1. 修复的CVE

CVE-2021-21300

Git是一套免费、开源的分布式版本控制系统。

Git 存在后置链接漏洞，该漏洞允许攻击者利用特别制作的存储库导致just-checked脚本执行而克隆到一个不区分大小写的文件系统。

2. 受影响的操作系统及软件包

·银河麒麟桌面操作系统V10

x86_64 架构：

git-all、git-arch、git-core、git-cvs、git-daemon-run、git-daemon-sysvinit、git-el、git-email、git-gui、git-man、git-mediawiki、git-svn、git、gitk、gitweb

arm64 架构：

git-all、git-arch、git-core、git-cvs、git-daemon-run、git-daemon-sysvinit、git-el、git-email、git-gui、git-man、git-mediawiki、git-svn、git、gitk、gitweb

3. 软件包修复版本

·银河麒麟桌面操作系统V10

1:2.7.4-0kord1.10

4. 修复方法

方法一：配置源进行升级安装

打开软件包源配置文件，根据仓库地址进行修改。

10.0:

http://archive.kylinos.cn/kylin/KYLIN-ALL 10.0 main restricted universe multiverse

配置完成后执行更新命令进行升级

$sudo apt update

$sudo apt install git

方法二：下载软件包进行升级安装

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升级相关的组件包。

$sudo dpkg -i /Path1/Package1 /Path2/Package2 /Path3/Package3……

注：Path 指软件包下载到本地的路径，Package指下载的软件包名称，多个软件包则以空格分开。

5. 软件包下载地址

银河麒麟桌面操作系统V10

x86_64软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-all_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-arch_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-core_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-cvs_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-daemon-run_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-daemon-sysvinit_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-el_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-email_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-gui_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-man_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-mediawiki_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-svn_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git_2.7.4-0kord1.10_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/gitk_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/gitweb_2.7.4-0kord1.10_all.deb

arm64软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-all_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-arch_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-core_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-cvs_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-daemon-run_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-daemon-sysvinit_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-el_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-email_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-gui_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-man_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-mediawiki_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git-svn_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/git_2.7.4-0kord1.10_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/gitk_2.7.4-0kord1.10_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/git/gitweb_2.7.4-0kord1.10_all.deb

6. 修复验证

使用软件包查询命令，查看相关的软件包版本大于或等于修复版本则成功修复。

$sudo dpkg -l |grep Package

注：Package为软件包包名。