1.修復的CVE ·CVE-2022-3787 描述：設備映射多路徑存在漏洞。設備映射器多路徑允許本地用戶獲得根訪問權限，可以單獨使用，也可以與CVE-2022-41973結合使用。能夠寫入UNIX域套接字的本地用戶可以繞過訪問控制并操作多路徑設置。出現此問題是因為攻擊者可以重復關鍵字，當使用算術ADD而不是按位OR時，該關鍵字會被錯誤處理。這可能導致本地權限升級到根權限。 ·CVE-2022-41974 描述：設備映射多路徑存在漏洞。設備映射器多路徑允許本地用戶獲得根訪問權限，可以單獨使用，也可以與CVE-2022-41973結合使用。能夠寫入UNIX域套接字的本地用戶可以繞過訪問控制并操作多路徑設置。出現此問題是因為攻擊者可以重復關鍵字，當使用算術ADD而不是按位OR時，該關鍵字會被錯誤處理。這可能導致本地權限升級到根權限。 2.受影響的軟件包 ·銀河麒麟高級服務器操作系統（兼容版） V10 ·aarch64架構: device-mapper-multipath、device-mapper-multipath-devel、device-mapper-multipath-libs、kpartx、libdmmp、libdmmp-devel ·x86_64架構: device-mapper-multipath、device-mapper-multipath-devel、device-mapper-multipath-libs、kpartx、libdmmp、libdmmp-devel 3.軟件包修復版本 ·銀河麒麟高級服務器操作系統（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.修復方法 方法一：配置源進行升級安裝 1.打開軟件包源配置文件，根據倉庫地址進行修改。 倉庫源地址： 銀河麒麟高級服務器操作系統（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.配置完成后執行更新命令進行升級，命令如下： yum update Packagename 方法二：下載安裝包進行升級安裝 通過軟件包地址下載軟件包，使用軟件包升級命令根據受影響的軟件包 列表進行升級安裝, 命令如下： yum install Packagename 3.升級完成后是否需要重啟服務或操作系統： CVE-2022-3787:無需重啟操作系統與服務即可使漏洞修復生效。 CVE-2022-41974:無需重啟操作系統與服務即可使漏洞修復生效。 5.軟件包下載地址 ·銀河麒麟高級服務器操作系統（兼容版） V10 device-mapper-multipath(aarch64)軟件包下載地址: 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)軟件包下載地址: 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：其他相關依賴包請到相同目錄下載 6.修復驗證 使用軟件包查詢命令，查看相關軟件包版本是否與修復版本一致，如果版本一致，則說明修復成功。 sudo rpm -qa | grep Packagename