CVE-2021-1050 Memory corruption in Android

High 7.8 Published Updated

A missing bounds check in the PowerVR kernel driver allows local attackers to perform an out-of-bounds write, leading to privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2021-1050?

CVE-2021-1050 is a high-severity memory corruption vulnerability in Google Android, published on 8 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In MMU_UnmapPages of the PowerVR kernel driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-243825200

Weakness: CWE-787

Which versions are affected by CVE-2021-1050?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-1050?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-1050 being exploited?

There is no known exploitation of CVE-2021-1050 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-243825200, ASB-A-243825200, GHSA-vjw4-x6qj-hqcp.

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