CVE-2021-40083

HIGH

7.5

Description

Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published8/25/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

nic:knot_resolver

Weaknesses (CWE)

CWE-617

References

https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169(cve@mitre.org)

https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1169(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.