CVE-2018-4438 Memory corruption in iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows
A logic issue causing memory corruption allows attackers to execute arbitrary code on Apple devices and related software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-4438?
CVE-2018-4438 is a high-severity memory corruption vulnerability in Apple Icloud, published on 3 Apr 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.
Weakness: CWE-119
Which versions are affected by CVE-2018-4438?
It affects 6 products.
Products include Apple Icloud, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos, Apple Watchos.
How do I fix CVE-2018-4438?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-4438 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-4438 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2018-4438, GHSA-6mmf-48v9-cph4, UBUNTU-CVE-2018-4438.