USN-5068-1: GD library vulnerabilities

Releases

• Ubuntu 21.04
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• libgd2 - GD Graphics Library

Details

It was discovered that GD Graphics Library incorrectly handled certain GD and GD2 files.
An attacker could possibly use this issue to cause a crash or expose sensitive information.
This issue only affected Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 ESM, and Ubuntu 14.04 ESM.
(CVE-2017-6363)

It was discovered that GD Graphics Library incorrectly handled certain TGA files.
An attacker could possibly use this issue to cause a denial of service or
expose sensitive information. (CVE-2021-381)

It was discovered that GD Graphics Library incorrectly handled certain files.
An attacker could possibly use this issue to cause a crash.
(CVE-2021-40145)

Update instructions

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

Ubuntu 21.04

• libgd3 - 2.3.0-2ubuntu0.1

Ubuntu 20.04

• libgd3 - 2.2.5-5.2ubuntu2.1

Ubuntu 18.04

• libgd3 - 2.2.5-4ubuntu0.5

Ubuntu 16.04

• libgd3 - 2.1.1-4ubuntu0.16.04.12+esm1
  Available with Ubuntu Pro

Ubuntu 14.04

• libgd3 - 2.1.0-3ubuntu0.11+esm2
  Available with Ubuntu Pro

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

References

• CVE-2021-40145
• CVE-2021-38115
• CVE-2017-6363