1. 修复的CVE信息
CVE-2021-3520
Synacor Zimbra Collaboration Suite（ZCS）是美国Synacor公司的一款开源协同办公套件。该产品包括WebMail、日历、通信录等。Zimbra Collaboration Suite 8.8.15 Patch 23和9.0.0 Patch 16之前版本存在安全漏洞，该漏洞源于在代理请求中X-Host标头的值覆盖了Host标头的值，不会根据允许代理的主机白名单检查X-Host 标头的值。
2. 受影响的软件包
银河麒麟桌面操作系统V4
liblz4-1
liblz4-dev
liblz4-tool
lz4
银河麒麟桌面操作系统V10
liblz4-1
liblz4-dev
liblz4-tool
lz4
银河麒麟桌面操作系统V10 SP1
liblz4-1
liblz4-dev
liblz4-tool
lz4
3. 影响的操作系统
银河麒麟桌面操作系统V4 SP1
银河麒麟桌面操作系统V4 SP2
银河麒麟桌面操作系统V4 SP3
银河麒麟桌面操作系统V4 SP4
银河麒麟桌面操作系统V10
银河麒麟服务器操作系统V4 SP1
银河麒麟服务器操作系统V4 SP2
银河麒麟服务器操作系统V4 SP3
银河麒麟服务器操作系统V4 SP4
银河麒麟桌面操作系统V10 SP1
4. 修复版本
软件包：lz4
0.0~r131-2kord2+esm1k1（V4、V10）
1.9.2-2kylin0.20.04.1(V10 SP1)
5. 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。
4.0.2桌面版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2-desktop main restricted universe multiverse
4.0.2-sp1桌面版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp1-desktop main restricted universe multiverse
4.0.2-sp2桌面版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp2-desktop main restricted universe multiverse
4.0.2-sp3桌面版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp3-desktop main restricted universe multiverse
4.0.2-sp4桌面版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp4-desktop main restricted universe multiverse
10.0版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 10.0 main restricted universe multiverse
10SP1版本：http://archive.cyjm16888.com/kylin/KYLIN-ALL 10.1 main restricted universe multiverse
配置完成后执行更新命令进行升级。$sudo apt update
方法二：下载安装包进行升级安装
通过软件包地址下载软件包，使用软件包升级命令根据受影响的组件包列表 升级相关的组件包。$dpkg -i Packagelists
6. 软件包下载地址
银河麒麟桌面操作系统V10、V4
X86_64软件包下载地址：
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1-dbg_0.0~r131-2kord2+esm1k1_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1_0.0~r131-2kord2+esm1k1_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-dev_0.0~r131-2kord2+esm1k1_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-tool_0.0~r131-2kord2+esm1k1_amd64.deb
arm64软件包下载地址
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1-dbg_0.0~r131-2kord2+esm1k1_arm64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1_0.0~r131-2kord2+esm1k1_arm64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-dev_0.0~r131-2kord2+esm1k1_arm64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-tool_0.0~r131-2kord2+esm1k1_arm64.deb
银河麒麟桌面操作系统V10 SP1
X86_64软件包下载地址：
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-tool_1.9.2-2kylin0.20.04.1_all.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-dev_1.9.2-2kylin0.20.04.1_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1_1.9.2-2kylin0.20.04.1_amd64.deb
arm64软件包下载地址
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-tool_1.9.2-2kylin0.20.04.1_all.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-dev_1.9.2-2kylin0.20.04.1_arm64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1_1.9.2-2kylin0.20.04.1_arm64.deb
mips64el软件包下载地址
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-tool_1.9.2-2kylin0.20.04.1_all.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-dev_1.9.2-2kylin0.20.04.1_mips64el.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/l/lz4/liblz4-1_1.9.2-2kylin0.20.04.1_mips64el.deb
