[Debian-med-packaging] Bug#1150503: dcmtk: CVE-2026-44035

[Salvatore Bonaccorso]

Source: dcmtk
Version: 3.7.0+really3.7.0-7
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security upstream
Forwarded: https://support.dcmtk.org/redmine/issues/1215

Hi,

The following vulnerability was published for dcmtk.

CVE-2026-44035[0]:
| Uncontrolled recursion in DcmDicomDir::moveRecordToTree() in
| dcmdata/libsrc/dcdicdir.cc of OFFIS DCMTK 3.7.0 allows an attacker
| to cause a denial of service (stack exhaustion and process crash)
| via a crafted DICOMDIR file with a deeply chained sequence of
| directory records linked through the Offset of Referenced Lower-
| Level Directory Entity attribute. Any application that opens the
| DICOMDIR is affected, including dcmgpdir and media viewers built on
| DCMTK. The issue is fixed in commit
| ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f.


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-2026-44035
    https://www.cve.org/CVERecord?id=CVE-2026-44035
[1] https://support.dcmtk.org/redmine/issues/1215
[2] https://github.com/DCMTK/dcmtk/commit/ca761f7f3dcaaddaa95be87cf5d736138d7c3a9f

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore