CVE-2025-38715
Estado: ModificadaAlta (7.1)—
In the Linux kernel, the following vulnerability has been resolved:
hfs: fix slab-out-of-bounds in hfs_bnode_read()
This patch introduces is_bnode_offset_valid() method that checks the requested offset value. Also, it introduces check_and_correct_requested_length() method that checks and correct the requested length (if it is necessary). These methods are used in hfs_bnode_read(), hfs_bnode_write(), hfs_bnode_clear(), hfs_bnode_copy(), and hfs_bnode_move() with the goal to prevent the access out of allocated memory and triggering the crash.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.17%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 6/10/2026
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 Interpreterexecution65 % - Impacto secundario
T1499.004Application or System Exploitationimpact75 %
Acceso local (AV:L) con privilegios (PR:L) permite lectura fuera de límites en HFS. Buffer over-read en kernel puede ejecutar código o provocar DoS. Pista sugiere T1068 e impacto T1059.
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-125
Referencias
- https://git.kernel.org/stable/c/384a66b89f9540a9a8cb0f48807697dfabaece4c
- https://git.kernel.org/stable/c/67ecc81f6492275c9c54280532f558483c99c90e
- https://git.kernel.org/stable/c/a1a60e79502279f996e55052f50cc14919020475
- https://git.kernel.org/stable/c/a431930c9bac518bf99d6b1da526a7f37ddee8d8
- https://git.kernel.org/stable/c/e7d2dc2421e821e4045775e6dc226378328de6f6
- https://git.kernel.org/stable/c/eec522fd0d28106b14a59ab2d658605febe4a3bb
- https://git.kernel.org/stable/c/efc095b35b23297e419c2ab4fc1ed1a8f0781a29
- https://git.kernel.org/stable/c/fc7f732984ec91f30be3e574e0644066d07f2b78
- https://git.kernel.org/stable/c/fe2891a9c43ab87d1a210d61e6438ca6936e2f62
- 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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