Buffer overflow in macOS - CVE-2023-40432

Vulnerability identifier: #VU81138

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-2023-40432

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the Apple Neural Engine. A local user can trigger memory corruption and execute arbitrary code with kernel privileges.

macOS
watchOS
iPadOS
tvOS
Apple iOS

Install updates from vendor's website.

macOS - update to 14.0 23A344
watchOS - update to 10.0
iPadOS - update to 17.0
tvOS - update to 17.0
Apple iOS - addressed in versions 17.0 21A326, 17.0 21A327, 17.0 21A329, 17.0 21A331

• https://support.apple.com/en-us/HT213940

• Multiple vulnerabilities in Apple macOS Sonoma
• Multiple vulnerabilities in Apple iOS 17 and iPadOS 17
• Multiple vulnerabilities in Apple tvOS 17
• Multiple vulnerabilities in Apple watchOS 10