CVE-2022-40188

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    CVE-2022-40188

    Published: 23 Sept 2022Last Modified: 23 Sept 2026

    Summary:

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/40xxx/CVE-2022-40188.json, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/, https://nvd.nist.gov/vuln/detail/CVE-2022-40188, https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558, https://lists.debian.org/debian-lts-announce/2022/10/msg00008.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -519080319a2c32b9248435b8cf546affd6f64a5e

    Affected versions

    v5.3.1
    v5.3.2
    v5.3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-40188 | CVE-DB