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        安全漏洞

        安全漏洞補丁公告

        當前位置  >  首頁  >  服務支持  >  安全漏洞  >  安全漏洞補丁公告

        公告ID(KYSA-202203-1043

        公告ID:KYSA-202203-1043 公告摘要:krb5安全漏洞 安全等級:Moderate 發布日期:2022年03月18日 影響CVE:CVE-2021-37750

        詳細介紹

        1. 修復的CVE

        ·CVE-2021-37750

        描述:在krb5中發現了一個缺陷。MIT Kerberos 5中的密鑰分發中心(KDC)通過一個缺少服務器字段的快速內部主體進行空指針解引用。經過身份驗證的攻擊者可利用此漏洞使Kerberos KDC服務器崩潰。此漏洞的最大威脅是系統可用性。

        2. 受影響的軟件包

        ·銀河麒麟高級服務器操作系統 V10

        aarch64架構:

        krb5-devel、krb5-libs、krb5-pkinit、krb5-server、krb5-server-ldap、krb5-workstation、libkadm5

        x86_64架構:

        krb5-devel、krb5-libs、krb5-pkinit、krb5-server、krb5-server-ldap、krb5-workstation、libkadm5

        ·中標麒麟高級服務器操作系統 V7

        aarch64架構:

        krb5-devel、krb5-libs、krb5-pkinit、krb5-server、krb5-server-ldap、krb5-workstation、libkadm5

        x86_64架構:

        krb5-devel、krb5-libs、krb5-pkinit、krb5-server、krb5-server-ldap、krb5-workstation、libkadm5

        3. 軟件包修復版本

        ·銀河麒麟高級服務器操作系統 V10

        krb5-devel-1.15.1-51.el7_9.ns7.01

        krb5-libs-1.15.1-51.el7_9.ns7.01

        krb5-pkinit-1.15.1-51.el7_9.ns7.01

        krb5-server-1.15.1-51.el7_9.ns7.01

        krb5-server-ldap-1.15.1-51.el7_9.ns7.01

        krb5-workstation-1.15.1-51.el7_9.ns7.01

        libkadm5-1.15.1-51.el7_9.ns7.01

        ·中標麒麟高級服務器操作系統 V7

        krb5-devel-1.15.1-51.el7_9.ns7.01

        krb5-libs-1.15.1-51.el7_9.ns7.01

        krb5-pkinit-1.15.1-51.el7_9.ns7.01

        krb5-server-1.15.1-51.el7_9.ns7.01

        krb5-server-ldap-1.15.1-51.el7_9.ns7.01

        krb5-workstation-1.15.1-51.el7_9.ns7.01

        libkadm5-1.15.1-51.el7_9.ns7.01

        4. 修復方法

        方法一:配置源進行升級安裝

        1. 打開軟件包源配置文件,根據倉庫地址進行修改。

        倉庫源地址:

        銀河麒麟高級服務器操作系統 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/

        中標麒麟高級服務器操作系統 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/

        2. 配置完成后執行更新命令進行升級,命令如下:

        yum update Packagename

        方法二:下載安裝包進行升級安裝

        通過軟件包地址下載軟件包,使用軟件包升級命令根據受影響的軟件包列表進行升級安裝,命令如下:

        yum install Packagename

        3. 升級完成后是否需要重啟服務或操作系統:

        ·CVE-2021-37750:需要重啟 %s 以使漏洞修復生效。

        5. 軟件包下載地址

        ·銀河麒麟高級服務器操作系統 V10

        krb5(aarch64)軟件包下載地址:

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/krb5-devel-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/krb5-libs-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/krb5-pkinit-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/krb5-server-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/krb5-server-ldap-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/krb5-workstation-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/libkadm5-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        krb5(x86_64)軟件包下載地址:

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-devel-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-devel-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-libs-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-libs-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-pkinit-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-server-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-server-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-server-ldap-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-server-ldap-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/krb5-workstation-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/libkadm5-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/libkadm5-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        ·中標麒麟高級服務器操作系統 V7

        krb5(aarch64)軟件包下載地址:

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/krb5-devel-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/krb5-libs-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/krb5-pkinit-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/krb5-server-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/krb5-server-ldap-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/krb5-workstation-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libkadm5-1.15.1-51.el7_9.ns7.01.aarch64.rpm

        krb5(x86_64)軟件包下載地址:

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-devel-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-devel-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-libs-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-libs-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-pkinit-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-server-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-server-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-server-ldap-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-server-ldap-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/krb5-workstation-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libkadm5-1.15.1-51.el7_9.ns7.01.i686.rpm

        https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libkadm5-1.15.1-51.el7_9.ns7.01.x86_64.rpm

        注:其他相關依賴包請到相同目錄下載

        6. 修復驗證

        使用軟件包查詢命令,查看相關軟件包版本是否與修復版本一致,如果版本一致,則說明修復成功。

        sudo rpm -qa | grep Packagename

        上一篇: KYSA-202203-1042 下一篇: KYSA-202203-1044

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