CVE-2019-8746 Memory corruption in iOS
A remote attacker can trigger an out-of-bounds read leading to application termination or arbitrary code execution on Apple operating systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-8746?
CVE-2019-8746 is a critical memory corruption vulnerability in Apple Icloud, published on 27 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15, iOS 13, iCloud for Windows 7.14, iCloud for Windows 10.7, tvOS 13, macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, watchOS 6, iTunes 12.10.1 for Windows. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
Weakness: CWE-125
Which versions are affected by CVE-2019-8746?
It affects 6 products.
Products include Apple Icloud, Apple Iphone Os, Apple Itunes, Apple Mac Os X, Apple Tvos, Apple Watchos.
How do I fix CVE-2019-8746?
No fix has been published for CVE-2019-8746 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-8746 being exploited?
There is no known exploitation of CVE-2019-8746 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as GHSA-wc35-x492-36g5.