1. 修复的CVE CVE-2020-27827 0.8.0之前版本的lldpd中daemon/protocols/lldp.c中的lldp_decode函数存在缓冲区溢出，远程攻击者可借助涉及大量管理地址和TLV边界的向量，造成拒绝服务（守护程序崩溃）并可能执行任意代码。（CVE-2015-8011） 外部触发内存泄漏。 2. 受影响的操作系统及软件包 银河麒麟桌面操作系统V4桌面版 openvswitch-common openvswitch-dbg openvswitch-ipsec openvswitch-pki openvswitch-switch-dpdk openvswitch-switch openvswitch-test openvswitch-testcontroller openvswitch-vtep openvswitch ovn-central ovn-common ovn-docker ovn-host python-openvswitch 银河麒麟桌面操作系统V10桌面版 openvswitch-common openvswitch-dbg openvswitch-ipsec openvswitch-pki openvswitch-switch-dpdk openvswitch-switch openvswitch-test openvswitch-testcontroller openvswitch-vtep openvswitch ovn-central ovn-common ovn-docker ovn-host python-openvswitch 银河麒麟桌面操作系统V10 SP1 openvswitch-common openvswitch-pki openvswitch-source openvswitch-switch-dpdk openvswitch-test openvswitch-switch openvswitch-testcontroller openvswitch-vtep python3-openvswitch 3. 软件包修复版本 软件包：openvswitch 2.5.9-0kord0.16.04.3（V4、V10） 2.13.1-0kylin0.20.04.4（V10 SP1） 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。 4.0.2: http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2-desktop main restricted universe multiverse 4.0.2-sp1: http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp1-desktop main restricted universe multiverse 4.0.2-sp2: http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp2-desktop main restricted universe multiverse 4.0.2-sp3: http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp3-desktop main restricted universe multiverse 4.0.2-sp4: http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp4-desktop main restricted universe multiverse 10.0: http://archive.kylinos.cn/kylin/KYLIN-ALL 10.0 main restricted universe multiverse 10.0 SP1: http://archive.kylinos.cn/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 5. 软件包下载地址 麒麟操作系统V10桌面版、V4 x86_64软件包下载地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-common_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-ipsec_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-pki_2.5.9-0kord0.16.04.3_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch-dpdk_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-test_2.5.9-0kord0.16.04.3_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-testcontroller_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-vtep_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-central_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-common_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-docker_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-host_2.5.9-0kord0.16.04.3_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/python-openvswitch_2.5.9-0kord0.16.04.3_all.deb arm64软件包下载地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-common_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-ipsec_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-pki_2.5.9-0kord0.16.04.3_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-test_2.5.9-0kord0.16.04.3_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-testcontroller_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-vtep_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-central_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-common_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-docker_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/ovn-host_2.5.9-0kord0.16.04.3_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/python-openvswitch_2.5.9-0kord0.16.04.3_all.deb 银河麒麟桌面操作系统V10 SP1 x86_64软件包下载地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-common_2.13.1-0kylin0.20.04.4_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-pki_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-source_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch-dpdk_2.13.1-0kylin0.20.04.4_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch_2.13.1-0kylin0.20.04.4_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-test_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-testcontroller_2.13.1-0kylin0.20.04.4_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-vtep_2.13.1-0kylin0.20.04.4_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/python3-openvswitch_2.13.1-0kylin0.20.04.4_all.deb arm64软件包下载地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-common_2.13.1-0kylin0.20.04.4_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-pki_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-source_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch-dpdk_2.13.1-0kylin0.20.04.4_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch_2.13.1-0kylin0.20.04.4_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-test_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-testcontroller_2.13.1-0kylin0.20.04.4_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-vtep_2.13.1-0kylin0.20.04.4_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/python3-openvswitch_2.13.1-0kylin0.20.04.4_all.deb mips64el软件包下载地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-common_2.13.1-0kylin0.20.04.4_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-pki_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-source_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-switch_2.13.1-0kylin0.20.04.4_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-test_2.13.1-0kylin0.20.04.4_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-testcontroller_2.13.1-0kylin0.20.04.4_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/openvswitch-vtep_2.13.1-0kylin0.20.04.4_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/o/openvswitch/python3-openvswitch_2.13.1-0kylin0.20.04.4_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。