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To: gentoo-announce@g.o
From: Stefan Behte <craig@g.o>
Subject: [ GLSA 201202-08 ] stunnel: Arbitrary code execution
Date: Wed, 29 Feb 2012 18:23:48 +0100
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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@g.o 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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Updated Jun 25, 2012

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