Vulnerability Details : CVE-2021-41690
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.
Vulnerability category: Denial of service
Products affected by CVE-2021-41690
- cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41690
0.17%
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-2021-41690
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-2021-41690
-
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-2021-41690
-
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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