glsa-201207-07.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201207-07">
  <title>Keepalived: Denial of Service</title>
  <synopsis>Keepalived uses world-writable PID files, allowing a local attacker
    to kill arbitrary processes.
  </synopsis>
  <product type="ebuild">keepalived</product>
  <announced>2012-07-09</announced>
  <revised>2012-07-09: 1</revised>
  <bug>371469</bug>
  <access>local</access>
  <affected>
    <package name="sys-cluster/keepalived" auto="yes" arch="*">
      <unaffected range="ge">1.2.2-r3</unaffected>
      <vulnerable range="lt">1.2.2-r3</vulnerable>
    </package>
  </affected>
  <background>
    <p>Keepalived is a strong &amp; robust keepalive facility to the Linux
      Virtual Server project.
    </p>
  </background>
  <description>
    <p>The "pidfile_write()" function in pidfile.c in Keepalived writes PID
      files with insecure permissions.
    </p>
  </description>
  <impact type="normal">
    <p>A local attacker may be able to cause a Denial of Service of arbitrary
      processes.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Keepalived users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=sys-cluster/keepalived-1.2.2-r3"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1784">CVE-2011-1784</uri>
  </references>
  <metadata timestamp="2012-06-11T19:50:31Z" tag="requester">ackle</metadata>
  <metadata timestamp="2012-07-09T23:28:51Z" tag="submitter">ackle</metadata>
</glsa>