[Pkg-gnome-extras-maintainers] Bug#1143023: gimp: CVE-2026-59089

[Salvatore Bonaccorso]

Source: gimp
Version: 3.2.4-3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/gimp/-/work_items/16493
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for gimp.

CVE-2026-59089[0]:
| A flaw was found in GIMP. The PlayStation TIM loader, responsible
| for handling PlayStation image files, incorrectly calculates the
| size of the Color Look-Up Table (CLUT) due to an integer overflow.
| This occurs when multiplying num_colors and num_cluts, both 16-bit
| unsigned short integers, resulting in a value exceeding the maximum
| integer limit. An attacker could exploit this by providing a
| specially crafted image file, leading to undefined behavior and
| causing the GIMP plug-in to abort, effectively resulting in a denial
| of service.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-59089
    https://www.cve.org/CVERecord?id=CVE-2026-59089
[1] https://gitlab.gnome.org/GNOME/gimp/-/work_items/16493
[2] https://gitlab.gnome.org/GNOME/gimp/-/commit/53cdb27fa2b1676d11e9677c9975b5ad7b61b2ee

Regards,
Salvatore