GLSA 201509-05: NetworkManager: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	NetworkManager: Denial of Service
Date:	09/24/2015
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	Architecture(s)
net-misc/networkmanager	< 1.0.2	>= 1.0.2	All supported architectures

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

CVE-2015-2924

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201509-05.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.