1. 修復的CVE CVE-2021-25220 ISC BIND是美國ISC公司的一套實現了DNS協議的開源軟件。ISC BIND 存在安全漏洞，該漏洞源于已經收緊了接受記錄到緩存中的規則，以防止如果轉發器在配置的范圍之外發送記錄可能會中毒。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V10 x86_64 架構： bind9-host、bind9、bind9utils、dnsutils、host、libbind9-140、libdns-export162、libdns162、libirs-export141、libirs141、libisc-export160、libisc160、libisccc-export140、libisccc140、libisccfg-export140、libisccfg140、liblwres141、lwresd arm64 架構： bind9-host、bind9、bind9utils、dnsutils、host、libbind9-140、libdns-export162、libdns162、libirs-export141、libirs141、libisc-export160、libisc160、libisccc-export140、libisccc140、libisccfg-export140、libisccfg140、liblwres141、lwresd mips64el 架構： bind9-host、bind9、bind9utils、dnsutils、host、libbind9-140、libdns-export162、libdns162、libirs-export141、libirs141、libisc-export160、libisc160、libisccc-export140、libisccc140、libisccfg-export140、libisccfg140、liblwres141、lwresd 3. 軟件包修復版本 ·銀河麒麟桌面操作系統V10 1:9.10.3.dfsg.P4-8kord1.19+esm2 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 bind9 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 x86_64軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9-host_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9utils_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/dnsutils_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/host_9.10.3.dfsg.P4-8kord1.19%2Besm2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libbind9-140_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libdns-export162_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libdns162_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libirs-export141_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libirs141_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisc-export160_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisc160_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccc-export140_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccc140_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccfg-export140_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccfg140_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/liblwres141_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/lwresd_9.10.3.dfsg.P4-8kord1.19%2Besm2_amd64.deb arm64軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9-host_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9utils_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/dnsutils_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/host_9.10.3.dfsg.P4-8kord1.19%2Besm2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libbind9-140_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libdns-export162_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libdns162_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libirs-export141_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libirs141_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisc-export160_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisc160_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccc-export140_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccc140_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccfg-export140_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccfg140_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/liblwres141_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/lwresd_9.10.3.dfsg.P4-8kord1.19%2Besm2_arm64.deb mips64el軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9-host_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9utils_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/dnsutils_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/host_9.10.3.dfsg.P4-8kord1.19%2Besm2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libbind9-140_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libdns-export162_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libdns162_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libirs-export141_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libirs141_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisc-export160_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisc160_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccc-export140_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccc140_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccfg-export140_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/libisccfg140_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/liblwres141_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/lwresd_9.10.3.dfsg.P4-8kord1.19%2Besm2_mips64el.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。