Bug#1120700: openexr: CVE-2025-64181

[Salvatore Bonaccorso]

Source: openexr
Version: 3.1.13-2
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for openexr.

CVE-2025-64181[0]:
| OpenEXR provides the specification and reference implementation of
| the EXR file format, an image storage format for the motion picture
| industry. In versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2,
| while fuzzing `openexr_exrcheck_fuzzer`, Valgrind reports a
| conditional branch depending on uninitialized data inside
| `generic_unpack`. This indicates a use of uninitialized memory. The
| issue can result in undefined behavior and/or a potential
| crash/denial of service. Versions 3.3.6 and 3.4.3 fix the issue.


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-2025-64181
    https://www.cve.org/CVERecord?id=CVE-2025-64181
[1] https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3h9h-qfvw-98hq
[2] https://github.com/AcademySoftwareFoundation/openexr/commit/72aa3e78acfb99eacae8bfae8bf4e4831634db11

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore