USN-3843-2: pixman vulnerability

11 December 2018

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

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Releases

Packages

  • pixman - pixel-manipulation library for X and cairo

Details

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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 12.04

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

References