CVE-2021-41687
dcmtk - security update
7.5
HIGH
CVSS 3.1
EPSS 0.18%
Description
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.
How to fix CVE-2021-41687
To remediate CVE-2021-41687, upgrade the affected package to a fixed version below.
- —upgrade to 3.6.5-1+deb11u1 or later
- —upgrade to 3.6.4-2.1+deb10u1 or later
- —upgrade to 3.6.5-1+deb11u1 or later
Is CVE-2021-41687 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 3.6.5-1+deb11u1
- from 0, < 3.6.4-2.1+deb10u1
- 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 |