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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200404-05">
  <title>ipsec-tools contains an X.509 certificates vulnerability.</title>
  <synopsis>
    ipsec-tools contains a vulnerability that affects connections authenticated 
    with X.509 certificates.
  </synopsis>
  <product type="ebuild">ipsec-tools</product>
  <announced>2004-04-07</announced>
  <revised count="01">2004-04-07</revised>
  <bug>47013</bug>
  <access>remote</access>
  <affected>
    <package name="net-firewall/ipsec-tools" auto="yes" arch="amd64">
      <unaffected range="ge">0.2.5</unaffected>
      <vulnerable range="le">0.2.4</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    From http://ipsec-tools.sourceforge.net/ :
    </p>
    <p>
    "IPsec-Tools is a port of KAME's IPsec utilities to the Linux-2.6
    IPsec implementation."
    </p>
  </background>
  <description>
    <p>
    <i>racoon</i> (a utility in the ipsec-tools package) does not verify digital
    signatures on Phase1 packets.  This means  that anybody holding the correct
    X.509 certificate would be able to establish a connection, even if they did
    not have the corresponding private key.
    </p>
  </description>
  <impact type="high">
    <p>
    Since digital signatures are not verified by the <i>racoon</i> tool, an attacker may
	be able to connect to the VPN gateway and/or execute a man-in-the-middle attack.
    </p>
  </impact>
  <workaround>
    <p>
    A workaround is not currently known for this issue. All users are advised
    to upgrade to the latest version of the affected package.
    </p>
  </workaround>
  <resolution>
    <p>
    ipsec-tools users should upgrade to version 0.2.5 or later:
    </p>
    <code>
    # emerge sync
 
    # emerge -pv "&gt;=net-firewall/ipsec-tools-0.2.5"
    # emerge "&gt;=net-firewall/ipsec-tools-0.2.5"</code>
  </resolution>
  <references>
  </references>
  <metadata tag="submitter">klieber</metadata>
</glsa>