1.修复的CVE ·CVE-2020-25717 描述：此缺陷能够使samba的AD域用户在被查找失败的情况下被映射为本地的同名用户，此本地用户的权限可能比AD域用户高，由此导致AD域用户获得提权。此漏洞带来的最大威胁是对系统机密性和完整性的威胁。 2.受影响的软件包 ·中标麒麟高级服务器操作系统 V7 ·aarch64架构: samba-winbind、samba、samba-client、samba-client-libs、samba-libs、samba-winbind-clients、samba-common、samba-test、samba-common-tools、libwbclient、samba-test-libs、samba-python、libsmbclient-devel、libsmbclient、ctdb、samba-winbind-modules、ctdb-tests、samba-pidl、samba-python-test、samba-dc、samba-devel、samba-winbind-krb5-locator、samba-krb5-printing、samba-common-libs、samba-dc-libs、libwbclient-devel ·x86_64架构: samba-winbind、samba、samba-client、samba-client-libs、samba-libs、samba-winbind-clients、samba-common、samba-test、samba-common-tools、libwbclient、samba-test-libs、samba-python、libsmbclient-devel、libsmbclient、ctdb、samba-winbind-modules、ctdb-tests、samba-pidl、samba-vfs-glusterfs、samba-python-test、samba-dc、samba-devel、samba-winbind-krb5-locator、samba-krb5-printing、samba-common-libs、samba-dc-libs、libwbclient-devel 3.软件包修复版本 ·中标麒麟高级服务器操作系统 V7 (aarch64) samba-dc-libs-4.10.16-19.el7_9.ns7.01或以上版本 libwbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-dc-4.10.16-19.el7_9.ns7.01或以上版本 samba-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-4.10.16-19.el7_9.ns7.01或以上版本 samba-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-krb5-printing-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-libs-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-pidl-4.10.16-19.el7_9.ns7.01或以上版本 libwbclient-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-modules-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-tools-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-tests-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-clients-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-4.10.16-19.el7_9.ns7.01或以上版本 ·中标麒麟高级服务器操作系统 V7 (x86_64) libwbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-dc-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-dc-4.10.16-19.el7_9.ns7.01或以上版本 samba-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-4.10.16-19.el7_9.ns7.01或以上版本 samba-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-krb5-printing-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-libs-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-vfs-glusterfs-4.10.16-19.el7_9.ns7.01或以上版本 samba-pidl-4.10.16-19.el7_9.ns7.01或以上版本 libwbclient-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-modules-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-tools-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-tests-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-clients-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-4.10.16-19.el7_9.ns7.01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： 中标麒麟高级服务器操作系统 V7 aarch64:http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/ x86_64:http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/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-2020-25717:需要重启 samba 以使漏洞修复生效。 5.软件包下载地址 ·中标麒麟高级服务器操作系统 V7 samba(aarch64)软件包下载地址: http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-python-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-modules-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-clients-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-python-test-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-test-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-test-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-common-4.10.16-19.el7_9.ns7.01.noarch.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-krb5-printing-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-common-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-client-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libsmbclient-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libsmbclient-devel-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/ctdb-tests-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/ctdb-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-devel-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-dc-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-pidl-4.10.16-19.el7_9.ns7.01.noarch.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-dc-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-client-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libwbclient-devel-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libwbclient-4.10.16-19.el7_9.ns7.01.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-common-tools-4.10.16-19.el7_9.ns7.01.aarch64.rpm samba(x86_64)软件包下载地址: http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-test-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-common-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libwbclient-devel-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-python-test-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-dc-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-modules-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-clients-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-common-tools-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-krb5-printing-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-client-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-devel-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libwbclient-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/ctdb-tests-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/ctdb-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-vfs-glusterfs-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-devel-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libwbclient-devel-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-dc-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-python-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-python-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-common-4.10.16-19.el7_9.ns7.01.noarch.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-libs-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-pidl-4.10.16-19.el7_9.ns7.01.noarch.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-modules-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-test-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-client-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-client-libs-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-devel-4.10.16-19.el7_9.ns7.01.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-devel-4.10.16-19.el7_9.ns7.01.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-libs-4.10.16-19.el7_9.ns7.01.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