1. 修复的CVE CVE-2022-2929 ISC DHCP是美国ISC公司的一套开源的动态主机配置协议服务器软件。ISC DHCP 1.0至4.4.3版本、4.1-ESV-R1至4.1-ESV-R16-P1版本存在安全漏洞，该漏洞源于可以访问DHCP服务器的系统，发送经过精心设计的包含超过63个字节fqdn标签的DHCP数据包，最终可能导致服务器内存不足。 CVE-2022-2928 ISC DHCP是美国ISC公司的一套开源的动态主机配置协议服务器软件。ISC DHCP 4.4.0至4.4.3版本、4.1-ESV-R1至4.1-ESV-R16-P1版本存在安全漏洞，该漏洞源于当从add_option()调用函数option_code_hash_lookup()时，它会增加选项的refcount字段，但是没有对option_dereference()的相应调用来减少refcount字段，函数add_option()仅用于服务器对租约查询数据包的响应，每个租约查询响应都会为多个选项调用此函数，因此最终，引用计数器可能会溢出并导致服务器中止。 2. 受影响的操作系统及软件包 ·银河麒麟桌面操作系统V10 SP1 x86_64 架构： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server arm64 架构： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server mips64el 架构： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server loongarch64 架构： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server 3. 软件包修复版本 ·银河麒麟桌面操作系统V10 SP1 4.4.1-2.1kylin5.20.04.4 4. 修复方法 方法一：升级安装 执行更新命令进行升级 $sudo apt update $sudo apt install isc-dhcp-client $sudo apt install isc-dhcp-server 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 SP1 x86_64软件包下载地址 https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client-ddns_4.4.1-2.1kylin5.20.04.4_amd64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client_4.4.1-2.1kylin5.20.04.4_amd64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-common_4.4.1-2.1kylin5.20.04.4_amd64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-relay_4.4.1-2.1kylin5.20.04.4_amd64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server-ldap_4.4.1-2.1kylin5.20.04.4_amd64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server_4.4.1-2.1kylin5.20.04.4_amd64.deb arm64软件包下载地址 https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client-ddns_4.4.1-2.1kylin5.20.04.4_arm64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client_4.4.1-2.1kylin5.20.04.4_arm64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-common_4.4.1-2.1kylin5.20.04.4_arm64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-relay_4.4.1-2.1kylin5.20.04.4_arm64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server-ldap_4.4.1-2.1kylin5.20.04.4_arm64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server_4.4.1-2.1kylin5.20.04.4_arm64.deb mips64el软件包下载地址 https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client-ddns_4.4.1-2.1kylin5.20.04.4_mips64el.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client_4.4.1-2.1kylin5.20.04.4_mips64el.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-common_4.4.1-2.1kylin5.20.04.4_mips64el.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-relay_4.4.1-2.1kylin5.20.04.4_mips64el.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server-ldap_4.4.1-2.1kylin5.20.04.4_mips64el.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server_4.4.1-2.1kylin5.20.04.4_mips64el.deb loongarch64软件包下载地址 https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client-ddns_4.4.1-2.1kylin5.20.04.4_loongarch64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-client_4.4.1-2.1kylin5.20.04.4_loongarch64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-common_4.4.1-2.1kylin5.20.04.4_loongarch64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-relay_4.4.1-2.1kylin5.20.04.4_loongarch64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server-ldap_4.4.1-2.1kylin5.20.04.4_loongarch64.deb https://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/i/isc-dhcp/isc-dhcp-server_4.4.1-2.1kylin5.20.04.4_loongarch64.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。