USN-3900-1: GD vulnerabilities

Releases

• Ubuntu 18.10
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• libgd2 - GD Graphics Library

Details

It was discovered that GD incorrectly handled memory when processing
certain images. A remote attacker could use this issue with a specially
crafted image file to cause GD 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 18.10

• libgd-tools - 2.2.5-4ubuntu1.1
• libgd3 - 2.2.5-4ubuntu1.1

Ubuntu 18.04

• libgd-tools - 2.2.5-4ubuntu0.3
• libgd3 - 2.2.5-4ubuntu0.3

Ubuntu 16.04

• libgd-tools - 2.1.1-4ubuntu0.16.04.11
• libgd3 - 2.1.1-4ubuntu0.16.04.11

Ubuntu 14.04

• libgd-tools - 2.1.0-3ubuntu0.11
• libgd3 - 2.1.0-3ubuntu0.11

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

References

• CVE-2019-6977
• CVE-2019-6978