1. 修復的CVE CVE-2020-27827 0.8.0之前版本的lldpd中daemon/protocols/lldp.c中的lldp_decode函數存在緩沖區溢出，遠程攻擊者可借助涉及大量管理地址和TLV邊界的向量，造成拒絕服務（守護程序崩潰）并可能執行任意代碼。（CVE-2015-8011） 外部觸發內存泄漏。 2. 受影響的操作系統及軟件包 銀河麒麟桌面操作系統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 銀河麒麟桌面操作系統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 銀河麒麟桌面操作系統V10 SP1 openvswitch-common openvswitch-pki openvswitch-source openvswitch-switch-dpdk openvswitch-test openvswitch-switch openvswitch-testcontroller openvswitch-vtep python3-openvswitch 3. 軟件包修復版本 軟件包：openvswitch 2.5.9-0kord0.16.04.3（V4、V10） 2.13.1-0kylin0.20.04.4（V10 SP1） 4. 修復方法 方法一：配置源進行升級安裝 打開軟件包源配置文件，根據倉庫地址進行修改。 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 配置完成后執行更新命令進行升級 $sudo apt update 方法二：下載安裝包進行升級安裝 通過軟件包地址下載軟件包，使用軟件包升級命令根據受影響的組件包列表 升級相關的組件包。$dpkg -i Packagelists 5. 軟件包下載地址 麒麟操作系統V10桌面版、V4 x86_64軟件包下載地址 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軟件包下載地址 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 銀河麒麟桌面操作系統V10 SP1 x86_64軟件包下載地址 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軟件包下載地址 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軟件包下載地址 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. 修復驗證 使用軟件包查詢命令，查看相關的軟件包版本大于或等于修復版本則成功修復。 $sudo dpkg -l |grep Package 注：Package為軟件包包名。