{
  "id": "CVE-2021-38443",
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "published": "2022-05-05T17:15:09.610",
  "lastModified": "2022-05-13T03:54:51.587",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Eclipse CycloneDDS versions prior to 0.8.0 improperly handle invalid structures, which may allow an attacker to write arbitrary values in the XML parser."
    },
    {
      "lang": "es",
      "value": "Eclipse CycloneDDS versiones anteriores a 0.8.0, manejan inapropiadamente las estructuras no v\u00e1lidas, lo que puede permitir a un atacante escribir valores arbitrarios en el analizador XML"
    }
  ],
  "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
      },
      {
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "HIGH",
          "baseScore": 6.6,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.7
      }
    ],
    "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": "ics-cert@hq.dhs.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-228"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:eclipse:cyclonedds:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "0.8.0",
              "matchCriteriaId": "CCB5CFFE-D864-4B96-A625-4FDA95D9D2A9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://projects.eclipse.org/projects/iot.cyclonedds",
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02",
      "source": "ics-cert@hq.dhs.gov",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ]
}