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[ GLSA 201009-09 ] fence: Multiple symlink vulnerabilites
From: Stefan Behte <craig () gentoo org>
Date: Wed, 29 Sep 2010 22:52:00 +0200

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Gentoo Linux Security Advisory                           GLSA 201009-09
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: fence: Multiple symlink vulnerabilites
      Date: September 29, 2010
      Bugs: #240576
        ID: 201009-09

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Synopsis
========

fence contains multiple programs containing vulnerabilites that may
allow local users to overwrite arbitrary files via a symlink attack.

Background
==========

fence is an I/O group fencing system.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  sys-cluster/fence      < 2.03.09                      Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.

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

The fence_apc, fence_apc_snmp (CVE-2008-4579) and fence_manual
(CVE-2008-4580) programs contain symlink vulnerabilites.

Impact
======

These vulnerabilities may allow arbitrary files to be overwritten with
root privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

Gentoo discontinued support for fence. All fence users should uninstall
and choose another software that provides the same functionality.

    # emerge --unmerge sys-cluster/fence

References
==========

  [ 1 ] CVE-2008-4579
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4579
  [ 2 ] CVE-2008-4580
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4580

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

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

  http://security.gentoo.org/glsa/glsa-201009-09.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
https://bugs.gentoo.org.

License
=======

Copyright 2010 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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