CVEvulnerability
CVE-2021-41689
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-06-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-476
Description
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.
Affected configurations
• offis dcmtk (<= 3.6.6)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://github.com/DCMTK/dcmtk Product, Third Party Advisory
- https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html lists.debian.org
- https://github.com/DCMTK/dcmtk Product, Third Party Advisory
- https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html lists.debian.org