CVE-2021-47378
Estado: AnalizadaCrítica (9.8)—
Gravedad9.8Crítica · CVSS 3.1
Probabilidad de explotación1.18 %mayor que el 67 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvme-rdma: destruye cm id antes de destruir qp para evitar su use after free. Siempre debemos destruir cm_id antes de destruir qp para evitar que se produzca un evento cma después de que se destruya qp, lo que puede llevar a use after free. En el flujo de error de establecimiento de conexión RDMA, no destruya qp en el controlador de eventos cm. Simplemente informe cm_error al nivel superior, qp se destruirá en nvme_rdma_alloc_queue() después de destruir cm id.
CVSS
- Puntuación base
- 9.8
- Versión
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 1.18 %
- Percentil entre todas las CVEs puntuadas
- 67
- Fecha de la puntuación
- 21/10/2026
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 (1)
CWE
- CWE-416
Referencias
Mostrar las 6 referencias
- https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744
- https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994
- https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f
- https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744
- https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994
- https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-rdma: destroy cm id before destroy qp to avoid use after free\n\nWe should always destroy cm_id before destroy qp to avoid to get cma\nevent after qp was destroyed, which may lead to use after free.\nIn RDMA connection establishment error flow, don't destroy qp in cm\nevent handler.Just report cm_error to upper level, qp will be destroy\nin nvme_rdma_alloc_queue() after destroy cm id."
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}
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