USN-6824-1: GIFLIB vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• giflib - library for GIF images (utilities)

Details

It was discovered that GIFLIB incorrectly handled certain GIF files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2021-40633, CVE-2022-28506, CVE-2023-39742)

Update instructions

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

Ubuntu 23.10

• giflib-tools - 5.2.1-2.5ubuntu0.1

Ubuntu 22.04

• giflib-tools - 5.1.9-2ubuntu0.1

Ubuntu 20.04

• giflib-tools - 5.1.9-1ubuntu0.1

Ubuntu 18.04

• giflib-tools - 5.1.4-2ubuntu0.1+esm1
  Available with Ubuntu Pro

Ubuntu 16.04

• giflib-tools - 5.1.4-0.3~16.04.1+esm1
  Available with Ubuntu Pro

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

References

• CVE-2023-39742
• CVE-2021-40633
• CVE-2022-28506