[ GLSA 200801-04 ] OpenAFS: Denial of Service

From: Pierre-Yves Rofes <py@gentoo.org>
To: gentoo-announce@gentoo.org
Cc: full-disclosure@lists.grok.org.uk,bugtraq@securityfocus.com,security-alerts@linuxsecurity.com
Subject: [ GLSA 200801-04 ] OpenAFS: Denial of Service
Date:


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Gentoo Linux Security Advisory                           GLSA 200801-04
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                                            http://security.gentoo.org/
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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-2007-6599

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

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

  http://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
security@gentoo.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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