1. 修復的CVE CVE-2021-3588 BlueZ是一款使用C語言編寫的藍牙協議堆棧，它主要用于提供對核心藍牙層和協議的支持。bluez存在緩沖區錯誤漏洞，該漏洞源于src/gatt-database.c 中的 cli_feat_read_cb() 函數在將 “offset” 變量用作讀取數組的索引之前不會對其執行邊界檢查。 CVE-2020-26558 Bluetooth Core Specification是一個規范。定義了開發人員用來創建構成蓬勃發展的藍牙生態系統的可互操作設備的技術構建塊。由藍牙特別興趣小組（SIG）監督，并由藍牙SIG工作組 定期更新和增強，以滿足不斷發展的技術和市場需求。Bluetooth Core Specification 2.1 版本至5.2版本存在授權問題漏洞，該漏洞源于Bluetooth LE and BR/EDR 的安全配對，攻擊者可利用該漏洞使用配對會話的正確Passkey與響應設備完成身份驗證配對。 CVE-2020-27153 BlueZ是一款使用C語言編寫的藍牙協議堆棧，它主要用于提供對核心藍牙層和協議的支持。 BlueZ 5.55之前版本存在安全漏洞，該漏洞源于在shared/att.c的gatttool Disconnect_cb（）例程中發現了一個雙精度釋放。 攻擊者可利用該漏洞能會導致拒絕服務或執行代碼。 CVE-2021-0129 描述：BlueZ是一款使用C語言編寫的藍牙協議堆棧，它主要用于提供對核心藍牙層和協議的支持。Intel BlueZ 存在訪問控制錯誤漏洞，該漏洞源于不正確的訪問控制可能會允許經過身份驗證的用戶通過相鄰訪問可能公開信息，攻擊者可通過該漏洞獲得敏感信息。 2. 受影響的操作系統及軟件包 ·銀河麒麟桌面操作系統V4 bluetooth bluez bluez-cups bluez-dbg bluez-hcidump bluez-obexd bluez-tests libbluetooth-dev libbluetooth3 libbluetooth3-dbg ·銀河麒麟桌面操作系統V10 bluetooth bluez bluez-cups bluez-dbg bluez-hcidump bluez-obexd bluez-tests libbluetooth-dev libbluetooth3 libbluetooth3-dbg ·銀河麒麟桌面操作系統V10 SP1 bluetooth bluez bluez-cups bluez-dbg bluez-hcidump bluez-obexd bluez-tests libbluetooth-dev libbluetooth3 libbluetooth3-dbg 3. 軟件包修復版本 軟件包：bluez 5.37-0kord5.4（V4、V10） 5.53-0kylin3.2(V10 SP1) 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。 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 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