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CVE-2018-16884

Estado: ModificadaAlta (8)—

A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

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)

Canonical — Ubuntu LinuxDebian — Debian LinuxLinux — Linux KernelRedhat — Enterprise LinuxRedhat — Enterprise MRG

CWE

Referencias

JSON original (NVD)

Mostrar
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      "lang": "es",
      "value": "Se ha encontrado un error en el subsistema de archivos NFS41+ del kernel de Linux. Las comparticiones de NFS41+ montadas en diferentes espacios de nombre al mismo tiempo pueden hacer que bc_svc_process() emplee el ID de canal trasero erróneo y provoque una vulnerabilidad de uso de memoria previamente liberada. Así, un usuario contenedor malicioso puede provocar la corrupción de la memoria host del kernel y un pánico del sistema. Debido a la naturaleza del error, no se puede descartar totalmente un escalado de privilegios."
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  "lastModified": "2026-06-17T01:44:59.483",
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