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CVE-2021-20231

Estado: ModificadaCrítica (9.8)—

A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.

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 (5)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-20231",
  "cveTags": [],
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          "authentication": "NONE",
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  "published": "2021-03-12T19:15:13.037",
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  "weaknesses": [
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      "source": "secalert@redhat.com",
      "description": [
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          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
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      "lang": "en",
      "value": "A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences."
    },
    {
      "lang": "es",
      "value": "Se encontró un defecto en gnutls. Un uso de la memoria previamente liberada en el cliente que envía la extensión key_share puede conllevar a una corrupción de la memoria y otras consecuencias"
    }
  ],
  "lastModified": "2026-06-17T03:33:30.757",
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