GSD-2021-42147

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.
Aliases
Aliases
CVE-2021-42147
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-42147",
    "id": "GSD-2021-42147"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-42147"
      ],
      "details": "Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.",
      "id": "GSD-2021-42147",
      "modified": "2023-12-13T01:23:06.486067Z",
      "schema_version": "1.4.0"
    }
  },
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        "STATE": "PUBLIC"
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            "name": "https://seclists.org/fulldisclosure/2024/Jan/20",
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            "url": "https://seclists.org/fulldisclosure/2024/Jan/20"
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                    "criteria": "cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*",
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            "value": "Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet."
          },
          {
            "lang": "es",
            "value": "Vulnerabilidad de lectura excesiva del b\u00fafer en la funci\u00f3n dtls_sha256_update en Contiki-NG tinyDTLS a trav\u00e9s de la rama maestra 53a0d97 permite a atacantes remotos provocar una denegaci\u00f3n de servicio a trav\u00e9s de un paquete de datos manipulado."
          }
        ],
        "id": "CVE-2021-42147",
        "lastModified": "2024-02-01T17:43:47.787",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.1,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
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        "published": "2024-01-24T19:15:08.530",
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        "vulnStatus": "Analyzed",
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

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  • 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 confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

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