CVE-2025-38699
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
scsi: bfa: Double-free fix
When the bfad_im_probe() function fails during initialization, the memory pointed to by bfad->im is freed without setting bfad->im to NULL.
Subsequently, during driver uninstallation, when the state machine enters the bfad_sm_stopping state and calls the bfad_im_probe_undo() function, it attempts to free the memory pointed to by bfad->im again, thereby triggering a double-free vulnerability.
Set bfad->im to NULL if probing fails.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.18%
- 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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1059Command and Scripting Interpreterexecution75 %
Acceso local sin interacción (AV:L, PR:L, UI:N) en kernel Linux permite escalada. Double-free en bfa driver da ejecución de código.
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
Tecnologías afectadas (2)
CWE
- CWE-415
Referencias
- https://git.kernel.org/stable/c/13f613228cf3c96a038424cd97aa4d6aadc66294
- https://git.kernel.org/stable/c/39cfe2c83146aad956318f866d0ee471b7a61fa5
- https://git.kernel.org/stable/c/50d9bd48321038bd6e15af5a454bbcd180cf6f80
- https://git.kernel.org/stable/c/684c92bb08a25ed3c0356bc7eb532ed5b19588dd
- https://git.kernel.org/stable/c/8456f862cb95bcc3a831e1ba87c0c17068be0f3f
- https://git.kernel.org/stable/c/8e03dd9fadf76db5b9799583074a1a2a54f787f1
- https://git.kernel.org/stable/c/9337c2affbaebe00b75fdf84ea0e2fcf93c140af
- https://git.kernel.org/stable/c/add4c4850363d7c1b72e8fce9ccb21fdd2cf5dc9
- https://git.kernel.org/stable/c/ba024d92564580bb90ec367248ace8efe16ce815
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bfa: Double-free fix\n\nWhen the bfad_im_probe() function fails during initialization, the memory\npointed to by bfad->im is freed without setting bfad->im to NULL.\n\nSubsequently, during driver uninstallation, when the state machine enters\nthe bfad_sm_stopping state and calls the bfad_im_probe_undo() function,\nit attempts to free the memory pointed to by bfad->im again, thereby\ntriggering a double-free vulnerability.\n\nSet bfad->im to NULL if probing fails."
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