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CVE-2024-21909

Estado: ModificadaAlta (7.5)—

PeterO.Cbor versions 4.0.0 through 4.5.0 are vulnerable to a denial of service vulnerability. An attacker may trigger the denial of service condition by providing crafted data to the DecodeFromBytes or other decoding mechanisms in PeterO.Cbor. Depending on the usage of the library, an unauthenticated and remote attacker may be able to cause the denial of service condition.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-21909",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-21909",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-09T23:31:17.137288Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "versions": [
            {
              "status": "affected",
              "version": "4.0.0",
              "lessThan": "4.5.1",
              "versionType": "semver 2.0.0"
            }
          ],
          "packageURL": "pkg:nuget/PeterO.Cbor",
          "packageName": "PeterO.Cbor",
          "collectionURL": "https://nuget.org/packages",
          "defaultStatus": "unaffected"
        }
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    }
  ],
  "published": "2024-01-03T16:15:09.003",
  "references": [
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      "url": "https://github.com/advisories/GHSA-6r92-cgxc-r5fg",
      "tags": [
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      ],
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/peteroupc/CBOR/commit/b4117dbbb4cd5a4a963f9d0c9aa132f033e15b95",
      "tags": [
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      ],
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/peteroupc/CBOR/compare/v4.5...v4.5.1",
      "tags": [
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      ],
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    },
    {
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://vulncheck.com/advisories/vc-advisory-GHSA-6r92-cgxc-r5fg",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "disclosure@vulncheck.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "PeterO.Cbor versions 4.0.0 through 4.5.0 are vulnerable to a denial of \nservice vulnerability. An attacker may trigger the denial of service \ncondition by providing crafted data to the DecodeFromBytes or other \ndecoding mechanisms in PeterO.Cbor. Depending on the usage of the \nlibrary, an unauthenticated and remote attacker may be able to cause the\n denial of service condition."
    },
    {
      "lang": "es",
      "value": "Las versiones de PeterO.Cbor 4.0.0 a 4.5.0 son vulnerables a una vulnerabilidad de denegación de servicio. Un atacante puede desencadenar la condición de denegación de servicio proporcionando datos manipulados a DecodeFromBytes u otros mecanismos de decodificación en PeterO.Cbor. Dependiendo del uso de la biblioteca, un atacante remoto y no autenticado puede provocar la condición de denegación de servicio."
    }
  ],
  "lastModified": "2026-07-14T23:17:14.283",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "1ACE4764-C56D-427B-99DA-52922CA6C062",
              "versionEndExcluding": "4.5.1",
              "versionStartIncluding": "4.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com"
}