Description
A vulnerability was detected in OFFIS DCMTK up to 3.6.9. Affected by this issue is the function DcmByteString::makeDicomByteString of the file dcmdata/libsrc/dcbytstr.cc of the component dcmdata. The manipulation results in memory corruption. The attack can be launched remotely. Upgrading to version 3.7.0 can resolve this issue. The patch is identified as 4c0e5c10079392c594d6a7abd95dd78ac0aa556a. You should upgrade the affected component.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OFFIS | DCMTK | 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.6.6, 3.6.7, 3.6.8, 3.6.9 | 3.7.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dcmtk | 3.7.0+really3.7.0-1 | — |
| Debian 13 | dcmtk | 3.6.9-5+deb13u1 | — |
| Debian 12 | dcmtk | 3.6.7-9~deb12u4 | — |
| Debian 11 | dcmtk | 3.6.5-1+deb11u6 | DLA-4443-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | dcmtk | No fix yet | — |
| Ubuntu 26.04 LTS | dcmtk | No fix yet | — |
| Ubuntu 25.10 | dcmtk | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 22.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 20.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 18.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 16.04 LTS | dcmtk | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | dcmtk | 3.7.0-1.1 | openSUSE-SU-2026:10006-1 |
Advisories 2
- openSUSE-SU-2026:10006-1 dcmtk-3.7.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4443-1 dcmtk - security update Debian Security (DSA / DLA) · Jan 19, 2026
References
- VDB-336283 | OFFIS DCMTK dcmdata dcbytstr.cc makeDicomByteString memory corruption vdb-entry technical-description
- VDB-336283 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #705036 | OFFIS DCMTK 3.6.9 Buffer Overflow third-party-advisory
- https://support.dcmtk.org/redmine/issues/1184 issue-tracking
- https://support.dcmtk.org/redmine/projects/dcmtk/activity?from=2025-12-02 related
- https://github.com/DCMTK/dcmtk/commit/4c0e5c10079392c594d6a7abd95dd78ac0aa556a patch
- https://support.dcmtk.org/redmine/versions/19 patch