Memory corruption in Apple iOS - CVE-2018-4386
Published: October 31, 2018 / Updated: June 17, 2021
Vulnerability identifier: #VU15651
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-2018-4386
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to a boundary error in WebKit component when handling malicious input. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with kernel privileges.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
Apple iOS
watchOS
tvOS
iCloud for Windows
Apple Safari
iTunes
watchOS
tvOS
iCloud for Windows
Apple Safari
iTunes
How to mitigate CVE-2018-4386
Update to version 12.1.
Apple iOS - update to 12.1 16B92
watchOS - update to 5.1
iCloud for Windows - update to 7.8
tvOS - update to 12.1
Apple Safari - update to 12.0.1
iTunes - update to 12.9.1
watchOS - update to 5.1
iCloud for Windows - update to 7.8
tvOS - update to 12.1
Apple Safari - update to 12.0.1
iTunes - update to 12.9.1