CVE:CVE-2020-0556
CNNVD:CNNVD-202003-798
BlueZ是一款使用C语言编写的蓝牙协议堆栈，它主要用于提供对核心蓝牙层和协议的支持。
BlueZ 5.54之前版本中的子系统存在访问控制错误漏洞。攻击者可利用该漏洞提升权限或导致拒绝服务。
solution:Upgrade bluez bluez to a higher version than 5.54,and avoid the version (,5.54); Upgrade canonical ubuntu_linux to a higher version than 16.04,18.04,19.10,and avoid the version 16.04,18.04,19.10; Upgrade debian debian_linux to a higher version than 8.0,9.0,10.0,and avoid the version 8.0,9.0,10.0; Upgrade opensuse leap to a higher version than 15.1,15.2,and avoid the version 15.1,15.2