1.修复的CVE ·CVE-2021-4122 描述：Cryptsetup是是一个实用程序，用于基于DMCrypt内核模块方便地设置磁盘加密。cryptsetup 存在安全漏洞，该漏洞源于软件对于数据真实性缺乏有效的验证。一个特别制作的LUKS头可以欺骗cryptsetup在设备恢复期间禁用加密。物理访问介质(如闪存盘)的攻击者可以利用这个漏洞迫使用户永久禁用该介质的加密层。 2.受影响的软件包 ·银河麒麟高级服务器操作系统（兼容版） V10 ·aarch64架构: cryptsetup、cryptsetup-devel、cryptsetup-libs、cryptsetup-reencrypt、integritysetup、veritysetup ·x86_64架构: cryptsetup、cryptsetup-devel、cryptsetup-libs、cryptsetup-reencrypt、integritysetup、veritysetup 3.软件包修复版本 ·银河麒麟高级服务器操作系统（兼容版） V10 (aarch64、x86_64) cryptsetup-2.3.7-2.el8或以上版本 cryptsetup-devel-2.3.7-2.el8或以上版本 cryptsetup-libs-2.3.7-2.el8或以上版本 cryptsetup-reencrypt-2.3.7-2.el8或以上版本 integritysetup-2.3.7-2.el8或以上版本 veritysetup-2.3.7-2.el8或以上版本 4.修复方法 方法一：配置源进行升级安装 1.打开软件包源配置文件，根据仓库地址进行修改。 仓库源地址： 银河麒麟高级服务器操作系统（兼容版） V10 aarch64:https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/ 2.配置完成后执行更新命令进行升级，命令如下： yum update Packagename 方法二：下载安装包进行升级安装 通过软件包地址下载软件包，使用软件包升级命令根据受影响的软件包 列表进行升级安装, 命令如下： yum install Packagename 3.升级完成后是否需要重启服务或操作系统： CVE-2021-4122:需要重启 cryptsetup 以使漏洞修复生效。 5.软件包下载地址 ·银河麒麟高级服务器操作系统（兼容版） V10 cryptsetup(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/cryptsetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/cryptsetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/cryptsetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/cryptsetup-devel-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/cryptsetup-devel-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/cryptsetup-devel-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/cryptsetup-libs-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/cryptsetup-libs-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/cryptsetup-libs-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/cryptsetup-reencrypt-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/cryptsetup-reencrypt-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/cryptsetup-reencrypt-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/integritysetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/integritysetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/integritysetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/veritysetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/veritysetup-2.3.7-2.el8.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/veritysetup-2.3.7-2.el8.aarch64.rpm cryptsetup(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/cryptsetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/cryptsetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/cryptsetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/cryptsetup-devel-2.3.7-2.el8.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/cryptsetup-devel-2.3.7-2.el8.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/cryptsetup-devel-2.3.7-2.el8.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/cryptsetup-devel-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/cryptsetup-devel-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/cryptsetup-devel-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/cryptsetup-libs-2.3.7-2.el8.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/cryptsetup-libs-2.3.7-2.el8.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/cryptsetup-libs-2.3.7-2.el8.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/cryptsetup-libs-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/cryptsetup-libs-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/cryptsetup-libs-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/cryptsetup-reencrypt-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/cryptsetup-reencrypt-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/cryptsetup-reencrypt-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/integritysetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/integritysetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/integritysetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/veritysetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/veritysetup-2.3.7-2.el8.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/veritysetup-2.3.7-2.el8.x86_64.rpm 注：其他相关依赖包请到相同目录下载 6.修复验证 使用软件包查询命令，查看相关软件包版本是否与修复版本一致，如果版本一致，则说明修复成功。 sudo rpm -qa | grep Packagename