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CVE-2021-22918

Estado: ModificadaMedia (5.3)—

Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().

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)

Nodejs — Node.jsSiemens — Sinec Infrastructure Network Services

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-22918",
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          "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"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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      "value": "Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo()."
    },
    {
      "lang": "es",
      "value": "Node.js versiones anteriores a 16.4.1, 14.17.2, 12.22.2, es vulnerable a una lectura fuera de límites cuando la función  uv__idna_toascii() es usada para convertir cadenas a ASCII. El puntero p es leído e incrementado sin comprobar si está más allá de pe, siendo este último un puntero al final del buffer. Esto puede conllevar a una revelación de información o el bloqueo de la misma. Esta función puede ser desencadenada por medio de la función uv_getaddrinfo()"
    }
  ],
  "lastModified": "2026-06-17T03:38:01.333",
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