CVE-2022-40188
knot-resolver - security update
7.5
HIGH
CVSS 3.1
EPSS 0.29%
Description
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
How to fix CVE-2022-40188
To remediate CVE-2022-40188, upgrade the affected package to a fixed version below.
- Debian/knot-resolver—no fix listed
- —upgrade to 3.2.1-3+deb10u1 or later
Is CVE-2022-40188 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 3.2.1-3+deb10u1
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 |