what you don't know can hurt you

Ubuntu Security Notice USN-2980-1

Ubuntu Security Notice USN-2980-1
Posted May 17, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2980-1 - Julien Bernard discovered that libndp incorrectly performed origin checks when receiving Neighbor Discovery Protocol (NDP) messages. A remote attacker outside of the local network could use this issue to advertise a node as a router, causing a denial of service, or possibly to act as a man in the middle.

tags | advisory, remote, denial of service, local, protocol
systems | linux, ubuntu
advisories | CVE-2016-3698
MD5 | 67046211a84a6ebb05742b2bf2b8c591

Ubuntu Security Notice USN-2980-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-2980-1
May 17, 2016

libndp vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS
- Ubuntu 15.10

Summary:

libndp could be tricked into accepting an NDP message from outside the
local network.

Software Description:
- libndp: Library for Neighbor Discovery Protocol

Details:

Julien Bernard discovered that libndp incorrectly performed origin checks
when receiving Neighbor Discovery Protocol (NDP) messages. A remote
attacker outside of the local network could use this issue to advertise a
node as a router, causing a denial of service, or possibly to act as a man
in the middle.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
libndp0 1.4-2ubuntu0.16.04.1

Ubuntu 15.10:
libndp0 1.4-2ubuntu0.15.10.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2980-1
CVE-2016-3698

Package Information:
https://launchpad.net/ubuntu/+source/libndp/1.4-2ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/libndp/1.4-2ubuntu0.15.10.1


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