A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code.
Source: MITRE
Published: 2021-09-08
Updated: 2021-09-16
Type: CWE-125
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