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From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: openexr: CVE-2026-34544
Message-ID: <177520743681.228023.6181437404788766896.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0
Date: Fri, 03 Apr 2026 11:10:36 +0200
Delivered-To: submit@bugs.debian.org

Source: openexr
Version: 3.4.6+ds-4
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for openexr.

CVE-2026-34544[0]:
| OpenEXR provides the specification and reference implementation of
| the EXR file format, an image storage format for the motion picture
| industry. From version 3.4.0 to before version 3.4.8, a crafted B44
| or B44A EXR file can cause an out-of-bounds write in any application
| that decodes it via exr_decoding_run(). Consequences range from
| immediate crash (most likely) to corruption of adjacent heap
| allocations (layout-dependent). This issue has been patched in
| version 3.4.8.


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-2026-34544
    https://www.cve.org/CVERecord?id=CVE-2026-34544
[1] https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h762-rhv3-h25v
[2] https://github.com/AcademySoftwareFoundation/openexr/commit/35e7aa35e22c1975606be86e859f31cc1fc598ee

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
]