1. 修复的CVE信息
CVE-2021-30499
libcaca是开源的一个软件库。可将图像转换为彩色ASCII艺术品。libcaca存在安全漏洞，该漏洞源于函数export troff中的export.c的缓冲区溢出可能会导致内存损坏和其他潜在后果。
CVE-2021-30498
libcaca是开源的一个软件库。可将图像转换为彩色ASCII艺术品。libcaca 存在安全漏洞，该漏洞源于程序的export.c文件中的堆缓冲区溢出可能导致内存损坏和其他潜在后果。
2. 影响的操作系统
银河和记官网登录桌面操作系统V4 SP1
银河和记官网登录桌面操作系统V4 SP2
银河和记官网登录桌面操作系统V4 SP3
银河和记官网登录桌面操作系统V4 SP4
银河和记官网登录桌面操作系统V10
银河和记官网登录服务器操作系统V4 SP1
银河和记官网登录服务器操作系统V4 SP2
银河和记官网登录服务器操作系统V4 SP3
银河和记官网登录服务器操作系统V4 SP4
银河和记官网登录桌面操作系统V10 SP1
3. 修复版本
软件包：libcaca
0.99.beta19-2kord0.16.04.2+esm1（V4、V10）
0.99.beta19-2.1kylin1.20.04.2（V10 SP1）
4. 受影响的软件包
银河和记官网登录桌面操作系统V4
caca-utils
libcaca-dev
libcaca0
银河和记官网登录桌面操作系统V10
caca-utils
libcaca-dev
libcaca0
银河和记官网登录桌面操作系统V10 SP1
caca-utils
libcaca-dev
libcaca0
5. 修复方法
方法一：配置源进行升级安装
打开软件包源配置文件，根据仓库地址进行修改。
4.0.2-sp1:https://archive.cq-jq.com/kylin/KYLIN-ALL 4.0.2sp1-desktop main restricted universe multiverse
4.0.2-sp2:https://archive.cq-jq.com/kylin/KYLIN-ALL 4.0.2sp2-desktop main restricted universe multiverse
4.0.2-sp3:https://archive.cq-jq.com/kylin/KYLIN-ALL 4.0.2sp3-desktop main restricted universe multiverse
4.0.2-sp4:https://archive.cq-jq.com/kylin/KYLIN-ALL 4.0.2sp4-desktop main restricted universe multiverse
10.0:https://archive.cq-jq.com/kylin/KYLIN-ALL 10.0 main restricted universe multiverse
10.0 SP1:https://archive.cq-jq.com/kylin/KYLIN-ALL 10.1 main restricted universe multiverse
配置完成后执行更新命令进行升级。$sudo apt update
方法二：下载安装包进行升级安装
通过软件包地址下载软件包，使用软件包升级命令根据受影响的组件包列表 升级相关的组件包。$dpkg -i Packagelists
6. 软件包下载地址
银河和记官网登录桌面操作系统V10、V4
X86_64软件包下载地址：
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/caca-utils_0.99.beta19-2kord0.16.04.2+esm1_amd64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca-dev_0.99.beta19-2kord0.16.04.2+esm1_amd64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca0_0.99.beta19-2kord0.16.04.2+esm1_amd64.deb
arm64软件包下载地址：
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/caca-utils_0.99.beta19-2kord0.16.04.2+esm1_arm64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca-dev_0.99.beta19-2kord0.16.04.2+esm1_arm64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca0_0.99.beta19-2kord0.16.04.2+esm1_arm64.deb
银河和记官网登录桌面操作系统V10 SP1
X86_64软件包下载地址：
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/caca-utils_0.99.beta19-2.1kylin1.20.04.2_amd64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca-dev_0.99.beta19-2.1kylin1.20.04.2_amd64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca0_0.99.beta19-2.1kylin1.20.04.2_amd64.deb
arm64软件包下载地址：
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/caca-utils_0.99.beta19-2.1kylin1.20.04.2_arm64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca-dev_0.99.beta19-2.1kylin1.20.04.2_arm64.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca0_0.99.beta19-2.1kylin1.20.04.2_arm64.deb
mips64el软件包下载地址：
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/caca-utils_0.99.beta19-2.1kylin1.20.04.2_mips64el.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca-dev_0.99.beta19-2.1kylin1.20.04.2_mips64el.deb
https://archive.cq-jq.com/kylin/KYLIN-ALL/pool/main/libc/libcaca/libcaca0_0.99.beta19-2.1kylin1.20.04.2_mips64el.deb
