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CVE-2020-24838

Estado: ModificadaAlta (7.5)—

Se ha detectado un desbordamiento de enteros en la última versión de Issuer. El total PublishedCount puede ser cero si el parámetro es demasiado grande. Un atacante puede obtener la clave privada del propietario emitida con una determinada "amount", y el issuedCount puede ser cero si se presenta un desbordamiento

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)

Issuer Project — Issuer

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-24838",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-10T16:15:13.693",
  "references": [
    {
      "url": "https://etherscan.io/address/0xecaad8df0dee0b9ed45ffd1191b024701f21506c#code",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://etherscan.io/address/0xecaad8df0dee0b9ed45ffd1191b024701f21506c#code",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An integer overflow has been found in the the latest version of Issuer. The total issuedCount can be zero if the parameter is overly large. An attacker can obtain the private key of the owner issued with a certain 'amount', and the issuedCount can be zero if there is an overflow."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un desbordamiento de enteros en la última versión de Issuer. El total PublishedCount puede ser cero si el parámetro es demasiado grande. Un atacante puede obtener la clave privada del propietario emitida con una determinada \"amount\", y el issuedCount puede ser cero si se presenta un desbordamiento"
    }
  ],
  "lastModified": "2026-06-17T03:06:05.727",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:issuer_project:issuer:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BD6C7894-D4F3-429C-861E-76C2ED7227F6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}