Type Confusion in macOS - CVE-2021-30745
Published: May 21, 2021
Vulnerability identifier: #VU53404
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-2021-30745
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 within the QuartzCore Framework. A local user can run a specially crafted program to trigger a type confusion error and execute arbitrary code on the system in the context of WindowServer.
Affected software
macOS
How to mitigate CVE-2021-30745
Install updates from vendor's website.
macOS - update to 10.15.7 19H1030