Memory corruption in Apple iOS - CVE-2018-4437

Vulnerability identifier: #VU16303

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-2018-4437

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in the Webkit component. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Apple iOS
Arch Linux
watchOS
tvOS
Opensuse
Fedora
WebKitGTK+
webkit2gtk (Alpine package)
webkit2gtk3
iCloud for Windows
Apple Safari
iTunes

Update to version 12.1.1.

Apple iOS - update to 12.1.1 16C50
WebKitGTK+ - update to 2.22.5
webkit2gtk (Alpine package) - update to 2.22.7-r0
watchOS - update to 5.1.2
iCloud for Windows - update to 7.9
tvOS - update to 12.1.1
Apple Safari - update to 12.0.2
iTunes - update to 12.9.2
webkit2gtk3 - addressed in versions 2.22.5-1.fc28, 2.22.5-1.fc29

• https://support.apple.com/en-us/HT209340

• Multiple vulnerabilities in Apple iOS
• Multiple vulnerabilities in Apple iTunes
• Multiple vulnerabilities in Apple iCloud
• Multiple vulnerabilities in Apple Safari
• Multiple vulnerabilities in Apple tvOS
• Multiple vulnerabilities in Apple watchOS
• Remote code execution in WebKitGTK+
• Arch Linux update for webkit2gtk
• OpenSUSE Linux update for webkit2gtk3
• OpenSUSE Linux update for webkit2gtk3
• Memory corruption in webkit2gtk (Alpine package)
• Fedora 28 update for webkit2gtk3
• Fedora 29 update for webkit2gtk3