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Gentoo Linux Security Advisory                           GLSA 201405-02
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: libSRTP: Denial of Service
     Date: May 03, 2014
     Bugs: #472302
       ID: 201405-02

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Synopsis
========

A vulnerability in libSRTP can result in a Denial of Service condition.

Background
==========

libSRTP is an Open-source implementation of the Secure Real-time
Transport Protocol.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-libs/libsrtp       < 1.4.4_p20121108-r1>= 1.4.4_p20121108-r1

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

A flaw was found in how the crypto_policy_set_from_profile_for_rtp()
function applies cryptographic profiles to an srtp_policy in libSRTP.

Impact
======

A remote attacker could exploit this vulnerability to crash an
application linked against libSRTP, resulting in Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libSRTP users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=net-libs/libsrtp-1.4.4_p20121108-r1"

References
==========

[ 1 ] CVE-2013-2139
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2139

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

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

 http://security.gentoo.org/glsa/glsa-201405-02.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