USN-3843-2: pixman vulnerability

11 December 2018

pixman vulnerability

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

  • Ubuntu 12.04 ESM


pixman could be made to crash or run programs if it processed specially crafted instructions.

Software Description

  • pixman - pixel-manipulation library for X and cairo


USN-3843-1 fixed a vulnerability in pixman. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that pixman incorrectly handled the general_composite_rect function. A remote attacker could use this issue to cause pixman to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 12.04 ESM
libpixman-1-0 - 0.30.2-1ubuntu0.

To update your system, please follow these instructions:

After a standard system update you need to restart your session to make all the necessary changes.