gentoo-overlay/metadata/glsa/glsa-201111-06.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201111-06">
  <title>MaraDNS: Arbitrary code execution</title>
  <synopsis>A buffer overflow vulnerability in MaraDNS allows remote attackers
    to execute arbitrary code or cause a Denial of Service.
  </synopsis>
  <product type="ebuild">MaraDNS</product>
  <announced>November 20, 2011</announced>
  <revised>November 20, 2011: 1</revised>
  <bug>352569</bug>
  <access>remote</access>
  <affected>
    <package name="net-dns/maradns" auto="yes" arch="*">
      <unaffected range="ge">1.4.06</unaffected>
      <vulnerable range="lt">1.4.06</vulnerable>
    </package>
  </affected>
  <background>
    <p>MaraDNS is a proxy DNS server with permanent caching.</p>
  </background>
  <description>
    <p>A long DNS hostname with a large number of labels could trigger a buffer
      overflow in the compress_add_dlabel_points() function of dns/Compress.c. 
    </p>
  </description>
  <impact type="high">
    <p>A remote unauthenticated attacker could execute arbitrary code or cause
      a Denial of Service.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All MaraDNS users should upgrade to the latest stable version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-dns/maradns-1.4.06"
    </code>
    
    <p>NOTE: This is a legacy GLSA. Updates for all affected architectures are
      available since February 12, 2011. It is likely that your system is
      already no longer affected by this issue.
    </p>
  </resolution>
  <references>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0520">CVE-2011-0520</uri>
  </references>
  <metadata timestamp="Fri, 07 Oct 2011 23:37:03 +0000" tag="requester">
    underling
  </metadata>
  <metadata timestamp="Sun, 20 Nov 2011 17:56:41 +0000" tag="submitter">ackle</metadata>
</glsa>