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CVE-2020-14967

Estado: ModificadaCrítica (9.8)—

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

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 (2)

Kjur — JsrsasignNetapp — MAX Data

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-14967",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "affected": [
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  "published": "2020-06-22T12:15:10.150",
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      "description": [
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          "lang": "en",
          "value": "CWE-119"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en el paquete jsrsasign versiones anteriores a 8.0.18 para Node.js. La implementación de descifrado RSA PKCS1 versión v1.5 no detecta la modificación del texto cifrado anteponiendo bytes \"\\0\" a textos cifrados (descifra los textos cifrados modificados sin error). Un atacante podría anteponer estos bytes con el objetivo de desencadenar problemas de corrupción de la memoria"
    }
  ],
  "lastModified": "2026-06-22T03:18:31.867",
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