nvd-json-data-feeds/CVE-2021/CVE-2021-421xx/CVE-2021-42142.json

{
  "id": "CVE-2021-42142",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2024-01-23T22:15:16.270",
  "lastModified": "2024-01-31T14:51:46.890",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Contiki-NG tinyDTLS a trav\u00e9s de la rama maestra 53a0d97. Los servidores DTLS manejan mal el uso inicial de un n\u00famero de \u00e9poca grande. Esta vulnerabilidad permite a atacantes remotos provocar una denegaci\u00f3n de servicio y ca\u00eddas de paquetes falsos positivos."
    }
  ],
  "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
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "2018-08-30",
              "matchCriteriaId": "E938DF84-2663-4516-87E3-B7E46789F6A1"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/contiki-ng/tinydtls/issues/24",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://seclists.org/fulldisclosure/2024/Jan/15",
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    }
  ]
}