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[gentoo-announce] [ GLSA 201009-09 ] fence: Multiple symlink vulnerabilites

Posted on 29 September 2010
Gentoo-announce

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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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