1. 修復的CVE信息

• CVE-2021-3781

  Artifex Software Ghostscript是美國Artifex Software公司的一款開源的PostScript（一種用于電子產業和桌面出版領域的頁面描述語言和編程語言）解析器。該產品可顯示Postscript文件以及在非Postscript打印機上打印Postscript文件。ghostscript interpreter 存在代碼注入漏洞，攻擊者可以利用該漏洞在系統上執行任意命令。

2. 影響的操作系統

銀河麒麟桌面操作系統V10 SP1

3. 修復版本

軟件包：ghostscript

9.50~dfsg-5kylin4.3(V10 SP1)

4. 受影響的軟件包

• 銀河麒麟桌面操作系統V10 SP1

ghostscript

ghostscript-dbg

ghostscript-doc

ghostscript-x

libgs-dev

libgs9

libgs9-common

5. 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

6. 軟件包下載地址

• 銀河麒麟桌面操作系統V10 SP1

  X86_64軟件包下載地址：

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript_9.50~dfsg-5kylin4.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-x_9.50~dfsg-5kylin4.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs-dev_9.50~dfsg-5kylin4.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-dbg_9.50~dfsg-5kylin4.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-doc_9.50~dfsg-5kylin4.3_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs9_9.50~dfsg-5kylin4.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs9-common_9.50~dfsg-5kylin4.3_all.deb

arm64軟件包下載地址：

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript_9.50~dfsg-5kylin4.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-x_9.50~dfsg-5kylin4.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs-dev_9.50~dfsg-5kylin4.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-dbg_9.50~dfsg-5kylin4.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-doc_9.50~dfsg-5kylin4.3_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs9_9.50~dfsg-5kylin4.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs9-common_9.50~dfsg-5kylin4.3_all.deb

mips64el軟件包下載地址：

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript_9.50~dfsg-5kylin4.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-x_9.50~dfsg-5kylin4.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs-dev_9.50~dfsg-5kylin4.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-dbg_9.50~dfsg-5kylin4.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/ghostscript-doc_9.50~dfsg-5kylin4.3_all.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs9_9.50~dfsg-5kylin4.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/ghostscript/libgs9-common_9.50~dfsg-5kylin4.3_all.deb