Ubuntu 16.04 LTS: USN-2987-1 Moderate: Libgd2 Memory Exploit

ubuntu

May 31, 2016

The GD library could be made to crash or run programs if it processed a specially crafted image file.

Summary

The GD library could be made to crash or run programs if it processed a

specially crafted image file.

Software Description:

- libgd2: GD Graphics Library

Details:

It was discovered that the GD library incorrectly handled certain color

tables in XPM images. If a user or automated system were tricked into

processing a specially crafted XPM image, an attacker could cause a denial

of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.

(CVE-2014-2497)

It was discovered that the GD library incorrectly handled certain malformed

GIF images. If a user or automated system were tricked into processing a

specially crafted GIF image, an attacker could cause a denial of service.

This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.

(CVE-2014-9709)

It was discovered that the GD library incorrectly handled memory when using

gdImageFillToBorder(). A remote attacker could possibly use this issue to

cause a denial of service. (CVE-2015-8874)

...

Read the Full Advisory

Topics Covered

security advisory software update Ubuntu memory issue Denial of Service libgd2

Update Instructions

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

Ubuntu 16.04 LTS:
  libgd3                          2.1.1-4ubuntu0.16.04.1

Ubuntu 15.10:
  libgd3                          2.1.1-4ubuntu0.15.10.1

Ubuntu 14.04 LTS:
  libgd3                          2.1.0-3ubuntu0.1

Ubuntu 12.04 LTS:
  libgd2-noxpm                    2.0.36~rc1~dfsg-6ubuntu2.1
  libgd2-xpm                      2.0.36~rc1~dfsg-6ubuntu2.1

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