DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dcmtk | Offis | * | 3.6.6 (including) |
| Dcmtk | Ubuntu | bionic | * |
| Dcmtk | Ubuntu | esm-apps/bionic | * |
| Dcmtk | Ubuntu | esm-apps/focal | * |
| Dcmtk | Ubuntu | esm-apps/jammy | * |
| Dcmtk | Ubuntu | esm-apps/xenial | * |
| Dcmtk | Ubuntu | focal | * |
| Dcmtk | Ubuntu | impish | * |
| Dcmtk | Ubuntu | jammy | * |
| Dcmtk | Ubuntu | upstream | * |
Potential Mitigations
References
- https://github.com/DCMTK/dcmtk
- https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d
- https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html
- https://github.com/DCMTK/dcmtk
- https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d
- https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html