Description
A vulnerability was found in DCMTK 3.6.9. It has been declared as critical. This vulnerability affects unknown code of the component dcmjpls JPEG-LS Decoder. The manipulation leads to memory corruption. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 3239a7915. It is recommended to apply a patch to fix this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | DCMTK | 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 | 3.6.9-5 | — |
| Debian 13 | dcmtk | 3.6.9-5 | — |
| Debian 12 | dcmtk | 3.6.7-9~deb12u4 | — |
| Debian 11 | dcmtk | 3.6.5-1+deb11u4 | DLA-4227-1 |
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 | 3.6.9-3.1 | openSUSE-SU-2025:14901-1 |
Advisories 2
- DLA-4227-1 dcmtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2025:14901-1 dcmtk-3.6.9-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- VDB-299824 | DCMTK dcmjpls JPEG-LS Decoder memory corruption vdb-entry
- VDB-299824 | CTI Indicators (IOB, IOC) signature permissions-required
- Submit #513692 | DCMTK v3.6.9+DEV segmentation fault third-party-advisory
- https://support.dcmtk.org/redmine/issues/1155 exploit issue-tracking
- https://support.dcmtk.org/redmine/issues/1155?tab=history#note-1 issue-tracking patch