- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201509-05
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: NetworkManager: Denial of Service
     Date: September 24, 2015
     Bugs: #545980
       ID: 201509-05

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Improper handling of Router Advertisements in NetworkManager could
cause a Denial of Service condition in IPv6 network stacks.

Background
==========

NetworkManager is an universal network configuration daemon for
laptops, desktops, servers and virtualization hosts.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/networkmanager      < 1.0.2                    >= 1.0.2

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

IPv6 Neighbour Discovery ICMP broadcast containing a non-route with a
low hop limit causes a Denial of Service by lowering the hop limit on
existing IPv6 routes in NetworkManager.

Impact
======

A remote attacker on the same network segment could cause a Denial of
Service condition in NetworkManager

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All NetworkManager users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/networkmanager-1.0.2"

References
==========

[ 1 ] CVE-2015-2924
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-2924

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

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

 https://security.gentoo.org/glsa/201509-05

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 2015 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