A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 11.2, watchOS 4.2. An application may be able to execute arbitrary code with kernel privilege.
https://support.apple.com/en-us/HT208334
https://support.apple.com/en-us/HT208325
Source: Mitre, NVD
Published: 2021-12-23
Updated: 2022-01-06
Base Score: 9.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H