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[gentoo-announce] [ GLSA 201209-19 ] NUT: Arbitrary code execution

Posted on 27 September 2012
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201209-19
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http://security.gentoo.org/
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Severity: High
Title: NUT: Arbitrary code execution
Date: September 27, 2012
Bugs: #419377
ID: 201209-19

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Synopsis
========
A buffer overflow in NUT might allow remote attackers to execute
arbitrary code.

Background
==========
Network UPS Tools (NUT) provide support for power devices.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-power/nut < 2.6.3 >= 2.6.3

Description
===========
An error in the addchar() function in parseconf.c may cause a buffer
overflow.

Impact
======
A remote attacker could send a specially crafted string to upsd,
possibly resulting in execution of arbitrary code with the privileges
of the process or a Denial of Service condition.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All NUT users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-power/nut-2.6.3"

References
==========
[ 1 ] CVE-2012-2944
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2944

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

http://security.gentoo.org/glsa/glsa-201209-19.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 2012 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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