Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Offis | Dcmtk | <= 3.6.6 |
Related Weaknesses (CWE)
References
- https://github.com/DCMTK/dcmtkProductThird Party Advisory
- https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920dPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html
- https://github.com/DCMTK/dcmtkProductThird Party Advisory
- https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920dPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html
FAQ
What is CVE-2021-41689?
CVE-2021-41689 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2021-41689?
CVE-2021-41689 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41689?
Check the references section above for vendor advisories and patch information. Affected products include: Offis Dcmtk.