CVE-2020-0392 Use after free in Android

High 7.8 Published Updated

A double free vulnerability in Android's SurfaceFlinger allows local attackers to execute arbitrary code and escalate privileges without user interaction.

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-2020-0392?

CVE-2020-0392 is a high-severity use after free vulnerability in Google Android, published on 17 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In getLayerDebugInfo of SurfaceFlinger.cpp, there is a possible code execution due to a double free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11Android ID: A-150226608

Weakness: CWE-415

Which versions are affected by CVE-2020-0392?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-0392?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2020-0392 being exploited?

There is no known exploitation of CVE-2020-0392 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Google Android vulnerabilities

Sources

Also known as A-150226608, ASB-A-150226608, GHSA-qm5j-wrx2-x8ww.

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