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Gentoo Linux Security Advisory                           GLSA 201811-11
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Asterisk: Multiple vulnerabilities
     Date: November 24, 2018
     Bugs: #636972, #645710, #668848
       ID: 201811-11

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Synopsis
========

Multiple vulnerabilities have been found in Asterisk, the worst of
which could result in a Denial of Service condition.

Background
==========

A Modular Open Source PBX System.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/asterisk           < 13.23.1                 >= 13.23.1 

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

Multiple vulnerabilities have been discovered in Asterisk. Please
review the referenced CVE identifiers for details.

Impact
======

A remote attacker could cause a Denial of Service condition or conduct
information gathering.

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-13.23.1"

References
==========

[ 1 ] CVE-2017-16671
      https://nvd.nist.gov/vuln/detail/CVE-2017-16671
[ 2 ] CVE-2017-16672
      https://nvd.nist.gov/vuln/detail/CVE-2017-16672
[ 3 ] CVE-2017-17850
      https://nvd.nist.gov/vuln/detail/CVE-2017-17850
[ 4 ] CVE-2018-12227
      https://nvd.nist.gov/vuln/detail/CVE-2018-12227
[ 5 ] CVE-2018-17281
      https://nvd.nist.gov/vuln/detail/CVE-2018-17281

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

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

 https://security.gentoo.org/glsa/201811-11

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 2018 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.

https://creativecommons.org/licenses/by-sa/2.5