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CVE-2021-27365

Estado: AnalizadaAlta (7.8)—💥 PoC

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (5)

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-27365",
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    },
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      "lang": "es",
      "value": "Se detectó un problema en el kernel de Linux versiones  hasta 5.11.3. Determinadas estructuras de datos iSCSI no tienen restricciones de longitud o comprobaciones apropiadas y pueden exceder el valor PAGE_SIZE. Un usuario sin privilegios puede enviar un mensaje de Netlink que está asociado con iSCSI y tiene una longitud de hasta la longitud máxima de un mensaje de Netlink"
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