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[gentoo-announce] [ GLSA 201202-08 ] stunnel: Arbitrary code execution

Posted on 29 February 2012
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201202-08
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http://security.gentoo.org/
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Severity: Normal
Title: stunnel: Arbitrary code execution
Date: February 29, 2012
Bugs: #379859
ID: 201202-08

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Synopsis
========
A vulnerability was found in stunnel, allowing remote attackers to
cause a Denial of Service and potentially arbitrary code execution.

Background
==========
The stunnel program is designed to work as an SSL encryption wrapper
between a client and a local or remote server.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/stunnel < 4.44 >= 4.44

Description
===========
An unspecified heap vulnerability was discovered in stunnel.

Impact
======
The vulnerability may possibly be leveraged to perform remote code
execution or a Denial of Service attack.

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

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/stunnel-4.44"

References
==========
[ 1 ] CVE-2011-2940
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2940

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

http://security.gentoo.org/glsa/glsa-201202-08.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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