漏洞信息
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Vulnerability Title
N/A
Vulnerability Description
If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.
CVSS Information
N/A
Vulnerability Type
权限预留不恰当
Vulnerability Title
grub2 安全漏洞
Vulnerability Description
grub2是GNU社区的一款Linux系统引导程序。 GRUB2 存在安全漏洞，如果将签署 grub 的证书安装到 db 中，则可以直接启动 grub。然后它可以在没有签名验证的情况下启动任何内核。
CVSS Information
N/A
Vulnerability Type
N/A