USN-3311-2: libnl vulnerability

Ubuntu Security Notice USN-3311-2

19th June, 2017

libnl3 vulnerability

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

  • Ubuntu 12.04 LTS


libnl could be made to run programs as an administrator.

Software description

  • libnl3 - library for dealing with netlink sockets


USN-3311-1 fixed a vulnerability in libnl. This update provides the
corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that libnl incorrectly handled memory when performing
certain operations. A local attacker could possibly use this issue to cause
libnl to crash, resulting in a denial of service, or execute arbitrary

Update instructions

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

Ubuntu 12.04 LTS:
libnl-3-200 3.2.3-2ubuntu2.1

To update your system, please follow these instructions:

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