CVE-2021-4149
Estado: ModificadaMedia (5.5)—
Se encontró una vulnerabilidad en la función btrfs_alloc_tree_b en el archivo fs/btrfs/extent-tree.c en el kernel de Linux debido a una operación de bloqueo inapropiada en btrfs. En este fallo, un usuario con privilegio local puede causar una denegación de servicio (DOS) debido a un problema de bloqueo
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: 0.40%
- Percentil entre todas las CVEs puntuadas: 32
- Fecha de la puntuación: 11/10/2026
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-667
- CWE-667
Referencias
- https://bugzilla.redhat.com/show_bug.cgi?id=2026485
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://lkml.org/lkml/2021/10/18/885
- https://lkml.org/lkml/2021/9/13/2565
- https://bugzilla.redhat.com/show_bug.cgi?id=2026485
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://lkml.org/lkml/2021/10/18/885
- https://lkml.org/lkml/2021/9/13/2565
JSON original (NVD)
Mostrar
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