1. 修復的CVE信息
CVE-2021-20277
描述：針對AD DC LDAP服務器的用戶控制的LDAP篩選器字符串可能會使LDAP服務器崩潰。
CVE-2020-27840
描述：匿名攻擊者可以通過發送輕松制作的DN作為綁定請求的一部分來使Samba AD DC LDAP服務器崩潰。更嚴重的堆損壞也可能發生。
2. 受影響的操作系統
銀河麒麟桌面操作系統V4 SP1
銀河麒麟桌面操作系統V4 SP2
銀河麒麟桌面操作系統V4 SP3
銀河麒麟桌面操作系統V4 SP4
銀河麒麟桌面操作系統V10
銀河麒麟桌面操作系統V10 SP1
銀河麒麟服務器操作系統V4 SP1
銀河麒麟服務器操作系統V4 SP2
銀河麒麟服務器操作系統V4 SP3
銀河麒麟服務器操作系統V4 SP4
3. 修復版本
軟件包：ldb
libldb1-2:1.1.24-1kord3.2（V4、V10）
libldb2-2:2.0.10-0kylin0.20.04.3（V10 SP1）
4. 受影響的軟件包
銀河麒麟桌面操作系統V4桌面版
ldb-tools
libldb-dev
libldb1-dbg
libldb1
python-ldb-dbg
python-ldb-dev
python-ldb
python3-ldb-dbg
python3-ldb-dev
python3-ldb
銀河麒麟桌面操作系統V10桌面版
ldb-tools
libldb-dev
libldb1-dbg
libldb1
python-ldb-dbg
python-ldb-dev
python-ldb
python3-ldb-dbg
python3-ldb-dev
python3-ldb
銀河麒麟桌面操作系統V10 SP1
ldb-tools
libldb-dev
libldb2
python3-ldb-dev
python3-ldb
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
麒麟操作系統V10桌面版、V4
X86_64軟件包下載地址：
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/ldb-tools_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb-dev_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb1-dbg_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb1_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python-ldb-dbg_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python-ldb-dev_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python-ldb_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python3-ldb-dbg_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python3-ldb-dev_1.1.24-1kord3.2_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python3-ldb_1.1.24-1kord3.2_amd64.deb
arm64軟件包下載地址：
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/ldb-tools_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb-dev_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb1-dbg_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb1_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python-ldb-dbg_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python-ldb-dev_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python-ldb_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python3-ldb-dbg_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python3-ldb-dev_1.1.24-1kord3.2_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/python3-ldb_1.1.24-1kord3.2_arm64.deb
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/l/ldb/ldb-tools_2.0.10-0kylin0.20.04.3_amd64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb2_2.0.10-0kylin0.20.04.3_amd64.deb
arm64軟件包下載地址：
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/ldb-tools_2.0.10-0kylin0.20.04.3_arm64.deb
http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/l/ldb/libldb2_2.0.10-0kylin0.20.04.3_arm64.deb
mips64el軟件包下載地址：
