1. 漏洞描述

Initial UEFI bootloader that handles chaining to a trusted full \ bootloader under secure boot environments.

Security Fix(es):

A vulnerability classified as critical has been found in rhboot shim up to 15.7 on ARM. This affects the function mirror_one_esl of the file mok.c of the component mok. Applying the patch 66e6579dbf921152f647a0c16da1d3b2f40861ca is able to eliminate this problem. The bugfix is ready for download at github.com.(CVE-2023-40546)

2. 影响范围

3. 影响组件

4. 修复版本

5. 修复方法

方法一：下载安装包进行升级安装
1、通过下载链接下载需要升级的升级包保存，如 xxx.rpm
2、通过rpm命令升级，如 rpm -Uvh xxx.rpm

方法二：通过软件源进行升级安装
1、保持能够连接上互联网
2、通过yum命令升级指定的包，如 yum install 包名

6. 下载链接

KY3.5.1:

x86_64:

     shim   

aarch64:

     shim