CVE:CVE-2021-30906
CNNVD:CNNVD-202108-1997
Apple iOS等都是美国苹果（Apple）公司的产品。Apple iOS是一套为移动设备所开发的操作系统。Apple tvOS是一套智能电视操作系统。Apple watchOS是一套智能手表操作系统。
Apple 多款产品存在权限许可和访问控制问题漏洞，本地攻击者利用该漏洞可能能够提升他们的特权。这个问题在iOS 15.1和iPadOS 15.1, macOS Monterey 12.0.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1修复。
solution:Upgrade apple ipados to a higher version than 15.1,and avoid the version (,15.1); Upgrade apple iphone_os to a higher version than 15.1,and avoid the version (,15.1); Upgrade apple mac_os_x to a higher version than 10.15.7,10.15.7,10.15.7:security_update_2020,10.15.7:security_update_2020-001,10.15.7:security_update_2020-005,10.15.7:security_update_2020-007,10.15.7:security_update_2021-001,10.15.7:security_update_2021-002,10.15.7:security_update_2021-003,10.15.7:security_update_2021-006,10.15.7:supplemental_update,and avoid the version [10.15,10.15.7),10.15.7,10.15.7:security_update_2020,10.15.7:security_update_2020-001,10.15.7:security_update_2020-005,10.15.7:security_update_2020-007,10.15.7:security_update_2021-001,10.15.7:security_update_2021-002,10.15.7:security_update_2021-003,10.15.7:security_update_2021-006,10.15.7:supplemental_update; Upgrade apple macos to a higher version than 11.6.1,12.0,and avoid the version [11.0,11.6.1),12.0; Upgrade apple tvos to a higher version than 15.1,and avoid the version (,15.1); Upgrade apple watchos to a higher version than 8.1,and avoid the version (,8.1)