1.修复的CVE ·CVE-2021-20266 描述：在RPM库lib/header.c中的hdrblobInit()中发现了一个缺陷。这个漏洞允许可以修改rpmdb的攻击者进行越界读取。此漏洞的最大威胁是系统可用性。 ·CVE-2021-20271 描述：在读取包文件时，RPM的签名检查功能发现了一个缺陷。这个漏洞允许攻击者说服受害者安装一个看似可验证的包，该包的签名头被修改，从而导致RPM数据库损坏并执行代码。此漏洞的最大威胁是数据完整性、机密性和系统可用性。 ·CVE-2021-3421 描述：在 RPM 软件包的读取功能中发现了一个漏洞。攻击者若能说服受害者安装一个看似可验证的软件包或入侵 RPM 软件源，就能利用此漏洞导致 RPM 数据库损坏。该漏洞的最大威胁是数据完整性。此漏洞影响 4.17.0-alpha 之前的 RPM 版本。 2.受影响的软件包 ·银河麒麟高级服务器操作系统 V10 SP3 ·aarch64架构: python2-rpm、python3-rpm、rpm、rpm-build、rpm-devel、rpm-help、rpm-libs、rpm-plugin-systemd-inhibit ·x86_64架构: python2-rpm、python3-rpm、rpm、rpm-build、rpm-devel、rpm-help、rpm-libs、rpm-plugin-systemd-inhibit ·银河麒麟高级服务器操作系统（Host版）V10 ·aarch64架构: python2-rpm、python3-rpm、rpm、rpm-build、rpm-devel、rpm-help、rpm-libs、rpm-plugin-systemd-inhibit ·x86_64架构: python2-rpm、python3-rpm、rpm、rpm-build、rpm-devel、rpm-help、rpm-libs、rpm-plugin-systemd-inhibit 3.软件包修复版本 ·银河麒麟高级服务器操作系统 V10 SP3 (aarch64、x86_64) python2-rpm-4.15.1-36.p01.ky10或以上版本 python3-rpm-4.15.1-36.p01.ky10或以上版本 rpm-4.15.1-36.p01.ky10或以上版本 rpm-build-4.15.1-36.p01.ky10或以上版本 rpm-devel-4.15.1-36.p01.ky10或以上版本 rpm-help-4.15.1-36.p01.ky10或以上版本 rpm-libs-4.15.1-36.p01.ky10或以上版本 rpm-plugin-systemd-inhibit-4.15.1-36.p01.ky10或以上版本 ·银河麒麟高级服务器操作系统（Host版）V10 (aarch64、x86_64) python2-rpm-4.15.1-36.p01.ky10或以上版本 python3-rpm-4.15.1-36.p01.ky10或以上版本 rpm-4.15.1-36.p01.ky10或以上版本 rpm-build-4.15.1-36.p01.ky10或以上版本 rpm-devel-4.15.1-36.p01.ky10或以上版本 rpm-help-4.15.1-36.p01.ky10或以上版本 rpm-libs-4.15.1-36.p01.ky10或以上版本 rpm-plugin-systemd-inhibit-4.15.1-36.p01.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 SP3 aarch64:https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/ 银河麒麟高级服务器操作系统（Host版）V10 aarch64:https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/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-2021-20266:无需重启操作系统与服务即可使漏洞修复生效。 CVE-2021-20271:无需重启操作系统与服务即可使漏洞修复生效。 CVE-2021-3421: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 SP3 rpm(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/python2-rpm-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/python3-rpm-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/rpm-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/rpm-build-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/rpm-devel-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/rpm-help-4.15.1-36.p01.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/rpm-libs-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/aarch64/Packages/rpm-plugin-systemd-inhibit-4.15.1-36.p01.ky10.aarch64.rpm rpm(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/python2-rpm-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/python3-rpm-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/rpm-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/rpm-build-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/rpm-devel-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/rpm-help-4.15.1-36.p01.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/rpm-libs-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10SP3/os/adv/lic/base/x86_64/Packages/rpm-plugin-systemd-inhibit-4.15.1-36.p01.ky10.x86_64.rpm ·银河麒麟高级服务器操作系统（Host版）V10 rpm(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/python2-rpm-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/python3-rpm-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/rpm-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/rpm-build-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/rpm-devel-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/rpm-help-4.15.1-36.p01.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/rpm-libs-4.15.1-36.p01.ky10.aarch64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/aarch64/Packages/rpm-plugin-systemd-inhibit-4.15.1-36.p01.ky10.aarch64.rpm rpm(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/python2-rpm-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/python3-rpm-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/rpm-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/rpm-build-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/rpm-devel-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/rpm-help-4.15.1-36.p01.ky10.noarch.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/rpm-libs-4.15.1-36.p01.ky10.x86_64.rpm https://update.cs2c.com.cn/NS/V10/HOST/SP3/os/adv/lic/base/x86_64/Packages/rpm-plugin-systemd-inhibit-4.15.1-36.p01.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