USN-3410-2: GD library vulnerability

5 September 2017

libgd2 vulnerability

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

  • Ubuntu 12.04 ESM

Summary

GD library could be made to crash if it opened a specially crafted file.

Software Description

  • libgd2 - GD Graphics Library

Details

USN-3410-1 fixed a vulnerability in GD Graphics Library. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that the GD Graphics Library (aka libgd) incorrectly handled certain malformed PNG images. A remote attacker could use this issue to cause the GD Graphics Library 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
libgd-tools - 2.0.36~rc1~dfsg-6ubuntu2.6
libgd2-noxpm - 2.0.36~rc1~dfsg-6ubuntu2.6
libgd2-xpm - 2.0.36~rc1~dfsg-6ubuntu2.6

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.

References