metadata/glsa/glsa-200407-17.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200407-17">
  <title>l2tpd: Buffer overflow</title>
  <synopsis>
    A buffer overflow in l2tpd could lead to remote code execution. It is not
    known whether this bug is exploitable.
  </synopsis>
  <product type="ebuild">net-dialup/l2tpd</product>
  <announced>July 22, 2004</announced>
  <revised>July 22, 2004: 01</revised>
  <bug>53009</bug>
  <access>remote</access>
  <affected>
    <package name="net-dialup/l2tpd" auto="yes" arch="*">
      <unaffected range="ge">0.69-r2</unaffected>
      <vulnerable range="lt">0.69-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    l2tpd is a GPL implentation of the Layer 2 Tunneling Protocol.
    </p>
  </background>
  <description>
    <p>
    Thomas Walpuski discovered a buffer overflow that may be exploitable by
    sending a specially crafted packet. In order to exploit the vulnerable
    code, an attacker would need to fake the establishment of an L2TP tunnel.
    </p>
  </description>
  <impact type="high">
    <p>
    A remote attacker may be able to execute arbitrary code with the privileges
    of the user running l2tpd.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround for this vulnerability.
    </p>
  </workaround>
  <resolution>
    <p>
    All users are recommended to upgrade to the latest stable version:
    </p>
    <code>
    # emerge sync

    # emerge -pv ">=net-l2tpd-0.69-r2"
    # emerge ">=net-l2tpd-0.69-r2"</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0649">CAN-2004-0649</uri>
    <uri link="http://seclists.org/lists/fulldisclosure/2004/Jun/0094.html">Full Disclosure Report</uri>
  </references>
  <metadata tag="requester">
    koon
  </metadata>
  <metadata tag="submitter">
    dmargoli
  </metadata>
</glsa>