[ GLSA 200608-21 ] Heimdal: Multiple local privilege escalation vulnerabilities

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200608-21
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Heimdal: Multiple local privilege escalation
            vulnerabilities
      Date: August 23, 2006
      Bugs: #143371
        ID: 200608-21

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Synopsis
========

Certain Heimdal components, ftpd and rcp, are vulnerable to a local
privilege escalation.

Background
==========

Heimdal is a free implementation of Kerberos 5.

Affected packages
=================

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  app-crypt/heimdal     < 0.7.2-r3                      >= 0.7.2-r3

Description
===========

The ftpd and rcp applications provided by Heimdal fail to check the
return value of calls to seteuid().

Impact
======

A local attacker could exploit this vulnerability to execute arbitrary
code with elevated privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Heimdal users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-crypt/heimdal-0.7.2-r3"

References
==========

  [ 1 ] Official advisory
        http://www.pdc.kth.se/heimdal/advisory/2006-08-08/
  [ 2 ] CVE-2006-3083
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3083
  [ 3 ] CVE-2006-3084
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3084

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200608-21.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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