1.修复的CVE ·CVE-2023-50868 描述：DNS协议中的Closest Encloser Proof方面（在跳过RFC 9276指导时的RFC 5155中）允许远程攻击者通过DNSSEC响应在随机子域攻击中导致拒绝服务（CPU消耗用于SHA-1计算），也被称为NSEC3问题。RFC 5155规范意味着在某些情况下，算法必须执行数千次哈希函数迭代 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: bind-pkcs11-libs、bind-libs-lite、bind-license、bind-libs、bind-export-libs、bind-export-devel、bind-utils、bind-chroot、bind-lite-devel、bind-sdb、bind-pkcs11-utils、bind-pkcs11-devel、bind-pkcs11、bind-devel、bind-sdb-chroot、bind ·x86_64架构: bind-pkcs11-libs、bind-libs-lite、bind-utils、bind-libs、bind-license、bind-export-devel、bind-export-libs、bind-chroot、bind-lite-devel、bind、bind-pkcs11-utils、bind-pkcs11-devel、bind-pkcs11、bind-devel、bind-sdb-chroot、bind-sdb ·银河麒麟高级服务器操作系统 V10 ·aarch64架构: bind-pkcs11-libs、bind-libs-lite、bind-license、bind-libs、bind-export-devel、bind-export-libs、bind-utils、bind-chroot、bind-lite-devel、bind、bind-pkcs11-utils、bind-pkcs11-devel、bind-pkcs11、bind-devel、bind-sdb-chroot、bind-sdb ·x86_64架构: bind-pkcs11-libs、bind-utils、bind-libs-lite、bind-libs、bind-export-libs、bind-export-devel、bind-sdb、bind-chroot、bind-lite-devel、bind-license、bind-pkcs11-utils、bind-pkcs11-devel、bind-pkcs11、bind-devel、bind-sdb-chroot、bind 3.软件包修复版本 ·中标麒麟高级服务器操作系统 V7 (aarch64) bind-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-license-9.11.4-26.P2.el7_9.16或以上版本 bind-lite-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-9.11.4-26.P2.el7_9.16或以上版本 bind-export-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-lite-9.11.4-26.P2.el7_9.16或以上版本 bind-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-utils-9.11.4-26.P2.el7_9.16或以上版本 bind-export-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-utils-9.11.4-26.P2.el7_9.16或以上版本 ·中标麒麟高级服务器操作系统 V7 (x86_64) bind-pkcs11-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-license-9.11.4-26.P2.el7_9.16或以上版本 bind-lite-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-9.11.4-26.P2.el7_9.16或以上版本 bind-export-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-lite-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-utils-9.11.4-26.P2.el7_9.16或以上版本 bind-export-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-utils-9.11.4-26.P2.el7_9.16或以上版本 ·银河麒麟高级服务器操作系统 V10 (aarch64) bind-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-license-9.11.4-26.P2.el7_9.16或以上版本 bind-lite-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-export-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-utils-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-lite-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-utils-9.11.4-26.P2.el7_9.16或以上版本 bind-export-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-9.11.4-26.P2.el7_9.16或以上版本 ·银河麒麟高级服务器操作系统 V10 (x86_64) bind-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-license-9.11.4-26.P2.el7_9.16或以上版本 bind-lite-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-9.11.4-26.P2.el7_9.16或以上版本 bind-export-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-sdb-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-9.11.4-26.P2.el7_9.16或以上版本 bind-chroot-9.11.4-26.P2.el7_9.16或以上版本 bind-libs-lite-9.11.4-26.P2.el7_9.16或以上版本 bind-pkcs11-utils-9.11.4-26.P2.el7_9.16或以上版本 bind-export-devel-9.11.4-26.P2.el7_9.16或以上版本 bind-utils-9.11.4-26.P2.el7_9.16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:http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/ x86_64:http://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:http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/ x86_64:http://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-2023-50868:需要重启 bind 以使漏洞修复生效。 5.软件包下载地址 ·中标麒麟高级服务器操作系统 V7 bind(aarch64)软件包下载地址: http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-license-9.11.4-26.P2.el7_9.16.noarch.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-lite-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-libs-lite-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-chroot-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-libs-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-export-libs-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-export-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-libs-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-utils-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-sdb-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-sdb-chroot-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-utils-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm bind(x86_64)软件包下载地址: http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-sdb-chroot-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-utils-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-utils-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-sdb-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-libs-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-libs-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-license-9.11.4-26.P2.el7_9.16.noarch.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-lite-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-lite-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-chroot-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm ·银河麒麟高级服务器操作系统 V10 bind(aarch64)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-sdb-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-utils-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-export-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-libs-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-libs-lite-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-export-libs-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-libs-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-license-9.11.4-26.P2.el7_9.16.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-lite-devel-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-chroot-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-sdb-chroot-9.11.4-26.P2.el7_9.16.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/bind-utils-9.11.4-26.P2.el7_9.16.aarch64.rpm bind(x86_64)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-chroot-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-utils-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-sdb-chroot-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-sdb-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-utils-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-libs-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-libs-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-lite-devel-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-lite-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-license-9.11.4-26.P2.el7_9.16.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.4-26.P2.el7_9.16.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.4-26.P2.el7_9.16.i686.rpm http://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.4-26.P2.el7_9.16.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