CVE-2025-38386
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Refuse to evaluate a method if arguments are missing
As reported in [1], a platform firmware update that increased the number of method parameters and forgot to update a least one of its callers, caused ACPICA to crash due to use-after-free.
Since this a result of a clear AML issue that arguably cannot be fixed up by the interpreter (it cannot produce missing data out of thin air), address it by making ACPICA refuse to evaluate a method if the caller attempts to pass fewer arguments than expected to it.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.19%
- Percentil entre todas las CVEs puntuadas: 7
- Fecha de la puntuación: 5/10/2026
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 (2)
CWE
- CWE-416
Referencias
- https://git.kernel.org/stable/c/18ff4ed6a33a7e3f2097710eacc96bea7696e803
- https://git.kernel.org/stable/c/2219e49857ffd6aea1b1ca5214d3270f84623a16
- https://git.kernel.org/stable/c/4305d936abde795c2ef6ba916de8f00a50f64d2d
- https://git.kernel.org/stable/c/6fcab2791543924d438e7fa49276d0998b0a069f
- https://git.kernel.org/stable/c/ab1e8491c19eb2ea0fda81ef28e841c7cb6399f5
- https://git.kernel.org/stable/c/b49d224d1830c46e20adce2a239c454cdab426f1
- https://git.kernel.org/stable/c/c9e4da550ae196132b990bd77ed3d8f2d9747f87
- https://git.kernel.org/stable/c/d547779e72cea9865b732cd45393c4cd02b3598e
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Refuse to evaluate a method if arguments are missing\n\nAs reported in [1], a platform firmware update that increased the number\nof method parameters and forgot to update a least one of its callers,\ncaused ACPICA to crash due to use-after-free.\n\nSince this a result of a clear AML issue that arguably cannot be fixed\nup by the interpreter (it cannot produce missing data out of thin air),\naddress it by making ACPICA refuse to evaluate a method if the caller\nattempts to pass fewer arguments than expected to it."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ACPICA: Negativa a evaluar un método si faltan argumentos. Como se informó en [1], una actualización de firmware de la plataforma que aumentó el número de parámetros del método y olvidó actualizar al menos uno de sus llamadores provocó el bloqueo de ACPICA debido al use-after-free. Dado que esto se debe a un claro problema de AML que posiblemente no pueda ser solucionado por el intérprete (no puede generar datos faltantes de la nada), se debe solucionar haciendo que ACPICA se niegue a evaluar un método si el llamante intenta pasarle menos argumentos de los esperados."
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