glsa-200504-28.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200504-28">
  <title>Heimdal: Buffer overflow vulnerabilities</title>
  <synopsis>
    Buffer overflow vulnerabilities have been found in the telnet client in
    Heimdal which could lead to execution of arbitrary code.
  </synopsis>
  <product type="ebuild">Heimdal</product>
  <announced>2005-04-28</announced>
  <revised count="01">2005-04-28</revised>
  <bug>89861</bug>
  <access>remote</access>
  <affected>
    <package name="app-crypt/heimdal" auto="yes" arch="*">
      <unaffected range="ge">0.6.4</unaffected>
      <vulnerable range="lt">0.6.4</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Heimdal is a free implementation of Kerberos 5 that includes a
    telnet client program.
    </p>
  </background>
  <description>
    <p>
    Buffer overflow vulnerabilities in the slc_add_reply() and
    env_opt_add() functions have been discovered by Gael Delalleau in the
    telnet client in Heimdal.
    </p>
  </description>
  <impact type="normal">
    <p>
    Successful exploitation would require a vulnerable user to connect
    to an attacker-controlled host using the telnet client, potentially
    executing arbitrary code with the permissions of the user running the
    application.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Heimdal users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=app-crypt/heimdal-0.6.4"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0468">CAN-2005-0468</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0469">CAN-2005-0469</uri>
  </references>
  <metadata tag="requester" timestamp="2005-04-26T20:42:17Z">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="2005-04-27T00:18:43Z">
    formula7
  </metadata>
  <metadata tag="bugReady" timestamp="2005-04-28T08:35:57Z">
    koon
  </metadata>
</glsa>