CVE-2021-40083
- Source
- https://cve.org/CVERecord?id=CVE-2021-40083
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-40083.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-40083
- Downstream
- Published
- 2021-08-25T01:15:11.087Z
- Modified
- 2025-11-14T12:19:43.468453Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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).
- References
Affected packages
Git / github.com/cz-nic/knot-resolver
Affected ranges
- Type
- GIT
- Repo
- https://github.com/cz-nic/knot-resolver
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
1.*
1.3.0-rc1
v1.*
v1.0.0
v1.0.0-beta1
v1.0.0-beta2
v1.0.0-beta3
v1.1.0
v1.1.1
v1.2.0
v1.2.0-rc1
v1.2.0-rc2
v1.2.0-rc3
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.99.1-alpha
v2.*
v2.0.0
v2.1.0
v2.1.1
v2.2.0
v2.3.0
v2.4.0
v3.*
v3.0.0
v3.1.0
v3.2.0
v3.2.1
v4.*
v4.0.0
v4.1.0
v4.2.0
v4.2.1
v4.2.2
v4.3.0
v5.*
v5.0.0
v5.0.1
v5.1.0
v5.1.1
v5.1.2
v5.1.3
v5.2.0
v5.2.1
v5.3.0
v5.3.1