1. 修复的CVE

CVE-2020-27841

OpenJPEG是一款基于C语言的开源JPEG2000编码解码器。

OpenJPEG 存在缓冲区错误漏洞，攻击者可利用该漏洞通过lib/openjp2/pi.c触发缓冲区溢出，以触发拒绝服务，并可能运行代码。

CVE-2020-27824

OpenJPEG是一款基于C语言的开源JPEG2000编码解码器。

OpenJPEG 存在缓冲区错误漏洞，该漏洞源于opj_dwt_calc_explicit_stepsizes函数。攻击者可利用该漏洞可以通过opj dwt计算OpenJPEG的显式stepsizes()来触发缓冲区溢出，以触发拒绝服务，并可能运行代码。

CVE-2020-27814

OpenJPEG是一款基于C语言的开源JPEG2000编码解码器。

OpenJPEG 2.3.1存在代码问题漏洞，该漏洞源于lib /openjp2/mqc.c中发现了堆缓冲区覆盖错误，导致越界写入。攻击者利用该漏洞导致远程拒绝服务或远程执行代码。

CVE-2020-27823

OpenJPEG是一款基于C语言的开源JPEG2000编码解码器。

OpenJPEG 存在缓冲区错误漏洞，该漏洞源于攻击者可利用该漏洞可以通过opj tcd dc level shift encode()触发缓冲区溢出，以触发拒绝服务，并可能运行代码。

CVE-2020-27845

OpenJPEG是一款基于C语言的开源JPEG2000编码解码器。

OpenJPEG 存在缓冲区错误漏洞，攻击者可利用该漏洞可以通过opj_pi_next_rlcp触发缓冲区溢出，以触发拒绝服务，并可能运行代码。

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：

libopenjp2-7、libopenjp2-tools、libopenjp3d-tools、libopenjp3d7、libopenjpip-dec-server、libopenjpip-server、libopenjpip-viewer、libopenjpip7

arm64 架构：

libopenjp2-7、libopenjp2-tools、libopenjp3d-tools、libopenjp3d7、libopenjpip-dec-server、libopenjpip-server、libopenjpip-viewer、libopenjpip7

mips64el 架构：

libopenjp2-7、libopenjp2-tools、libopenjp3d-tools、libopenjp3d7、libopenjpip-dec-server、libopenjpip-server、libopenjpip-viewer、libopenjpip7

·银河麒麟服务器操作系统V4 SP1、银河麒麟服务器操作系统V4 SP2、银河麒麟服务器操作系统V4 SP3、银河麒麟服务器操作系统V4 SP4

x86_64 架构：

libopenjp2-7、libopenjp2-tools、libopenjp3d-tools、libopenjp3d7、libopenjpip-dec-server、libopenjpip-server、libopenjpip-viewer、libopenjpip7

arm64 架构：

libopenjp2-7、libopenjp2-tools、libopenjp3d-tools、libopenjp3d7、libopenjpip-dec-server、libopenjpip-server、libopenjpip-viewer、libopenjpip7

mips64el 架构：

libopenjp2-7、libopenjp2-tools、libopenjp3d-tools、libopenjp3d7、libopenjpip-dec-server、libopenjpip-server、libopenjpip-viewer、libopenjpip7

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

2.1.2-1.1+deb9u6build0.16.04.1kord

·银河麒麟服务器操作系统V4 SP1、银河麒麟服务器操作系统V4 SP2、银河麒麟服务器操作系统V4 SP3、银河麒麟服务器操作系统V4 SP4

2.1.2-1.1+deb9u6build0.16.04.1kord

4. 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桌面版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp1-desktop main restricted universe multiverse

4.0.2-sp2桌面版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp2-desktop main restricted universe multiverse

4.0.2-sp3桌面版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp3-desktop main restricted universe multiverse

4.0.2-sp4桌面版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp4-desktop main restricted universe multiverse

4.0.2-sp1服务器版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp1-server main restricted universe multiverse

4.0.2-sp2服务器版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp2-server main restricted universe multiverse

4.0.2-sp3服务器版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp3-server main restricted universe multiverse

4.0.2-sp4服务器版:

http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp4-server main restricted universe multiverse

配置完成后执行更新命令进行升级

$sudo apt update

$sudo apt install libopenjp2-7

$sudo apt install libopenjp3d7

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/universe/o/openjpeg2/libopenjp2-7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-dec-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-viewer_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

arm64软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-dec-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-viewer_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

mips64el软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-dec-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-viewer_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

银河麒麟服务器操作系统V4

x86_64软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-dec-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-viewer_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_amd64.deb

arm64软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-dec-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-viewer_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_arm64.deb

mips64el软件包下载地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp2-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d-tools_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjp3d7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-dec-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-server_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip-viewer_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/o/openjpeg2/libopenjpip7_2.1.2-1.1%2Bdeb9u6build0.16.04.1kord_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。