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.
Published: 2022-09-23
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3139-1 knot-resolver security update
EUVD EUVD EUVD-2022-43490 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.
Ubuntu USN Ubuntu USN USN-6225-1 Knot Resolver vulnerability
History

Tue, 27 May 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Nic Knot Resolver
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-05-27T14:55:35.830Z

Reserved: 2022-09-08T00:00:00.000Z

Link: CVE-2022-40188

cve-icon Vulnrichment

Updated: 2024-08-03T12:14:39.955Z

cve-icon NVD

Status : Modified

Published: 2022-09-23T16:15:11.673

Modified: 2025-05-27T15:15:28.160

Link: CVE-2022-40188

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses