Buffer overflow in WebKitGTK+ and WPE WebKit - CVE-2023-42866
Published: December 26, 2023
Vulnerability identifier: #VU84748
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-2023-42866
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 when processing HTML content in WebKit. A remote attacker can trick the victim to open a specially crafted website, 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
WebKitGTK+
WPE WebKit
tvOS
watchOS
macOS
iPadOS
Apple iOS
Apple Safari
WPE WebKit
tvOS
watchOS
macOS
iPadOS
Apple iOS
Apple Safari
How to mitigate CVE-2023-42866
Install updates from vendor's website.
tvOS - update to 16.6
Apple Safari - update to 16.6
watchOS - update to 9.6 20U73
macOS - update to 13.5 22G74
iPadOS - update to 16.6
Apple iOS - update to 16.6 20G75
Apple Safari - update to 16.6
watchOS - update to 9.6 20U73
macOS - update to 13.5 22G74
iPadOS - update to 16.6
Apple iOS - update to 16.6 20G75