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Status published
Unknown
CVE-2022-40188
Knot Resolver before 5.5.3 allows remote attackers to cause a...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/
- https://lists.debian.org/debian-lts-announce/2022/10/msg00008.html
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Affected Vendor
Affected Software
knot resolver, fedora, debian linux
Vulnerable Versions:
0, 35, 36, 37, 10.0
Timeline
Official Publish:
September 23rd, 2022
Last Modified:
May 27th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.