CVE-2021-30865 Memory corruption in macOS
A malicious application can execute arbitrary code with kernel privileges due to an out-of-bounds read in macOS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-30865?
CVE-2021-30865 is a high-severity memory corruption vulnerability in Apple Mac Os X, published on 24 Aug 2021. It can only be exploited from the same machine or local network, 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 macOS Big Sur 11.6, Security Update 2021-005 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges.
Weakness: CWE-125
Which versions are affected by CVE-2021-30865?
It affects 2 products.
Products include Apple Mac Os X, Apple Macos.
How do I fix CVE-2021-30865?
No fix has been published for CVE-2021-30865 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-2021-30865 being exploited?
There is no known exploitation of CVE-2021-30865 in the wild and no public exploit code.