A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A local user may be able to cause unexpected system termination or read kernel memory.
https://support.apple.com/en-us/HT212530
Source: MITRE
Published: 2021-09-08
Updated: 2021-09-16
Type: NVD-CWE-noinfo
Base Score: 6.6
Vector: AV:L/AC:L/Au:N/C:C/I:N/A:C
Impact Score: 9.2
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 7.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Impact Score: 5.2
Exploitability Score: 1.8
Severity: HIGH