1. 修复的CVE CVE-2017-18198 GNU libcdio是一个光盘输入和控制库，其中包含了用于访问CD-ROM和CD镜像的函数库。 GNU libcdio 1.0.0之前版本中的iso-info.c文件的‘print_iso9660_recurse’函数存在堆缓冲区溢出漏洞。远程攻击者可借助特制的iso文件利用该漏洞造成拒绝服务（基于堆的缓冲区越边界读取）。 CVE-2017-18199 GNU libcdio是一个光盘输入和控制库，其中包含了用于访问CD-ROM和CD镜像的函数库。GNU libcdio 1.0.0之前版本中的rock.c文件的‘realloc_symlink’函数存在安全漏洞。远程攻击者可借助特制的iso文件利用该漏洞造成拒绝服务（空指针逆向引用）。 2. 受影响的操作系统及软件包 ·银河麒麟桌面操作系统V4 SP1、银河麒麟桌面操作系统V4 SP2、银河麒麟桌面操作系统V4 SP3、银河麒麟桌面操作系统V4 SP4 x86_64 架构： libcdio-cdda1、libcdio-paranoia1、libcdio-utils、libcdio13、libiso9660-8、libudf0 arm64 架构： libcdio-cdda1、libcdio-paranoia1、libcdio-utils、libcdio13、libiso9660-8、libudf0 mips64el 架构： libcdio-cdda1、libcdio-paranoia1、libcdio-utils、libcdio13、libiso9660-8、libudf0 3. 软件包修复版本 ·银河麒麟桌面操作系统V4 SP1、银河麒麟桌面操作系统V4 SP2、银河麒麟桌面操作系统V4 SP3、银河麒麟桌面操作系统V4 SP4 0.83-4.2kord1+esm1 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 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V4 x86_64软件包下载地址 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软件包下载地址 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软件包下载地址 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。