Home / mailings

PDF

[USN-8583-1] GIFLIB vulnerabilities

Posted on 22 July 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8583-1
July 22, 2026

giflib vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

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

Software Description:
- 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.

Update instructions:

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

Ubuntu 26.04 LTS
giflib-tools 5.2.2-1ubuntu3.2
libgif7 5.2.2-1ubuntu3.2

Ubuntu 24.04 LTS
giflib-tools 5.2.2-1ubuntu1.2
libgif7 5.2.2-1ubuntu1.2

Ubuntu 22.04 LTS
giflib-tools 5.1.9-2ubuntu0.3
libgif7 5.1.9-2ubuntu0.3

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

References:
https://ubuntu.com/security/notices/USN-8583-1
CVE-2026-23868, CVE-2026-26740

Package Information:
https://launchpad.net/ubuntu/+source/giflib/5.2.2-1ubuntu3.2
https://launchpad.net/ubuntu/+source/giflib/5.2.2-1ubuntu1.2
https://launchpad.net/ubuntu/+source/giflib/5.1.9-2ubuntu0.3

--===============7986945983472717670==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

TOP