USN-4040-2: Expat vulnerability

expat vulnerability

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

Expat could be made to consume a high amount of RAM and CPU
resources if it received a specially crafted XML file.

USN-4040-1 fixed a vulnerability in expat. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Expat incorrectly handled certain XML files.
An attacker could possibly use this issue to cause a denial of service.

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

Ubuntu 14.04 ESM: lib64expat1 – 2.1.0-4ubuntu1.4+esm1; libexpat1 – 2.1.0-4ubuntu1.4+esm1
Ubuntu 12.04 ESM: lib64expat1 – 2.0.1-7.2ubuntu1.6; libexpat1 – 2.0.1-7.2ubuntu1.6

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.