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[gentoo-announce] [ GLSA 201509-05 ] NetworkManager: Denial of Service

Posted on 24 September 2015
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201509-05
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https://security.gentoo.org/
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Severity: Normal
Title: NetworkManager: Denial of Service
Date: September 24, 2015
Bugs: #545980
ID: 201509-05

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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



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