glsa-201403-02.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201403-02">
  <title>LibYAML: Arbitrary code execution</title>
  <synopsis>A Vulnerability in LibYAML could result in execution of arbitrary
    code.
  </synopsis>
  <product type="ebuild">libyaml</product>
  <announced>March 08, 2014</announced>
  <revised>March 08, 2014: 1</revised>
  <bug>499920</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/libyaml" auto="yes" arch="*">
      <unaffected range="ge">0.1.5</unaffected>
      <vulnerable range="lt">0.1.5</vulnerable>
    </package>
  </affected>
  <background>
    <p>LibYAML is a YAML 1.1 parser and emitter written in C.</p>
  </background>
  <description>
    <p>A heap-based buffer overflow flaw was found in the way libyaml parsed
      YAML tags.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could provide a specially-crafted YAML document which
      when parsed by LibYAML, would cause the application to crash or,
      potentially, execute arbitrary code with the privileges the user who is
      running the application.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All LibYAML users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-libs/libyaml-0.1.5"
    </code>
    
  </resolution>
  <references>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6393">CVE-2013-6393</uri>
  </references>
  <metadata tag="requester" timestamp="Tue, 18 Feb 2014 09:37:47 +0000">Zlogene</metadata>
  <metadata tag="submitter" timestamp="Sat, 08 Mar 2014 18:35:33 +0000">
    BlueKnight
  </metadata>
</glsa>