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Bug#1146135: gimp: CVE-2026-82343

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Source: gimp
Version: 3.2.4-3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/gimp/-/work_items/16587
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for gimp.

CVE-2026-82343[0]:
| A flaw was found in the file-psd plugin in GIMP. When processing a
| specially crafted PSD image file, the plugin does not properly
| validate the channel-count parameter. This incorrect validation
| leads to improper memory bounds checking, resulting in both a heap
| out-of-bounds read and a stack out-of-bounds access. This issue can
| result in an application crash, leading to a denial of service or a
| limited information disclosure of memory contents.


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-2026-82343
    https://www.cve.org/CVERecord?id=CVE-2026-82343
[1] https://gitlab.gnome.org/GNOME/gimp/-/work_items/16587

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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Bug#1146135: gimp: CVE-2026-82343 Salvatore Bonaccorso <carnil@debian.org> - 2026-08-30 11:00 +0200

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