注： 1. 本公告所涉及的漏洞修復信息知識產權全部歸麒麟軟件有限公司所有，此安全漏洞補丁公告僅適用于麒麟軟件操作系統通用主線產品，定制、OEM等版本可根據需要聯系售后獲取支持。任何媒體、網站或個人轉載使用時不得進行商業性的原版原式的轉載，也不得歪曲和篡改所發布的內容。此聲明以及其修改權、更新權及最終解釋權均歸本網所有。 2. 此安全漏洞補丁公告僅適用于銀河麒麟桌面操作系統V10 SP1 2303版本，系統版本查詢工具下載鏈接： https://security-oss.kylinos.cn/Desktop/libkysdk-sysinfo.zip 1. 漏洞概述 CVE-2022-42898 MIT Kerberos是一個用于在網絡集群中進行身份驗證的軟件。Kerberos 同時作為一種網絡認證協議，其設計目標是通過密鑰系統為客戶機 / 服務器應用程序提供強大的認證服務。 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解析存在整數溢出，這可能導致32位平臺上的遠程代碼執行，并導致其他平臺上的拒絕服務。 CVE-2018-20217 MIT krb5（又名MIT Kerberos 5）是一套網絡認證協議，它采用客戶端/服務器結構，并且客戶端和服務器端均可對對方進行身份認證（即雙重驗證），可防止竊聽、防止replay攻擊等。 MIT Kerberos 5 1.17之前版本中的KDC存在輸入驗證錯誤漏洞。攻擊者可通過發送S4U2Self請求利用該漏洞造成KDC崩潰。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V10 SP1 2303 x86_64 架構： 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 架構： 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 架構： 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 架構： 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. 軟件包修復版本 ·銀河麒麟桌面操作系統V10 SP1 2303 1.17-6kylin5.2k0.1 4. 修復方法 方法一：升級安裝 執行更新命令進行升級 $sudo apt update $sudo apt install libkdb5-9 $sudo apt install krb5-user $sudo apt install 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