CVE-2018-4126

Vulnerability

A memory corruption issue existed in multiple Apple operating systems and software. The vulnerability affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5, iTunes 12.9 for Windows, and iCloud for Windows 7.7. The issue was addressed with improved memory handling. [1][3][4]

Exploitation

An attacker would need to entice a user to open a malicious application or content. No additional privileges or special network position is required; the vulnerability can be triggered locally by a rogue app. The exact exploitation steps are not disclosed, but the memory corruption could be triggered by crafted input.

Impact

Successful exploitation could allow an application to execute arbitrary code with the privileges of the affected process, potentially leading to full system compromise.

Mitigation

Apple released fixes for the affected platforms on September 17, 2018 (iOS 12, tvOS 12) and September 24, 2018 (macOS Mojave 10.14). Users should update to the latest versions. No workarounds are available. [1][3][4]