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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201309-01">
  <title>Cyrus-SASL: Denial of service</title>
  <synopsis>A NULL pointer dereference in Cyrus-SASL may allow remote attackers
    to cause a Denial of Service condition.
  </synopsis>
  <product type="ebuild">cyrus-sasl</product>
  <announced>2013-09-01</announced>
  <revised count="1">2013-09-01</revised>
  <bug>476764</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/cyrus-sasl" auto="yes" arch="*">
      <unaffected range="ge">2.1.26-r3</unaffected>
      <vulnerable range="lt">2.1.26-r3</vulnerable>
    </package>
  </affected>
  <background>
    <p>Cyrus-SASL is an implementation of the Simple Authentication and
      Security Layer.
    </p>
  </background>
  <description>
    <p>In the GNU C Library (glibc) from version 2.17 onwards, the crypt()
      function call can return NULL when the salt violates specifications or
      the system is in FIPS-140 mode and a DES or MD5 hashed password is
      passed. When Cyrus-SASL’s authentication mechanisms call crypt(), a
      NULL may be returned.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could trigger this vulnerability to cause a Denial of
      Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Cyrus-SASL users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-libs/cyrus-sasl-2.1.26-r3"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4122">CVE-2013-4122</uri>
  </references>
  <metadata tag="requester" timestamp="2013-08-23T14:52:45Z">
    creffett
  </metadata>
  <metadata tag="submitter" timestamp="2013-09-01T19:36:23Z">
    creffett
  </metadata>
</glsa>