1. 修復的CVE CVE-2017-18198 GNU libcdio是一個光盤輸入和控制庫，其中包含了用于訪問CD-ROM和CD鏡像的函數庫。 GNU libcdio 1.0.0之前版本中的iso-info.c文件的‘print_iso9660_recurse’函數存在堆緩沖區溢出漏洞。遠程攻擊者可借助特制的iso文件利用該漏洞造成拒絕服務（基于堆的緩沖區越邊界讀取）。 CVE-2017-18199 GNU libcdio是一個光盤輸入和控制庫，其中包含了用于訪問CD-ROM和CD鏡像的函數庫。GNU libcdio 1.0.0之前版本中的rock.c文件的‘realloc_symlink’函數存在安全漏洞。遠程攻擊者可借助特制的iso文件利用該漏洞造成拒絕服務（空指針逆向引用）。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V4 SP1、銀河麒麟桌面操作系統V4 SP2、銀河麒麟桌面操作系統V4 SP3、銀河麒麟桌面操作系統V4 SP4 x86_64 架構： libcdio-cdda1、libcdio-paranoia1、libcdio-utils、libcdio13、libiso9660-8、libudf0 arm64 架構： libcdio-cdda1、libcdio-paranoia1、libcdio-utils、libcdio13、libiso9660-8、libudf0 mips64el 架構： libcdio-cdda1、libcdio-paranoia1、libcdio-utils、libcdio13、libiso9660-8、libudf0 3. 軟件包修復版本 ·銀河麒麟桌面操作系統V4 SP1、銀河麒麟桌面操作系統V4 SP2、銀河麒麟桌面操作系統V4 SP3、銀河麒麟桌面操作系統V4 SP4 0.83-4.2kord1+esm1 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 libcdio-paranoia1 $sudo apt install libcdio-cdda1 $sudo apt install libcdio-utils $sudo apt install libcdio13 $sudo apt install libiso9660-8 $sudo apt install libudf0 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V4 x86_64軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-cdda1_0.83-4.2kord1%2Besm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-paranoia1_0.83-4.2kord1%2Besm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-utils_0.83-4.2kord1%2Besm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio13_0.83-4.2kord1%2Besm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libiso9660-8_0.83-4.2kord1%2Besm1_amd64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libudf0_0.83-4.2kord1%2Besm1_amd64.deb arm64軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-cdda1_0.83-4.2kord1%2Besm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-paranoia1_0.83-4.2kord1%2Besm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-utils_0.83-4.2kord1%2Besm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio13_0.83-4.2kord1%2Besm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libiso9660-8_0.83-4.2kord1%2Besm1_arm64.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libudf0_0.83-4.2kord1%2Besm1_arm64.deb mips64el軟件包下載地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-cdda1_0.83-4.2kord1%2Besm1_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-paranoia1_0.83-4.2kord1%2Besm1_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio-utils_0.83-4.2kord1%2Besm1_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libcdio13_0.83-4.2kord1%2Besm1_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libiso9660-8_0.83-4.2kord1%2Besm1_mips64el.deb http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/libc/libcdio/libudf0_0.83-4.2kord1%2Besm1_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。