Vulnerability Description
DCMTK through 3.6.6 does not handle memory free properly. The object in the program is free but its address is still used in other locations. Sending specific requests to the dcmqrdb program will incur a double free. 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-2021-41688?
CVE-2021-41688 is a vulnerability with a CVSS score of 7.5 (HIGH). DCMTK through 3.6.6 does not handle memory free properly. The object in the program is free but its address is still used in other locations. Sending specific requests to the dcmqrdb program will incu...
How severe is CVE-2021-41688?
CVE-2021-41688 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-2021-41688?
Check the references section above for vendor advisories and patch information. Affected products include: Offis Dcmtk.