cnvd - cnvd-2022-88276

CNVD-2022-88276

Vulnerability from cnvd - Published: 2022-12-16

Title

NIC Knot Resolver拒绝服务漏洞

Description

Knot Resolver是一款缓存DNS解析器实现，它包括解析器库和守护程序。 NIC Knot Resolver 5.5.3之前版本存在拒绝服务漏洞。该漏洞源于未对输入的错误消息做正确的处理，远程攻击者可利用漏洞通过算法的复杂性造成拒绝服务。

Severity

高

Patch Name

NIC Knot Resolver拒绝服务漏洞的补丁

Patch Description

Knot Resolver是一款缓存DNS解析器实现，它包括解析器库和守护程序。 NIC Knot Resolver 5.5.3之前版本存在拒绝服务漏洞。该漏洞源于未对输入的错误消息做正确的处理，远程攻击者可利用漏洞通过算法的复杂性造成拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558

Reference

https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558

Impacted products

Name
nic Knot Resolver <5.5.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-40188",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-40188"
    }
  },
  "description": "Knot Resolver\u662f\u4e00\u6b3e\u7f13\u5b58DNS\u89e3\u6790\u5668\u5b9e\u73b0\uff0c\u5b83\u5305\u62ec\u89e3\u6790\u5668\u5e93\u548c\u5b88\u62a4\u7a0b\u5e8f\u3002\n\nNIC Knot Resolver 5.5.3\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u5bf9\u8f93\u5165\u7684\u9519\u8bef\u6d88\u606f\u505a\u6b63\u786e\u7684\u5904\u7406\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u7b97\u6cd5\u7684\u590d\u6742\u6027\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-88276",
  "openTime": "2022-12-16",
  "patchDescription": "Knot Resolver\u662f\u4e00\u6b3e\u7f13\u5b58DNS\u89e3\u6790\u5668\u5b9e\u73b0\uff0c\u5b83\u5305\u62ec\u89e3\u6790\u5668\u5e93\u548c\u5b88\u62a4\u7a0b\u5e8f\u3002\r\n\r\nNIC Knot Resolver 5.5.3\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u5bf9\u8f93\u5165\u7684\u9519\u8bef\u6d88\u606f\u505a\u6b63\u786e\u7684\u5904\u7406\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u7b97\u6cd5\u7684\u590d\u6742\u6027\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "NIC Knot Resolver\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "nic Knot Resolver \u003c5.5.3"
  },
  "referenceLink": "https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558",
  "serverity": "\u9ad8",
  "submitTime": "2022-09-28",
  "title": "NIC Knot Resolver\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2022-40188 (GCVE-0-2022-40188)

Vulnerability from cvelistv5 – Published: 2022-09-23 00:00 – Updated: 2025-05-27 14:55

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.

Severity ?

7.5 (High)


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

CWE

Assigner

mitre

References

URL

Tags

	https://gitlab.nic.cz/knot/knot-resolver/-/merge_…
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2022…	mailing-list

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:14:39.955Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558"
          },
          {
            "name": "FEDORA-2022-68ad89b21c",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/"
          },
          {
            "name": "FEDORA-2022-357cc1a81b",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/"
          },
          {
            "name": "FEDORA-2022-2a4ca7b18d",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/"
          },
          {
            "name": "[debian-lts-announce] 20221008 [SECURITY] [DLA 3139-1] knot-resolver security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-40188",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-27T14:55:00.408266Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-407",
                "description": "CWE-407 Inefficient Algorithmic Complexity",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-27T14:55:35.830Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-08T00:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/1343#note_262558"
        },
        {
          "name": "FEDORA-2022-68ad89b21c",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2VE5K3VDUHJOIA2IGT3G5R76IBADMNE/"
        },
        {
          "name": "FEDORA-2022-357cc1a81b",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIMDNIUI7GTUEKIBBYYW7OCTJQFPDNXL/"
        },
        {
          "name": "FEDORA-2022-2a4ca7b18d",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO6LIVQS62MI5GG4OVYB5RHVZMYNHAHG/"
        },
        {
          "name": "[debian-lts-announce] 20221008 [SECURITY] [DLA 3139-1] knot-resolver security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00008.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2022-40188",
    "datePublished": "2022-09-23T00:00:00.000Z",
    "dateReserved": "2022-09-08T00:00:00.000Z",
    "dateUpdated": "2025-05-27T14:55:35.830Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2022-88276

CVE-2022-40188 (GCVE-0-2022-40188)

Tags

Sightings

Nomenclature