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[gentoo-announce] [ GLSA 201101-05 ] OpenAFS: Arbitrary code execution

Posted on 16 January 2011
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201101-05
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http://security.gentoo.org/
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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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