OpenBSD Critical Flaw Allows Local Root Privilege Escalation via Use-After-Free

OpenBSD has a use-after-free allowing local privilege escalation to root

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OpenBSD Critical Flaw Allows Local Root Privilege Escalation via Use-After-Free

A severe use-after-free vulnerability in OpenBSD versions through 7.9 enables local attackers to escalate privileges to root. This flaw occurs in the sys_semget function during a context switch after tsleep. With a CVSS score of 7.4, this high-severity issue requires immediate attention from system administrators to patch their systems and prevent unauthorized access.

"sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root."