CVE-2022-40188

Published on: Not Yet Published

Last Modified on: 09/27/2022 11:15:00 PM UTC

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

Certain versions of Knot Resolver from Nic contain the following vulnerability:

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.

  • CVE-2022-40188 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.

CVSS3 Score: 7.5 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVE References

Description Tags Link
release 5.5.3 (!1343) · Merge requests · Knot projects / Knot Resolver · GitLab gitlab.nic.cz
text/html
URL Logo CONFIRM gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558
503 Backend fetch failed lists.fedoraproject.org
text/html
Inactive LinkNot Archived
URL Logo FEDORA FEDORA-2022-68ad89b21c

Related QID Numbers

  • 502512 Alpine Linux Security Update for knot-resolver

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationNicKnot ResolverAllAllAllAll
  • cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @yo_suematsu Knot Resolver 5.5.3リリース Security Fixを含む。 - fix CPU-expensive DoS by malicious domains - CVE-2022-40188 twitter.com/knotdns/status… 2022-09-21 14:27:37
Twitter Icon @CVEreport CVE-2022-40188 : Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service CPU consumption… twitter.com/i/web/status/1… 2022-09-23 16:06:10
Reddit Logo Icon /r/netcve CVE-2022-40188 2022-09-23 17:38:49
© CVE.report 2022 Twitter Nitter Twitter Viewer |

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