CVE-2021-41688
7.5
HIGH
CVSS 3.1
EPSS 0.14%
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.
How to fix CVE-2021-41688
To remediate CVE-2021-41688, upgrade the affected package to a fixed version below.
- Debian/dcmtk—upgrade to 3.6.5-1+deb11u1 or later
Is CVE-2021-41688 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 |