NovumOS has Privilege Escalation in the Syscall Interface

NovumOS is a custom 32-bit operating system written in Zig and x86 Assembly. In versions prior to 0.24, Syscall 12 (JumpToUser) accepts an arbitrary entry point address from user-space registers without validation, allowing any Ring 3 user-mode process to jump to kernel addresses and execute arbitrary code in Ring 0 context, resulting in local privilege escalation. This issue has been fixed in version 0.24. If developers are unable to immediately update, they should restrict syscall access by running the system in single-user mode without Ring 3, and disable user-mode processes by only running kernel shell with no user processes. This issue has been fixed in version 0.24.

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

特权管理不恰当

NovumOS 安全漏洞

NovumOS是MinecAnton209个人开发者的一个32位保护模式操作系统。 NovumOS 0.24之前版本存在安全漏洞，该漏洞源于Syscall 12未验证用户空间提供的入口地址，可能导致本地权限提升。

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