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Gentoo Linux Security Advisory                           GLSA 201412-34
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                                            https://security.gentoo.org/
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 Severity: High
    Title: NTP: Multiple vulnerabilities
     Date: December 24, 2014
     Bugs: #533076
       ID: 201412-34

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Synopsis
========

Multiple vulnerabilities have been found in NTP, the worst of which
could result in remote execution of arbitrary code.

Background
==========

NTP is a protocol designed to synchronize the clocks of computers over
a network. The net-misc/ntp package contains the official reference
implementation by the NTP Project.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/ntp                 < 4.2.8                    >= 4.2.8

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

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

Impact
======

A remote unauthenticated attacker may be able to execute arbitrary code
with the privileges of the process, cause a Denial of Service
condition, and obtain sensitive information that could assist in other
attacks.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All NTP users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/ntp-4.2.8"

References
==========

[ 1 ] CVE-2014-9293
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-9293
[ 2 ] CVE-2014-9294
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-9294
[ 3 ] CVE-2014-9295
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-9295
[ 4 ] CVE-2014-9296
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-9296

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

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

 https://security.gentoo.org/glsa/glsa-201412-34.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.

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