CVE-2018-4306 Use after free in iOS, tvOS, Safari, iTunes for Windows, iCloud for Windows
A use-after-free vulnerability in Apple products allows attackers to execute arbitrary code via improved memory management fixes.
- 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-2018-4306?
CVE-2018-4306 is a high-severity use after free 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 use after free issue was addressed with improved memory management. This issue affected versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7.
Weakness: CWE-416
Which versions are affected by CVE-2018-4306?
It affects 5 products.
Products include Apple Icloud, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos.
How do I fix CVE-2018-4306?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2018-4306 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-4306 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2018-4306, GHSA-r7w2-7jjw-vqg5, UBUNTU-CVE-2018-4306.