1.修复的CVE ·CVE-2021-28041 描述：OpenSSH（OpenBSD Secure Shell）是Openbsd计划组的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。OpenSSH中的ssh代理具有双重释放内存损坏漏洞，更具体地说是在ssh-agent应用程序中。此漏洞使有权访问代理套接字的攻击者可以将代理转发到与恶意用户共享的帐户，也可以转发给具有根访问权限的攻击者的主机。此漏洞带来的最大威胁是机密性，完整性和系统可用性。 2.受影响的软件包 ·银河麒麟高级服务器操作系统 V10 SP1 ·aarch64架构: openssh、openssh-askpass、openssh-cavs、openssh-clients、openssh-help、openssh-keycat、openssh-ldap、openssh-server、pam_ssh_agent_auth ·mips64el架构: openssh、openssh-askpass、openssh-cavs、openssh-clients、openssh-help、openssh-keycat、openssh-ldap、openssh-server、pam_ssh_agent_auth ·x86_64架构: openssh、openssh-askpass、openssh-cavs、openssh-clients、openssh-help、openssh-keycat、openssh-ldap、openssh-server、pam_ssh_agent_auth ·银河麒麟高级服务器操作系统 V10 SP2 ·aarch64架构: openssh、openssh-askpass、openssh-cavs、openssh-clients、openssh-help、openssh-keycat、openssh-ldap、openssh-server、pam_ssh_agent_auth ·x86_64架构: openssh、openssh-askpass、openssh-cavs、openssh-clients、openssh-help、openssh-keycat、openssh-ldap、openssh-server、pam_ssh_agent_auth 3.软件包修复版本 ·银河麒麟高级服务器操作系统 V10 SP1 (aarch64、mips64el、x86_64) openssh-8.2p1-9.p09.ky10或以上版本 openssh-askpass-8.2p1-9.p09.ky10或以上版本 openssh-cavs-8.2p1-9.p09.ky10或以上版本 openssh-clients-8.2p1-9.p09.ky10或以上版本 openssh-help-8.2p1-9.p09.ky10或以上版本 openssh-keycat-8.2p1-9.p09.ky10或以上版本 openssh-ldap-8.2p1-9.p09.ky10或以上版本 openssh-server-8.2p1-9.p09.ky10或以上版本 pam_ssh_agent_auth-0.10.3-9.9.p09.ky10或以上版本 ·银河麒麟高级服务器操作系统 V10 SP2 (aarch64、x86_64) openssh-8.2p1-9.p09.ky10或以上版本 openssh-askpass-8.2p1-9.p09.ky10或以上版本 openssh-cavs-8.2p1-9.p09.ky10或以上版本 openssh-clients-8.2p1-9.p09.ky10或以上版本 openssh-help-8.2p1-9.p09.ky10或以上版本 openssh-keycat-8.2p1-9.p09.ky10或以上版本 openssh-ldap-8.2p1-9.p09.ky10或以上版本 openssh-server-8.2p1-9.p09.ky10或以上版本 pam_ssh_agent_auth-0.10.3-9.9.p09.ky10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 V10 SP1 aarch64:https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/ mips64el:https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/ x86_64:https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/ 银河麒麟高级服务器操作系统 V10 SP2 aarch64:https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/V10SP2/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-2021-28041:需要重启 openssh 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 V10 SP1 openssh(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-askpass-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-cavs-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-clients-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-help-8.2p1-9.p09.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-keycat-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-ldap-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/openssh-server-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/pam_ssh_agent_auth-0.10.3-9.9.p09.ky10.aarch64.rpm openssh(mips64el)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-askpass-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-cavs-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-clients-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-help-8.2p1-9.p09.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-keycat-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-ldap-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/openssh-server-8.2p1-9.p09.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/pam_ssh_agent_auth-0.10.3-9.9.p09.ky10.mips64el.rpm openssh(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-askpass-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-cavs-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-clients-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-help-8.2p1-9.p09.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-keycat-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-ldap-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/openssh-server-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/pam_ssh_agent_auth-0.10.3-9.9.p09.ky10.x86_64.rpm ·银河麒麟高级服务器操作系统 V10 SP2 openssh(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-askpass-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-cavs-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-clients-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-help-8.2p1-9.p09.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-keycat-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-ldap-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/openssh-server-8.2p1-9.p09.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/pam_ssh_agent_auth-0.10.3-9.9.p09.ky10.aarch64.rpm openssh(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-askpass-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-cavs-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-clients-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-help-8.2p1-9.p09.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-keycat-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-ldap-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/openssh-server-8.2p1-9.p09.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/pam_ssh_agent_auth-0.10.3-9.9.p09.ky10.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