CVE-2020-9894 Memory corruption in Safari
A remote attacker can trigger an out-of-bounds read to cause application crashes or execute arbitrary code on Apple devices and Safari.
- 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-2020-9894?
CVE-2020-9894 is a medium-severity memory corruption vulnerability in Apple Icloud, published on 16 Oct 2020. 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
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, Safari 13.1.2, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
Weakness: CWE-125
Which versions are affected by CVE-2020-9894?
It affects 7 products.
Products include Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos and 1 more.
How do I fix CVE-2020-9894?
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-2020-9894 being exploited?
There is no known exploitation of CVE-2020-9894 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2020-9894, GHSA-cgf9-hgh6-4hrm, UBUNTU-CVE-2020-9894.