1.修复的CVE ·CVE-2022-40674 描述：libexpat是一款使用C语言编写的流式XML解析器。libexpat 2.4.9之前的版本存在安全漏洞，该漏洞源于其xmlparse.c组件中的doContent函数存在释放后重用。 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: expat、expat-devel、expat-static ·x86_64架构: expat、expat-devel、expat-static ·银河麒麟高级服务器操作系统 V10 ·aarch64架构: expat、expat-devel、expat-static ·x86_64架构: expat、expat-devel、expat-static 3.软件包修复版本 ·中标麒麟高级服务器操作系统 V7 (aarch64、x86_64) expat-2.1.0-15.el7_9或以上版本 expat-devel-2.1.0-15.el7_9或以上版本 expat-static-2.1.0-15.el7_9或以上版本 ·银河麒麟高级服务器操作系统 V10 (aarch64、x86_64) expat-2.1.0-15.el7_9或以上版本 expat-devel-2.1.0-15.el7_9或以上版本 expat-static-2.1.0-15.el7_9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:https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/ 银河麒麟高级服务器操作系统 V10 aarch64:https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/V10-ZJ/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-2022-40674: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 ·中标麒麟高级服务器操作系统 V7 expat(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/expat-2.1.0-15.el7_9.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/expat-devel-2.1.0-15.el7_9.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/expat-static-2.1.0-15.el7_9.aarch64.rpm expat(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/expat-2.1.0-15.el7_9.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/expat-2.1.0-15.el7_9.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/expat-devel-2.1.0-15.el7_9.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/expat-devel-2.1.0-15.el7_9.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/expat-static-2.1.0-15.el7_9.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/expat-static-2.1.0-15.el7_9.x86_64.rpm ·银河麒麟高级服务器操作系统 V10 expat(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/expat-2.1.0-15.el7_9.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/expat-devel-2.1.0-15.el7_9.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/expat-static-2.1.0-15.el7_9.aarch64.rpm expat(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/expat-2.1.0-15.el7_9.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/expat-2.1.0-15.el7_9.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/expat-devel-2.1.0-15.el7_9.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/expat-devel-2.1.0-15.el7_9.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/expat-static-2.1.0-15.el7_9.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/expat-static-2.1.0-15.el7_9.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