gentoo-overlay/metadata/glsa/glsa-201207-06.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201207-06">
  <title>JRuby: Denial of service</title>
  <synopsis>A hash collision vulnerability in JRuby allows remote attackers to
    cause a Denial of Service condition.
  </synopsis>
  <product type="ebuild">jruby</product>
  <announced>2012-07-09</announced>
  <revised count="1">2012-07-09</revised>
  <bug>396305</bug>
  <access>remote</access>
  <affected>
    <package name="dev-java/jruby" auto="yes" arch="*">
      <unaffected range="ge">1.6.5.1</unaffected>
      <vulnerable range="lt">1.6.5.1</vulnerable>
    </package>
  </affected>
  <background>
    <p>JRuby is a Java-based Ruby interpreter implementation.</p>
  </background>
  <description>
    <p>JRuby does not properly randomize hash functions to protect against hash
      collision attacks.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could send a specially crafted input, 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 JRuby users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=dev-java/jruby-1.6.5.1"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4838">CVE-2011-4838</uri>
  </references>
  <metadata timestamp="2012-06-11T19:25:16Z" tag="requester">ackle</metadata>
  <metadata timestamp="2012-07-09T22:35:40Z" tag="submitter">ackle</metadata>
</glsa>