CVE-2021-41690
7.5
HIGH
CVSS 3.1
EPSS 0.14%
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.
How to fix CVE-2021-41690
To remediate CVE-2021-41690, upgrade the affected package to a fixed version below.
- Debian/dcmtk—upgrade to 3.6.5-1+deb11u1 or later
Is CVE-2021-41690 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.6.5-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |