Type Confusion in macOS - CVE-2020-3853
Published: May 19, 2021
Vulnerability identifier: #VU53380
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3853
CWE-ID: CWE-843
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a type confusion error in OS kernel. A local user can run a specially crafted program to trigger type confusion and execute arbitrary code with elevated privileges.
Affected software
macOS
How to mitigate CVE-2020-3853
Install updates from vendor's website.
macOS - addressed in versions 10.13.6 17G11023, 10.14.6 18G3020, 10.15.3 19D76