1. 修復的CVE CVE-2022-2929 ISC DHCP是美國ISC公司的一套開源的動態主機配置協議服務器軟件。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，該漏洞源于可以訪問DHCP服務器的系統，發送經過精心設計的包含超過63個字節fqdn標簽的DHCP數據包，最終可能導致服務器內存不足。 CVE-2022-2928 ISC DHCP是美國ISC公司的一套開源的動態主機配置協議服務器軟件。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，該漏洞源于當從add_option()調用函數option_code_hash_lookup()時，它會增加選項的refcount字段，但是沒有對option_dereference()的相應調用來減少refcount字段，函數add_option()僅用于服務器對租約查詢數據包的響應，每個租約查詢響應都會為多個選項調用此函數，因此最終，引用計數器可能會溢出并導致服務器中止。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V10 SP1 x86_64 架構： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server arm64 架構： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server mips64el 架構： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server loongarch64 架構： isc-dhcp-client-ddns、isc-dhcp-client、isc-dhcp-common、isc-dhcp-relay、isc-dhcp-server-ldap、isc-dhcp-server 3. 軟件包修復版本 ·銀河麒麟桌面操作系統V10 SP1 4.4.1-2.1kylin5.20.04.4 4. 修復方法 方法一：升級安裝 執行更新命令進行升級 $sudo apt update $sudo apt install isc-dhcp-client $sudo apt install isc-dhcp-server 方法二：下載軟件包進行升級安裝 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軟件包列表升級相關的組件包。 $sudo dpkg -i /Path1/Package1 /Path2/Package2 /Path3/Package3…… 注：Path 指軟件包下載到本地的路徑，Package指下載的軟件包名稱，多個軟件包則以空格分開。 5. 軟件包下載地址 銀河麒麟桌面操作系統V10 SP1 x86_64軟件包下載地址 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軟件包下載地址 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軟件包下載地址 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軟件包下載地址 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。