CVE-2019-6221 Memory corruption in iOS

High 7.8 Published Updated

A malicious application can exploit an out-of-bounds read to elevate privileges on Apple operating systems.

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-2019-6221?

CVE-2019-6221 is a high-severity memory corruption vulnerability in Apple Iphone Os, published on 5 Mar 2019. 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 bounds checking. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, iTunes 12.9.3 for Windows. A malicious application may be able to elevate privileges.

Weakness: CWE-125

Which versions are affected by CVE-2019-6221?

It affects 3 products.

Products include Apple Iphone Os, Apple Itunes, Apple Mac Os X.

How do I fix CVE-2019-6221?

No fix has been published for CVE-2019-6221 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-2019-6221 being exploited?

There is no known exploitation of CVE-2019-6221 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-8q99-37vx-7hjm.

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