1.修复的CVE ·CVE-2022-3787 描述：设备映射多路径存在漏洞。设备映射器多路径允许本地用户获得根访问权限，可以单独使用，也可以与CVE-2022-41973结合使用。能够写入UNIX域套接字的本地用户可以绕过访问控制并操作多路径设置。出现此问题是因为攻击者可以重复关键字，当使用算术ADD而不是按位OR时，该关键字会被错误处理。这可能导致本地权限升级到根权限。 ·CVE-2022-41974 描述：设备映射多路径存在漏洞。设备映射器多路径允许本地用户获得根访问权限，可以单独使用，也可以与CVE-2022-41973结合使用。能够写入UNIX域套接字的本地用户可以绕过访问控制并操作多路径设置。出现此问题是因为攻击者可以重复关键字，当使用算术ADD而不是按位OR时，该关键字会被错误处理。这可能导致本地权限升级到根权限。 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: device-mapper-multipath、device-mapper-multipath-devel、device-mapper-multipath-libs、kpartx、libdmmp、libdmmp-devel ·x86_64架构: device-mapper-multipath、device-mapper-multipath-devel、device-mapper-multipath-libs、kpartx、libdmmp、libdmmp-devel 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) device-mapper-multipath-0.8.4-28.el8_7.1或以上版本 device-mapper-multipath-devel-0.8.4-28.el8_7.1或以上版本 device-mapper-multipath-libs-0.8.4-28.el8_7.1或以上版本 kpartx-0.8.4-28.el8_7.1或以上版本 libdmmp-0.8.4-28.el8_7.1或以上版本 libdmmp-devel-0.8.4-28.el8_7.1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-2022-3787:无需重启操作系统与服务即可使漏洞修复生效。 CVE-2022-41974:无需重启操作系统与服务即可使漏洞修复生效。 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 device-mapper-multipath(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/device-mapper-multipath-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/device-mapper-multipath-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/device-mapper-multipath-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/kpartx-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kpartx-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/kpartx-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/libdmmp-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/libdmmp-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/libdmmp-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/aarch64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/aarch64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.aarch64.rpm device-mapper-multipath(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/device-mapper-multipath-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/device-mapper-multipath-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/device-mapper-multipath-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/device-mapper-multipath-devel-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/device-mapper-multipath-libs-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/kpartx-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kpartx-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/kpartx-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/libdmmp-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/libdmmp-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/libdmmp-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/libdmmp-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/libdmmp-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/libdmmp-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.i686.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/AppStream-updates/x86_64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/PowerTools-updates/x86_64/Packages/libdmmp-devel-0.8.4-28.el8_7.1.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