{
  "id": "CVE-2021-34430",
  "sourceIdentifier": "emo@eclipse.org",
  "published": "2021-07-08T03:15:07.643",
  "lastModified": "2021-07-12T15:50:33.367",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Eclipse TinyDTLS through 0.9-rc1 relies on the rand function in the C library, which makes it easier for remote attackers to compute the master key and then decrypt DTLS traffic."
    },
    {
      "lang": "es",
      "value": "Eclipse TinyDTLS versiones hasta 0.9-rc1 se basa en la funci\u00f3n rand de la biblioteca C, lo que facilita a atacantes remotos el c\u00e1lculo de la clave maestra y luego el descifrado del tr\u00e1fico DTLS"
    }
  ],
  "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:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "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:P/I:N/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "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": "CWE-326"
        }
      ]
    },
    {
      "source": "emo@eclipse.org",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-338"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:eclipse:tinydtls:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "0.8.2",
              "matchCriteriaId": "707B94F7-0133-4C8C-B06F-C75AE4AFDF30"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:eclipse:tinydtls:0.9:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E6F6D602-748C-4FE8-A5DC-69581B5FF326"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568803",
      "source": "emo@eclipse.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ]
    }
  ]
}