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Gentoo Linux Security Advisory                           GLSA 201710-27
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Dnsmasq: Multiple vulnerabilities
     Date: October 23, 2017
     Bugs: #632692
       ID: 201710-27

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Synopsis
========

Multiple vulnerabilities have been found in Dnsmasq, the worst of which
may allow remote attackers to execute arbitrary code.

Background
==========

Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP
server.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-dns/dnsmasq               < 2.78                     >= 2.78 

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

Multiple vulnerabilities have been discovered in Dnsmasq. Please review
the references below for details.

Impact
======

A remote attacker could execute arbitrary code or cause a Denial of
Service condition via crafted DNS, IPv6, or DHCPv6 packets.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Dnsmasq users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"

References
==========

[ 1 ] CVE-2017-14491
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491
[ 2 ] CVE-2017-14492
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492
[ 3 ] CVE-2017-14493
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493
[ 4 ] CVE-2017-14494
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494
[ 5 ] CVE-2017-14495
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495
[ 6 ] CVE-2017-14496
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496

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

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

 https://security.gentoo.org/glsa/201710-27

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 2017 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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