1.修复的CVE ·CVE-2021-25214 描述：ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。ISC BIND 存在安全漏洞，该漏洞导致接收已命名服务器无意中从区域数据库中删除有问题的区域的SOA记录。 ·CVE-2021-25215 描述：bind中发现了一个缺陷。DNAME记录的处理方式可能会触发将同一RRset添加到应答部分多次，从而导致断言检查失败。此漏洞的最大威胁是系统可用性。 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: bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind ·mips64el架构: bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind ·x86_64架构: bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind ·银河麒麟高级服务器操作系统 V10 SP2 ·aarch64架构: bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind ·x86_64架构: bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind 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) bind-9.11.21-6.ky10或以上版本 bind-chroot-9.11.21-6.ky10或以上版本 bind-devel-9.11.21-6.ky10或以上版本 bind-export-devel-9.11.21-6.ky10或以上版本 bind-export-libs-9.11.21-6.ky10或以上版本 bind-libs-9.11.21-6.ky10或以上版本 bind-libs-lite-9.11.21-6.ky10或以上版本 bind-pkcs11-9.11.21-6.ky10或以上版本 bind-pkcs11-devel-9.11.21-6.ky10或以上版本 bind-utils-9.11.21-6.ky10或以上版本 python3-bind-9.11.21-6.ky10或以上版本 ·银河麒麟高级服务器操作系统 V10 SP2 (aarch64、x86_64) bind-9.11.21-6.ky10或以上版本 bind-chroot-9.11.21-6.ky10或以上版本 bind-devel-9.11.21-6.ky10或以上版本 bind-export-devel-9.11.21-6.ky10或以上版本 bind-export-libs-9.11.21-6.ky10或以上版本 bind-libs-9.11.21-6.ky10或以上版本 bind-libs-lite-9.11.21-6.ky10或以上版本 bind-pkcs11-9.11.21-6.ky10或以上版本 bind-pkcs11-devel-9.11.21-6.ky10或以上版本 bind-utils-9.11.21-6.ky10或以上版本 python3-bind-9.11.21-6.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/base/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-2021-25214:无需重启操作系统与服务即可使漏洞修复生效。 CVE-2021-25215:无需重启操作系统与服务即可使漏洞修复生效。 5.软件包下载地址 ·银河麒麟高级服务器操作系统 V10 SP1 bind(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-chroot-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-export-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-export-libs-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-libs-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-libs-lite-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-utils-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/python3-bind-9.11.21-6.ky10.noarch.rpm bind(mips64el)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-chroot-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-devel-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-export-devel-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-export-libs-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-libs-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-libs-lite-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-pkcs11-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-pkcs11-devel-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/bind-utils-9.11.21-6.ky10.mips64el.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/base/mips64el/Packages/python3-bind-9.11.21-6.ky10.noarch.rpm bind(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/bind-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-chroot-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-utils-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/python3-bind-9.11.21-6.ky10.noarch.rpm ·银河麒麟高级服务器操作系统 V10 SP2 bind(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-chroot-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-chroot-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-export-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-export-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-export-libs-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-export-libs-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-libs-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-libs-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-libs-lite-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-libs-lite-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-pkcs11-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-pkcs11-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-devel-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/bind-utils-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/bind-utils-9.11.21-6.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/aarch64/Packages/python3-bind-9.11.21-6.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/python3-bind-9.11.21-6.ky10.noarch.rpm bind(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-chroot-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-chroot-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-export-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-export-libs-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-libs-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-libs-lite-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-pkcs11-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-pkcs11-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/bind-utils-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/bind-utils-9.11.21-6.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/base/x86_64/Packages/python3-bind-9.11.21-6.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/python3-bind-9.11.21-6.ky10.noarch.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