Buffer overflow in macOS - CVE-2023-40396
Published: July 23, 2024 / Updated: July 23, 2024
Vulnerability identifier: #VU94677
CSH Severity: Low
CVSS v4 BT: 5.9 [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/E:U/U:Clear]
CVE-ID: CVE-2023-40396
CWE-ID: CWE-119
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 boundary error in IOUserEthernet. A local user can trigger memory corruption and execute arbitrary code with kernel privileges.
Affected software
macOS
tvOS
watchOS
Apple iOS
iPadOS
tvOS
watchOS
Apple iOS
iPadOS
How to mitigate CVE-2023-40396
Install updates from vendor's website.
macOS - update to 14.0 23A344
tvOS - update to 17.0
watchOS - update to 10.0
Apple iOS - update to 17.0 21A327
iPadOS - update to 17.0
tvOS - update to 17.0
watchOS - update to 10.0
Apple iOS - update to 17.0 21A327
iPadOS - update to 17.0