FKIE_CVE-2021-23386

Vulnerability from fkie_nvd - Published: 2021-05-20 17:15 - Updated: 2024-11-21 05:51
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names.
References
report@snyk.iohttps://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56Patch, Third Party Advisory
report@snyk.iohttps://hackerone.com/bugs?subject=user&amp%3Breport_id=968858Permissions Required, Third Party Advisory
report@snyk.iohttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719Patch, Third Party Advisory
report@snyk.iohttps://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/bugs?subject=user&amp%3Breport_id=968858Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563Patch, Third Party Advisory
Impacted products
Vendor Product Version
dns-packet_project dns-packet *
dns-packet_project dns-packet *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dns-packet_project:dns-packet:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "762967F6-7E35-496E-B72E-4CDD935C42B8",
              "versionEndExcluding": "1.3.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:dns-packet_project:dns-packet:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "D5C4FFB0-2B90-4CDA-99CF-DE77EC8643CF",
              "versionEndExcluding": "5.2.2",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names."
    },
    {
      "lang": "es",
      "value": "Esto afecta al paquete dns-packet  versi\u00f3n anterior a 5.2.2.\u0026#xa0;Crea b\u00faferes con el par\u00e1metro allocUnsafe y no siempre los llena antes de formar paquetes de red.\u0026#xa0;Esto puede exponer la memoria interna de la aplicaci\u00f3n por medio de una red no cifrada cuando se consultan nombres de dominio no v\u00e1lidos dise\u00f1ados"
    }
  ],
  "id": "CVE-2021-23386",
  "lastModified": "2024-11-21T05:51:37.283",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.3,
        "source": "report@snyk.io",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-05-20T17:15:07.567",
  "references": [
    {
      "source": "report@snyk.io",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/bugs?subject=user\u0026amp%3Breport_id=968858"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/bugs?subject=user\u0026amp%3Breport_id=968858"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563"
    }
  ],
  "sourceIdentifier": "report@snyk.io",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-909"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.