Description
A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.
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 | 3.6.9-4 | — |
| Debian 13 | dcmtk | 3.6.9-4 | — |
| Debian 12 | dcmtk | 3.6.7-9~deb12u3 | — |
| 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 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP6 | dcmtk | 3.6.9-bp156.4.6.1 | openSUSE-SU-2025:0068-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | dcmtk | 3.6.9-2.1 | openSUSE-SU-2025:14823-1 |
| openSUSE Leap 15.6 | dcmtk | 3.6.9-bp156.4.6.1 | openSUSE-SU-2025:0068-1 |
Advisories 3
- DLA-4227-1 dcmtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2025:14823-1 dcmtk-3.6.9-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:0068-1 Security update for dcmtk SUSE / openSUSE Security Updates · Feb 4, 2026