FKIE_CVE-2022-40188

Vulnerability from fkie_nvd - Published: 2022-09-23 16:15 - Updated: 2025-05-27 15:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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
cve@mitre.orghttps://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558Release Notes, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/10/msg00008.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/
af854a3a-2127-422b-91ae-364da2661108https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/10/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/
Impacted products
Vendor Product Version
nic knot_resolver *
fedoraproject fedora 35
fedoraproject fedora 36
fedoraproject fedora 37
debian debian_linux 10.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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              "matchCriteriaId": "1A262135-58DE-4ED9-9B24-812AFC85A133",
              "versionEndExcluding": "5.5.3",
              "vulnerable": true
            }
          ],
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          "operator": "OR"
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    },
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Knot Resolver versiones anteriores a 5.5.3, permite a atacantes remotos causar una denegaci\u00f3n de servicio (consumo de CPU) debido a una complejidad del algoritmo. Durante un ataque, un servidor autoritativo debe devolver grandes conjuntos de NS o conjuntos de direcciones."
    }
  ],
  "id": "CVE-2022-40188",
  "lastModified": "2025-05-27T15:15:28.160",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          "availabilityImpact": "HIGH",
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          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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    },
    {
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    },
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    },
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    },
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    },
    {
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    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-407"
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      "type": "Primary"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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