1.修复的漏洞 ·CVE-2023-50387 描述：DNS协议的某些DNSSEC方面（在RFC 4033、4034、4035、6840和相关RFC中）允许远程攻击者通过一个或多个DNSSEC响应（也称为KeyTrap问题）造成拒绝服务（CPU消耗）。其中一个问题是，当存在具有许多DNSKEY和RRSIG记录的区域时，协议规范意味着算法必须评估DNSKEY和RSMIG记录的所有组合。 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: systemd-help、systemd-udev-compat、systemd-udev、systemd-journal-remote、systemd-devel、systemd-container、systemd、systemd-libs ·mips64el架构: systemd-help、systemd-udev-compat、systemd-udev、systemd-journal-remote、systemd-devel、systemd-container、systemd、systemd-libs ·x86_64架构: systemd-udev-compat、systemd-help、systemd-udev、systemd-journal-remote、systemd-devel、systemd-container、systemd、systemd-libs ·银河麒麟高级服务器操作系统 V10 SP2 ·aarch64架构: systemd-help、systemd-udev-compat、systemd-udev、systemd-journal-remote、systemd-devel、systemd-container、systemd、systemd-libs ·x86_64架构: systemd-help、systemd-udev-compat、systemd-udev、systemd-journal-remote、systemd-devel、systemd-container、systemd、systemd-libs 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) systemd-container-243-31.se.p20.ky10或以上版本 systemd-help-243-31.se.p20.ky10或以上版本 systemd-devel-243-31.se.p20.ky10或以上版本 systemd-libs-243-31.se.p20.ky10或以上版本 systemd-udev-243-31.se.p20.ky10或以上版本 systemd-udev-compat-243-31.se.p20.ky10或以上版本 systemd-journal-remote-243-31.se.p20.ky10或以上版本 systemd-243-31.se.p20.ky10或以上版本 ·银河麒麟高级服务器操作系统 V10 SP2 (aarch64、x86_64) systemd-container-243-31.se.p20.ky10或以上版本 systemd-help-243-31.se.p20.ky10或以上版本 systemd-devel-243-31.se.p20.ky10或以上版本 systemd-libs-243-31.se.p20.ky10或以上版本 systemd-udev-243-31.se.p20.ky10或以上版本 systemd-udev-compat-243-31.se.p20.ky10或以上版本 systemd-journal-remote-243-31.se.p20.ky10或以上版本 systemd-243-31.se.p20.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:http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/ mips64el:http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/ x86_64:http://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:http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/ x86_64:http://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-2023-50387:需要重启 systemd 以使漏洞修复生效。 5.软件包下载地址 ·银河麒麟高级服务器操作系统 V10 SP1 systemd(aarch64)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-libs-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-journal-remote-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-help-243-31.se.p20.ky10.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-devel-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-container-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-udev-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/systemd-udev-compat-243-31.se.p20.ky10.aarch64.rpm systemd(mips64el)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-help-243-31.se.p20.ky10.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-container-243-31.se.p20.ky10.mips64el.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-devel-243-31.se.p20.ky10.mips64el.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-243-31.se.p20.ky10.mips64el.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-libs-243-31.se.p20.ky10.mips64el.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-udev-compat-243-31.se.p20.ky10.mips64el.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-journal-remote-243-31.se.p20.ky10.mips64el.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/mips64el/Packages/systemd-udev-243-31.se.p20.ky10.mips64el.rpm systemd(x86_64)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-udev-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-libs-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-journal-remote-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-help-243-31.se.p20.ky10.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-udev-compat-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-devel-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/systemd-container-243-31.se.p20.ky10.x86_64.rpm ·银河麒麟高级服务器操作系统 V10 SP2 systemd(aarch64)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-libs-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-journal-remote-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-container-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-help-243-31.se.p20.ky10.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-devel-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-udev-compat-243-31.se.p20.ky10.aarch64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/aarch64/Packages/systemd-udev-243-31.se.p20.ky10.aarch64.rpm systemd(x86_64)软件包下载地址: http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-libs-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-journal-remote-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-help-243-31.se.p20.ky10.noarch.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-devel-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-container-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-udev-compat-243-31.se.p20.ky10.x86_64.rpm http://update.cs2c.com.cn/NS/V10/V10SP2/os/adv/lic/updates/x86_64/Packages/systemd-udev-243-31.se.p20.ky10.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