Vulnerability Details : CVE-2022-40188
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.
Vulnerability category: Denial of service
Products affected by CVE-2022-40188
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-40188
0.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-40188
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2022-40188
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-40188
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/
[SECURITY] Fedora 35 Update: knot-resolver-5.5.3-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558
release 5.5.3 (!1343) · Merge requests · Knot projects / Knot Resolver · GitLabRelease Notes;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/
[SECURITY] Fedora 36 Update: knot-resolver-5.5.3-1.fc36 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/10/msg00008.html
[SECURITY] [DLA 3139-1] knot-resolver security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/
[SECURITY] Fedora 37 Update: knot-resolver-5.5.3-1.fc37 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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