[From nobody Sat Sep 12 12:53:15 2026
Received: (at submit) by bugs.debian.org; 27 Aug 2026 14:52:22 +0000
X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02
 (2024-03-25) on buxtehude.debian.org
X-Spam-Level: 
X-Spam-Status: No, score=-10.9 required=4.0 tests=BAYES_00,FOURLA,
 FROMDEVELOPER,MD5_SHA1_SUM,NO_RELAYS,XMAILER_REPORTBUG autolearn=ham
 autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02
X-Spam-Bayes: score:0.0000 Tokens: new, 21; hammy, 149; neutral, 59; spammy,
 1. spammytokens:0.956-+--visit hammytokens:0.000-+--XDebbugsCc,
 0.000-+--X-Debbugs-Cc, 0.000-+--H*F:U*carnil, 0.000-+--H*Ad:N*Bug,
 0.000-+--HTo:N*Debian
Return-path: <carnil@debian.org>
Received: via submission by buxtehude.debian.org with esmtp (Exim 4.96)
 (envelope-from <carnil@debian.org>) id 1wzbSm-00C527-15
 for submit@bugs.debian.org; Thu, 27 Aug 2026 14:52:22 +0000
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: gimp: CVE-2026-18308
Message-ID: <178784233899.341759.2548259266995852828.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0+nmu1
Date: Thu, 27 Aug 2026 16:52:18 +0200
Delivered-To: submit@bugs.debian.org

Source: gimp
Version: 3.2.4-3
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for gimp.

CVE-2026-18308[0]:
| GIMP TIF File Parsing Integer Overflow Remote Code Execution
| Vulnerability. This vulnerability allows remote attackers to execute
| arbitrary code on affected installations of GIMP. User interaction
| is required to exploit this vulnerability in that the target must
| visit a malicious page or open a malicious file.  The specific flaw
| exists within the parsing of TIF files. The issue results from the
| lack of proper validation of user-supplied data, which can result in
| an integer overflow before allocating a buffer. An attacker can
| leverage this vulnerability to execute code in the context of the
| current process. Was ZDI-CAN-29405.


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-2026-18308
    https://www.cve.org/CVERecord?id=CVE-2026-18308
[1] https://www.zerodayinitiative.com/advisories/ZDI-26-461/
[2] https://gitlab.gnome.org/GNOME/gimp/-/commit/d84f8e58f56681a0b4c66129c568cb796725ab9d

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
]