CVE-2023-26249 - Vulnerability Details - OpenCVE

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Nic	Knot Resolver

Configuration 1 [-]

cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html

History

Fri, 14 Mar 2025 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-02-21T00:00:00.000Z

Updated: 2025-03-14T18:32:24.994Z

Reserved: 2023-02-21T00:00:00.000Z

Link: CVE-2023-26249

Vulnrichment

Updated: 2024-08-02T11:46:23.483Z

NVD

Status : Modified

Published: 2023-02-21T02:15:10.293

Modified: 2025-03-14T19:15:41.807

Link: CVE-2023-26249

Redhat

No data.

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