USN-8583-1: GIFLIB vulnerabilities

Publication date

22 July 2026

Overview

GIFLIB could be made to crash or run programs if it opened a specially crafted file.


Packages

  • giflib - library for GIF images

Details

It was discovered that GIFLIB incorrectly handled certain GIF image files.
If a user or automated system were tricked into opening a specially crafted
GIF file, a remote attacker could use this issue to cause GIFLIB to crash,
resulting in a denial of service, or possibly execute arbitrary code.

It was discovered that GIFLIB incorrectly handled certain GIF image files.
If a user or automated system were tricked into opening a specially crafted
GIF file, a remote attacker could use this issue to cause GIFLIB to crash,
resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
26.04 LTS resolute giflib-tools –  5.2.2-1ubuntu3.2
libgif7 –  5.2.2-1ubuntu3.2
24.04 LTS noble giflib-tools –  5.2.2-1ubuntu1.2
libgif7 –  5.2.2-1ubuntu1.2
22.04 LTS jammy giflib-tools –  5.1.9-2ubuntu0.3
libgif7 –  5.1.9-2ubuntu0.3

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