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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200901-11">
  <title>Avahi: Denial of service</title>
  <synopsis>
    A Denial of Service vulnerability has been discovered in Avahi.
  </synopsis>
  <product type="ebuild">avahi</product>
  <announced>2009-01-14</announced>
  <revised count="01">2009-01-14</revised>
  <bug>250913</bug>
  <access>remote</access>
  <affected>
    <package name="net-dns/avahi" auto="yes" arch="*">
      <unaffected range="ge">0.6.24</unaffected>
      <vulnerable range="lt">0.6.24</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Avahi is a system that facilitates service discovery on a local
    network.
    </p>
  </background>
  <description>
    <p>
    Hugo Dias reported a failed assertion in the
    originates_from_local_legacy_unicast_socket() function in
    avahi-core/server.c when processing mDNS packets with a source port of
    0.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could send specially crafted packets to the daemon,
    leading to its crash.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Avahi users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-dns/avahi-0.6.24"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5081">CVE-2008-5081</uri>
  </references>
  <metadata tag="requester" timestamp="2009-01-11T18:41:03Z">
    craig
  </metadata>
  <metadata tag="submitter" timestamp="2009-01-12T22:42:38Z">
    p-y
  </metadata>
  <metadata tag="bugReady" timestamp="2009-01-12T22:42:49Z">
    p-y
  </metadata>
</glsa>