1. 修復的CVE CVE-2021-31535 X.Org libX11是X.Org（X.org）基金會的一個X11（X Window系統）客戶端庫。libX11 存在安全漏洞，該漏洞源于XLookupColor和其他X庫函數缺乏對其字符串參數長度的適當驗證。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V4 libx11-6 libx11-data libx11-dev libx11-doc libx11-xcb-dev libx11-xcb1 ·銀河麒麟桌面操作系統V10 libx11-6 libx11-data libx11-dev libx11-doc libx11-xcb-dev libx11-xcb1 ·銀河麒麟桌面操作系統V10 SP1 libx11-6 libx11-data libx11-dev libx11-doc libx11-xcb-dev libx11-xcb1 3. 軟件包修復版本 軟件包：libx11 1.6.3-1kord2.2+esm1（V4、V10） 2:1.6.9-2kylin1.2(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-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/libx/libx11/libx11-6-dbg_1.6.3-1kord2.2+esm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-6_1.6.3-1kord2.2+esm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-data_1.6.3-1kord2.2+esm1_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-dev_1.6.3-1kord2.2+esm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-doc_1.6.3-1kord2.2+esm1_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb-dev_1.6.3-1kord2.2+esm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1-dbg_1.6.3-1kord2.2+esm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1_1.6.3-1kord2.2+esm1_amd64.deb arm64軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-6-dbg_1.6.3-1kord2.2+esm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-6_1.6.3-1kord2.2+esm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-data_1.6.3-1kord2.2+esm1_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-dev_1.6.3-1kord2.2+esm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-doc_1.6.3-1kord2.2+esm1_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb-dev_1.6.3-1kord2.2+esm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1-dbg_1.6.3-1kord2.2+esm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1_1.6.3-1kord2.2+esm1_arm64.deb 麒麟操作系統桌面版V10 SP1 X86_64軟件包下載地址： http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-6_1.6.9-2kylin1.2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-data_1.6.9-2kylin1.2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb-dev_1.6.9-2kylin1.2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1_1.6.9-2kylin1.2_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-doc_1.6.9-2kylin1.2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-dev_1.6.9-2kylin1.2_amd64.deb arm64軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-6_1.6.9-2kylin1.2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-data_1.6.9-2kylin1.2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb-dev_1.6.9-2kylin1.2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1_1.6.9-2kylin1.2_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-doc_1.6.9-2kylin1.2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-dev_1.6.9-2kylin1.2_arm64.deb mips64el軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-6_1.6.9-2kylin1.2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-data_1.6.9-2kylin1.2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb-dev_1.6.9-2kylin1.2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-xcb1_1.6.9-2kylin1.2_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-doc_1.6.9-2kylin1.2_all.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libx/libx11/libx11-dev_1.6.9-2kylin1.2_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。