CVE-2021-41689
7.5
HIGH
CVSS 3.1
EPSS 0.11%
Description
DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.
How to fix CVE-2021-41689
To remediate CVE-2021-41689, upgrade the affected package to a fixed version below.
- Debian/dcmtk—upgrade to 3.6.5-1+deb11u1 or later
Is CVE-2021-41689 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 |