</li>
    </ul>
  </description>
  <impact type="normal">
    <p>A remote attacker could entice a user to process a specially crafted
      file in an application linked against libxslt, 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 libxslt users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-libs/libxslt-1.1.28"
    </code>
    
    <p>Packages which depend on this library may need to be recompiled. Tools
      such as revdep-rebuild may assist in identifying some of these packages.
    </p>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2870">CVE-2012-2870</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2893">CVE-2012-2893</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6139">CVE-2012-6139</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4520">CVE-2013-4520</uri>
  </references>
  <metadata tag="requester" timestamp="2012-09-30T01:49:44Z">ackle</metadata>
  <metadata tag="submitter" timestamp="2014-01-10T14:13:14Z">ackle</metadata>
</glsa>