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Gentoo Linux Security Advisory                           GLSA 201101-05
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  Severity: Normal
     Title: OpenAFS: Arbitrary code execution
      Date: January 16, 2011
      Bugs: #265538
        ID: 201101-05

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Synopsis
========

The cache manager of OpenAFS contains several bugs resulting in remote
execution of arbitrary code.

Background
==========

OpenAFS is a distributed file system.

Affected packages
=================

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  net-fs/openafs       < 1.4.9                             >= 1.4.9

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

Two vulnerabilites were discovered:

* Simon Wilkinson discovered from a bug report by Toby Blake that the
  cache manager of OpenAFS contains a heap-based buffer overflow which
  is related to the use of the ERR_PTR macro (CVE-2009-1250).

* A pointer dereference bug when using XDR arrays was discovered by
  Simon Wilkinson, with assistance from Derrick Brashear and Jeffrey
  Altman. (CVE-2009-1251).

Impact
======

The vulnerabilites might allow remote unauthenticated attackers to
cause a Denial of Service (system crash) and possibly execute arbitrary
code.

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-1.4.9"

References
==========

  [ 1 ] CVE-2009-1250
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1250
  [ 2 ] CVE-2009-1251
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1251

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

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

  http://security.gentoo.org/glsa/glsa-201101-05.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 2011 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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