1. 修复的CVE信息
CVE-2021-33515
Dovecot是一款开源的基于类Linux/UNIX系统的IMAP和POP3邮件服务器。Dovecot 2.3.15 之前版本的提交服务存在命令注入漏洞，该漏洞允许攻击者在 lib-smtp 中注入 STARTTLS 命令，敏感信息可以重定向到攻击者控制的地址。
2. 受影响的软件包
银河麒麟桌面操作系统V10 SP1
dovecot-auth-lua
dovecot-core
dovecot-dev
dovecot-gssapi
dovecot-imapd
dovecot-ldap
dovecot-lmtpd
dovecot-lucene
dovecot-managesieved
dovecot-mysql
dovecot-pgsql
dovecot-pop3d
dovecot-sieve
dovecot-solr
dovecot-sqlite
dovecot-submissiond
mail-stack-delivery
3. 影响的操作系统
银河麒麟桌面操作系统V10 SP1
4. 修复版本
软件包：dovecot
1:2.3.7.2-1kylin3.4(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 SP1
X86下载地址：
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-pgsql_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-mysql_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-sieve_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-core_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-ldap_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-sqlite_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-dev_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-pop3d_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-imapd_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-managesieved_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-lucene_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/mail-stack-delivery_2.3.7.2-1kylin3.4_all.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-gssapi_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-solr_2.3.7.2-1kylin3.4_amd64.deb
http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/d/dovecot/dovecot-lmtpd_2.3.7.2-1kylin3.4_amd64.deb
