glsa-201203-23.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201203-23">
  <title>libzip: Multiple vulnerabilities</title>
  <synopsis>Multiple vulnerabilities have been found in libzip, the worst of
    which might allow execution of arbitrary code.
  </synopsis>
  <product type="ebuild">libzip</product>
  <announced>2012-03-29</announced>
  <revised count="1">2012-03-29</revised>
  <bug>409117</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/libzip" auto="yes" arch="*">
      <unaffected range="ge">0.10.1</unaffected>
      <vulnerable range="lt">0.10.1</vulnerable>
    </package>
  </affected>
  <background>
    <p>libzip is a library for manipulating zip archives.</p>
  </background>
  <description>
    <p>Two vulnerabilities have been found in the "_zip_readcdir()" function in
      zip_open.c of libzip:
    </p>
    
    <ul>
      <li>An incorrect loop construct, which could cause a heap-based buffer
        overflow (CVE-2012-1162).
      </li>
      <li>An integer overflow, which may not restrict operations within the
        memory buffer (CVE-2012-1163).
      </li>
    </ul>
  </description>
  <impact type="normal">
    <p>A remote attacker could entice a user to open a specially crafted ZIP
      file, possibly resulting in execution of arbitrary code with the
      privileges of the process, a Denial of Service condition, or information
      leaks.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All libzip users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-libs/libzip-0.10.1"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1162">CVE-2012-1162</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1163">CVE-2012-1163</uri>
  </references>
  <metadata timestamp="2012-03-23T11:20:26Z" tag="requester">ackle</metadata>
  <metadata timestamp="2012-03-29T11:18:55Z" tag="submitter">ackle</metadata>
</glsa>