Description
A vulnerability was identified in DCMTK up to 3.6.9. This affects an unknown function in the library dcmimage/include/dcmtk/dcmimage/diybrpxt.h of the component dcm2img. Such manipulation leads to memory corruption. Local access is required to approach this attack. The name of the patch is 7ad81d69b. It is best practice to apply a patch to resolve this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | 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 | — |
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 | 3.6.9-6 | — |
| Debian 13 | dcmtk | 3.6.9-5+deb13u1 | — |
| Debian 12 | dcmtk | 3.6.7-9~deb12u4 | — |
| Debian 11 | dcmtk | 3.6.5-1+deb11u5 | DLA-4363-1 |
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 | 3.6.9-4.1 | openSUSE-SU-2025:15504-1 |
Advisories 2
- openSUSE-SU-2025:15504-1 dcmtk-3.6.9-4.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4363-1 dcmtk - security update Debian Security (DSA / DLA) · Nov 3, 2025
References
- VDB-322023 | DCMTK dcm2img diybrpxt.h memory corruption vdb-entry
- VDB-322023 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #639772 | DCMTK v3.6.9+ DEV Segmentation fault third-party-advisory
- https://github.com/DCMTK/dcmtk/commit/7ad81d69b patch