Gentoo: 201401-09 Openswan: User-assisted execution of arbitrary code
Posted by Benjamin D. Thomas   
Gentoo A vulnerability in Openswan could result in execution of arbitrary code or Denial of Service.
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Gentoo Linux Security Advisory                           GLSA 201401-09
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Openswan: User-assisted execution of arbitrary code
     Date: January 18, 2014
     Bugs: #483204
       ID: 201401-09

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Synopsis
========

A vulnerability in Openswan could result in execution of arbitrary code
or Denial of Service.

Background
==========

Openswan is an implementation of IPsec for Linux.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/openswan            < 2.6.39                  >= 2.6.39

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

A buffer overflow flaw has been discovered in Openswan when using
Opportunistic Encryption.

Impact
======

A remote attacker could send a specially crafted DNS TXT record,
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 Openswan users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/openswan-2.6.39"

References
==========

[ 1 ] CVE-2013-2053
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2053

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

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

 http://security.gentoo.org/glsa/glsa-201401-09.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 2014 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