Vulnerability Description
DCMTK through 3.6.6 does not handle memory free properly. The malloced memory for storing all file information are recorded in a global variable LST and are not freed properly. Sending specific requests to the dcmqrdb program can incur a memory leak. 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/a9697dfeb672b0b9412c00c7d36d801e27ec85cbPatchThird 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/a9697dfeb672b0b9412c00c7d36d801e27ec85cbPatchThird 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-2021-41690?
CVE-2021-41690 is a vulnerability with a CVSS score of 7.5 (HIGH). DCMTK through 3.6.6 does not handle memory free properly. The malloced memory for storing all file information are recorded in a global variable LST and are not freed properly. Sending specific reques...
How severe is CVE-2021-41690?
CVE-2021-41690 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-2021-41690?
Check the references section above for vendor advisories and patch information. Affected products include: Offis Dcmtk.