1. 修復的CVE

CVE-2021-21261

Flatpak是一套用于Linux桌面應用計算機環境的應用程序虛擬化系統。Flatpak 存在注入漏洞，該漏洞源于flatpak-portal允許沙箱應用程序在主機系統上執行任意代碼(沙箱逃脫)。

2. 受影響的操作系統及軟件包

·銀河麒麟桌面操作系統V10 SP1

x86_64 架構：

flatpak-tests、flatpak、gir1.2-flatpak-1.0、libflatpak0

arm64 架構：

flatpak-tests、flatpak、gir1.2-flatpak-1.0、libflatpak0

mips64el 架構：

flatpak-tests、flatpak、gir1.2-flatpak-1.0、libflatpak0

3. 軟件包修復版本

·銀河麒麟桌面操作系統V10 SP1

1.6.5-0kylin0.3

4. 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。

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

$sudo apt install flatpak

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V10 SP1

x86_64軟件包下載地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/flatpak-tests_1.6.5-0kylin0.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/flatpak_1.6.5-0kylin0.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/gir1.2-flatpak-1.0_1.6.5-0kylin0.3_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/libflatpak0_1.6.5-0kylin0.3_amd64.deb

arm64軟件包下載地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/flatpak-tests_1.6.5-0kylin0.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/flatpak_1.6.5-0kylin0.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/gir1.2-flatpak-1.0_1.6.5-0kylin0.3_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/libflatpak0_1.6.5-0kylin0.3_arm64.deb

mips64el軟件包下載地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/flatpak-tests_1.6.5-0kylin0.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/flatpak_1.6.5-0kylin0.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/gir1.2-flatpak-1.0_1.6.5-0kylin0.3_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/universe/f/flatpak/libflatpak0_1.6.5-0kylin0.3_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與修復版本一致則成功修復。

$sudo dpkg -l |grep Package

注：Package為軟件包包名。