CVE-2021-30781 Memory corruption in Security Update - Catalina
A local attacker can trigger unexpected application termination or arbitrary code execution in Apple operating systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-30781?
CVE-2021-30781 is a high-severity memory corruption vulnerability in Apple Iphone Os, published on 8 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This issue was addressed with improved checks. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. A local attacker may be able to cause unexpected application termination or arbitrary code execution.
Which versions are affected by CVE-2021-30781?
It affects 5 products.
Products include Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos, Apple Watchos.
How do I fix CVE-2021-30781?
No fix has been published for CVE-2021-30781 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-2021-30781 being exploited?
There is no known exploitation of CVE-2021-30781 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as GHSA-4jxj-cpjx-2v7r.