OpenAFS: Denial of Service

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Gentoo Linux Security Advisory                          
GLSA 200801-04
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                                            http://security.gentoo.or
g/
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  Severity: Normal
     Title: OpenAFS: Denial of Service
      Date: January 09, 2008
      Bugs: #203573
        ID: 200801-04

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Synopsis
========

A Denial of Service vulnerability has been discovered in
OpenAFS.

Background
==========

OpenAFS is a distributed network filesystem.

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

   
------------------------------------------------------------
-------
     Package         /  Vulnerable  /                      
Unaffected
   
------------------------------------------------------------
-------
  1  net-fs/openafs       < 1.4.6                        
    >= 1.4.6

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

Russ Allbery, Jeffrey Altman, Dan Hyde and Thomas Mueller
discovered a
race condition due to an improper handling of the clients
callbacks
lists.

Impact
======

A remote attacker could construct cases which trigger the
race
condition, resulting in a server crash.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All OpenAFS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=net-fs/openafs-1.4.6"

References
==========

  [ 1 ] CVE-2007-6599
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-200
7-6599

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

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

  ht
tp://security.gentoo.org/glsa/glsa-200801-04.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
securitygentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 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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