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CVE-2024-54456

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()

name is char[64] where the size of clnt->cl_program->name remains unknown. Invoking strcat() directly will also lead to potential buffer overflow. Change them to strscpy() and strncat() to fix potential 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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso local (AV:L) sin interacción del usuario (UI:N) permite escalada de privilegios mediante buffer overflow (CWE-787) en kernel NFS, con impacto en ejecución de código arbitrario.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "published": "2025-02-27T03:15:10.667",
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          "value": "CWE-787"
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()\n\nname is char[64] where the size of clnt->cl_program->name remains\nunknown. Invoking strcat() directly will also lead to potential buffer\noverflow. Change them to strscpy() and strncat() to fix potential\nissues."
    },
    {
      "lang": "es",
      "value": "En el núcleo de Linux, se ha resuelto la siguiente vulnerabilidad: NFS: Se solucionó un posible desbordamiento de búfer en nfs_sysfs_link_rpc_client() cuyo nombre es char[64], donde el tamaño de clnt->cl_program->name sigue siendo desconocido. Invocar strcat() directamente también provocará un posible desbordamiento de búfer. Cámbielos a strscpy() y strncat() para solucionar posibles problemas."
    }
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  "lastModified": "2026-08-04T11:22:08.187",
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