Bug#1131116: libexif: CVE-2026-32775

[Salvatore Bonaccorso]

Source: libexif
Version: 0.6.25-2
Severity: important
Tags: security upstream
Forwarded: https://github.com/libexif/libexif/issues/247
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libexif.

CVE-2026-32775[0]:
| libexif through 0.6.25 has a flaw in decoding MakerNotes. If the
| exif_mnote_data_get_value function gets passed in a 0 size, the
| passed in-buffer would be overwritten due to an integer underflow.


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-2026-32775
    https://www.cve.org/CVERecord?id=CVE-2026-32775
[1] https://github.com/libexif/libexif/issues/247
[2] https://github.com/libexif/libexif/commit/7df372e9d31d7c993a22b913c813a5f7ec4f3692

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore