Buffer overflow in macOS - CVE-2022-32839
Published: July 20, 2022
Vulnerability identifier: #VU65591
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-32839
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in CoreText. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
macOS
watchOS
iPadOS
Apple iOS
tvOS
watchOS
iPadOS
Apple iOS
tvOS
How to mitigate CVE-2022-32839
Install updates from vendor's website.
macOS - addressed in versions 12.5 21G72, 10.15.7 19H2026, 11.6.8 20G730
iPadOS - update to 15.6 19G71
Apple iOS - update to 15.6 19G71
tvOS - update to 15.6 19M65
iPadOS - update to 15.6 19G71
Apple iOS - update to 15.6 19G71
tvOS - update to 15.6 19M65