[Pkg-gnome-extras-maintainers] Bug#1145871: gimp: CVE-2026-80101

[Salvatore Bonaccorso]

Source: gimp
Version: 3.2.4-3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/gimp/-/work_items/16583
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for gimp.

CVE-2026-80101[0]:
| A flaw was found in the file-xwd plugin in GIMP. When processing a
| specially crafted XWD image file, the plugin validates the image
| width and bytes-per-line parameters independently rather than
| ensuring their combined values are consistent with the allocated
| buffer size. This incorrect validation leads to improper bounds
| checking, causing a heap out-of-bounds read. This issue can result
| in an application crash, leading to a denial of service, or a
| limited information disclosure of heap memory contents into the
| produced image.


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-2026-80101
    https://www.cve.org/CVERecord?id=CVE-2026-80101
[1] https://gitlab.gnome.org/GNOME/gimp/-/work_items/16583
[2] https://gitlab.gnome.org/GNOME/gimp/-/commit/e78fe7ae2a8d3341f6e862c0426265791d5975e6

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore