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To: gentoo-announce@g.o
From: Sean Amoss <ackle@g.o>
Subject: [ GLSA 201202-06 ] Asterisk: Denial of Service
Date: Wed, 22 Feb 2012 15:47:26 -0500
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Gentoo Linux Security Advisory                           GLSA 201202-06
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Asterisk: Denial of Service
     Date: February 22, 2012
     Bugs: #399507
       ID: 201202-06

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Synopsis
========

A vulnerability in Asterisk could allow a remote attacker to cause a
Denial of Service condition.

Background
==========

Asterisk is an open source telephony engine and toolkit.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/asterisk           < 1.8.8.2                 >= 1.8.8.2

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

A vulnerability has been found in Asterisk's handling of certain
encrypted streams where the res_srtp module has been loaded but video
support has not been enabled.

Impact
======

A remote attacker could send a specially crafted SDP message to the
Asterisk daemon, possibly resulting in a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Asterisk users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.8.2"

References
==========

[ 1 ] CVE-2012-0885
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0885

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

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

 http://security.gentoo.org/glsa/glsa-201202-06.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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