1. 修復的CVE

CVE-2021-20240

gdk-pixbuf是一款圖像加載庫。GDK-PixBuf 存在數字錯誤漏洞，攻擊者可利用該漏洞可以觸發一個整數溢出，導致拒絕服務，并可能運行代碼

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：

gir1.2-gdkpixbuf-2.0、libgdk-pixbuf2.0-0、libgdk-pixbuf2.0-bin、libgdk-pixbuf2.0-common

arm64 架構：

gir1.2-gdkpixbuf-2.0、libgdk-pixbuf2.0-0、libgdk-pixbuf2.0-bin、libgdk-pixbuf2.0-common

mips64el 架構：

gir1.2-gdkpixbuf-2.0、libgdk-pixbuf2.0-0、libgdk-pixbuf2.0-bin、libgdk-pixbuf2.0-common

3. 軟件包修復版本

·銀河麒麟桌面操作系統V10 SP1

2.40.0+dfsg-3kylin0.2

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 libgdk-pixbuf2.0-0

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/main/g/gdk-pixbuf/gir1.2-gdkpixbuf-2.0_2.40.0%2Bdfsg-3kylin0.2_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-0_2.40.0%2Bdfsg-3kylin0.2_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-bin_2.40.0%2Bdfsg-3kylin0.2_amd64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-common_2.40.0%2Bdfsg-3kylin0.2_all.deb

arm64軟件包下載地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/gir1.2-gdkpixbuf-2.0_2.40.0%2Bdfsg-3kylin0.2_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-0_2.40.0%2Bdfsg-3kylin0.2_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-bin_2.40.0%2Bdfsg-3kylin0.2_arm64.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-common_2.40.0%2Bdfsg-3kylin0.2_all.deb

mips64el軟件包下載地址

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/gir1.2-gdkpixbuf-2.0_2.40.0%2Bdfsg-3kylin0.2_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-0_2.40.0%2Bdfsg-3kylin0.2_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-bin_2.40.0%2Bdfsg-3kylin0.2_mips64el.deb

http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/g/gdk-pixbuf/libgdk-pixbuf2.0-common_2.40.0%2Bdfsg-3kylin0.2_all.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。