nvd-json-data-feeds/CVE-2021/CVE-2021-459xx/CVE-2021-45955.json

{
  "id": "CVE-2021-45955",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2022-01-01T00:15:08.677",
  "lastModified": "2022-03-18T13:33:15.280",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\" However, a contributor states that a security patch (mentioned in 016162.html) is needed."
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** Dnsmasq versi\u00f3n 2.86 presenta un desbordamiento de buffer en la regi\u00f3n heap de la memoria en la funci\u00f3n resize_packet (llamado desde FuzzResizePacket y fuzz_rfc1035.c). NOTA: la posici\u00f3n del proveedor es que CVE-2021-45951 a CVE-2021-45957 \"no representan vulnerabilidades reales, seg\u00fan nuestro conocimiento\". Sin embargo, un colaborador afirma que es necesario un parche de seguridad (mencionado en 016162.html)"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:thekelleys:dnsmasq:2.86:*:*:*:*:*:*:*",
              "matchCriteriaId": "8F823B95-CBE5-4597-9DEE-8E9B833940A7"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    }
  ]
}