glsa-201402-25.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201402-25">
  <title>OpenSSL: Denial of Service</title>
  <synopsis>A vulnerability in OpenSSL's handling of TLS handshakes could
    result in a Denial of Service condition.
  </synopsis>
  <product type="ebuild">openssl</product>
  <announced>2014-02-21</announced>
  <revised count="1">2014-02-21</revised>
  <bug>497838</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/openssl" auto="yes" arch="*">
      <unaffected range="ge">1.0.1f</unaffected>
      <unaffected range="lt">1.0.1</unaffected>
      <vulnerable range="lt">1.0.1f</vulnerable>
    </package>
  </affected>
  <background>
    <p>OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
      (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
      purpose cryptography library.
    </p>
  </background>
  <description>
    <p>A flaw in the ssl3_take_mac function can result in a NULL pointer
      dereference.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could send a specially crafted TLS handshake,
      resulting in a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All OpenSSL 1.0.1 users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-libs/openssl-1.0.1f"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4353">CVE-2013-4353</uri>
  </references>
  <metadata tag="requester" timestamp="2014-01-28T06:18:59Z">
    BlueKnight
  </metadata>
  <metadata tag="submitter" timestamp="2014-02-21T15:36:48Z">
    BlueKnight
  </metadata>
</glsa>