[CVE-2026-57589] sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation …

Descripción técnica

sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root. This is a context switch use-after-free after tsleep in sys_semget().

Puntuación CVSS

Score: 7.4/10 — Severidad: HIGH — Estado NIST: Analyzed

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Productos afectados

Openbsd — Openbsd

Debilidades (CWE)

CWE-416

Fuente oficial

Publicado en NIST NVD.