注： 1. 本公告所涉及的漏洞修复信息知识产权全部归麒麟软件有限公司所有，此安全漏洞补丁公告仅适用于麒麟软件操作系统通用主线产品，定制、OEM等版本可根据需要联系售后获取支持。任何媒体、网站或个人转载使用时不得进行商业性的原版原式的转载，也不得歪曲和篡改所发布的内容。此声明以及其修改权、更新权及最终解释权均归本网所有。 2. 此安全漏洞补丁公告仅适用于银河麒麟桌面操作系统V10 SP1 2303版本，系统版本查询工具下载链接： https://security-oss.kylinos.cn/Desktop/libkysdk-sysinfo.zip 1. 漏洞概述 CVE-2022-42898 MIT Kerberos是一个用于在网络集群中进行身份验证的软件。Kerberos 同时作为一种网络认证协议，其设计目标是通过密钥系统为客户机 / 服务器应用程序提供强大的认证服务。 1.19.4之前的MIT Kerberos 5（又名krb5）和1.20.1之前的1.20.x中的PAC解析存在整数溢出，这可能导致32位平台上的远程代码执行，并导致其他平台上的拒绝服务。 CVE-2018-20217 MIT krb5（又名MIT Kerberos 5）是一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。 MIT Kerberos 5 1.17之前版本中的KDC存在输入验证错误漏洞。攻击者可通过发送S4U2Self请求利用该漏洞造成KDC崩溃。 2. 受影响的操作系统及软件包 ·银河麒麟桌面操作系统V10 SP1 2303 x86_64 架构： krb5-admin-server、krb5-gss-samples、krb5-k5tls、krb5-kdc-ldap、krb5-kdc、krb5-kpropd、krb5-locales、krb5-multidev、krb5-otp、krb5-pkinit、krb5-user、libgssapi-krb5-2、libgssrpc4、libk5crypto3、libkadm5clnt-mit11、libkadm5srv-mit11、libkdb5-9、libkrad0、libkrb5-3、libkrb5support0 arm64 架构： krb5-admin-server、krb5-gss-samples、krb5-k5tls、krb5-kdc-ldap、krb5-kdc、krb5-kpropd、krb5-locales、krb5-multidev、krb5-otp、krb5-pkinit、krb5-user、libgssapi-krb5-2、libgssrpc4、libk5crypto3、libkadm5clnt-mit11、libkadm5srv-mit11、libkdb5-9、libkrad0、libkrb5-3、libkrb5support0 mips64el 架构： krb5-admin-server、krb5-gss-samples、krb5-k5tls、krb5-kdc-ldap、krb5-kdc、krb5-kpropd、krb5-locales、krb5-multidev、krb5-otp、krb5-pkinit、krb5-user、libgssapi-krb5-2、libgssrpc4、libk5crypto3、libkadm5clnt-mit11、libkadm5srv-mit11、libkdb5-9、libkrad0、libkrb5-3、libkrb5support0 loongarch64 架构： krb5-admin-server、krb5-gss-samples、krb5-k5tls、krb5-kdc-ldap、krb5-kdc、krb5-kpropd、krb5-locales、krb5-multidev、krb5-otp、krb5-pkinit、krb5-user、libgssapi-krb5-2、libgssrpc4、libk5crypto3、libkadm5clnt-mit11、libkadm5srv-mit11、libkdb5-9、libkrad0、libkrb5-3、libkrb5support0 3. 软件包修复版本 ·银河麒麟桌面操作系统V10 SP1 2303 1.17-6kylin5.2k0.1 4. 修复方法 方法一：升级安装 执行更新命令进行升级 $sudo apt update $sudo apt install libkdb5-9 $sudo apt install krb5-user $sudo apt install 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