Vulnerability Details : CVE-2021-41687
DCMTK through 3.6.6 does not handle memory free properly. The program malloc a heap memory for parsing data, but does not free it when error in parsing. Sending specific requests to the dcmqrdb program incur the memory leak. An attacker can use it to launch a DoS attack.
Vulnerability category: Denial of service
Products affected by CVE-2021-41687
- cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41687
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41687
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-41687
-
The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-41687
-
https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb
Fixed poss. NULL pointer dereference/double free. · DCMTK/dcmtk@a9697df · GitHubPatch;Third Party Advisory
-
https://github.com/DCMTK/dcmtk
GitHub - DCMTK/dcmtk: Official DCMTK Github MirrorProduct;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html
[SECURITY] [DLA 3847-1] dcmtk security update
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