glsa-200409-19.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200409-19">
  <title>Heimdal: ftpd root escalation</title>
  <synopsis>
    Several bugs exist in the Heimdal ftp daemon which could allow a remote
    attacker to gain root privileges.
  </synopsis>
  <product type="ebuild">heimdal</product>
  <announced>2004-09-16</announced>
  <revised count="01">2004-09-16</revised>
  <bug>61412</bug>
  <access>remote</access>
  <affected>
    <package name="app-crypt/heimdal" auto="yes" arch="*">
      <unaffected range="ge">0.6.3</unaffected>
      <vulnerable range="lt">0.6.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Heimdal is an implementation of Kerberos 5.
    </p>
  </background>
  <description>
    <p>
    Przemyslaw Frasunek discovered several flaws in lukemftpd, which also apply
    to Heimdal ftpd's out-of-band signal handling code.
    </p>
    <p>
    Additionally, a potential vulnerability that could lead to Denial of
    Service by the Key Distribution Center (KDC) has been fixed in this
    version.
    </p>
  </description>
  <impact type="high">
    <p>
    A remote attacker could be able to run arbitrary code with escalated
    privileges, which can result in a total compromise of the server.
    </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 -pv "&gt;=app-crypt/heimdal-0.6.3"
    # emerge "&gt;=app-crypt/heimdal-0.6.3"</code>
  </resolution>
  <references>
    <uri link="https://www.pdc.kth.se/heimdal/advisory/2004-09-13/">Heimdal advisory</uri>
    <uri link="http://www.frasunek.com/lukemftpd.txt">Advisory by Przemyslaw Frasunek</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0794">CAN-2004-0794</uri>
  </references>
  <metadata tag="submitter" timestamp="2004-09-13T14:06:46Z">
    vorlon078
  </metadata>
  <metadata tag="bugReady" timestamp="2004-09-16T04:33:06Z">
    jaervosz
  </metadata>
</glsa>