{
  "id": "CVE-2021-34432",
  "sourceIdentifier": "emo@eclipse.org",
  "published": "2021-07-27T16:15:07.893",
  "lastModified": "2021-08-17T15:33:24.837",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0."
    },
    {
      "lang": "es",
      "value": "En Eclipse Mosquitto versiones 2.07 y anteriores, el servidor se bloquear\u00e1 si el cliente intenta enviar un paquete PUBLISH con longitud de tema = 0"
    }
  ],
  "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:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    },
    {
      "source": "emo@eclipse.org",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "2.0.7",
              "matchCriteriaId": "B0CADA4B-CF26-4628-A52B-BD97FC3987AF"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141",
      "source": "emo@eclipse.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}