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Gentoo Linux Security Advisory                           GLSA 201206-33
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                                            http://security.gentoo.org/
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 Severity: High
    Title: Postfix: Multiple vulnerabilities
     Date: June 25, 2012
     Bugs: #358085, #366605
       ID: 201206-33

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Synopsis
========

A vulnerability has been found in Postfix, the worst of which possibly
allowing remote code execution.

Background
==========

Postfix is Wietse Venema’s mailer that attempts to be fast, easy to
administer, and secure, as an alternative to the widely-used Sendmail
program.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  mail-mta/postfix             < 2.7.4                    >= 2.7.4

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

A vulnerability have been discovered in Postfix. Please review the CVE
identifier referenced below for details.

Impact
======

An attacker could perform a man-in-the-middle attack and inject SMTP
commands during the plaintext to TLS session switch or might execute
arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Postfix users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=mail-mta/postfix-2.7.4"

References
==========

[ 1 ] CVE-2011-0411
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0411
[ 2 ] CVE-2011-1720
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1720

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

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

 http://security.gentoo.org/glsa/glsa-201206-33.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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