CVE-2020-0243 Use after free in Android

High 7.8 Published Updated

A use-after-free vulnerability in the Android media server allows local attackers to 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-2020-0243?

CVE-2020-0243 is a high-severity use after free vulnerability in Google Android, published on 11 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In clearPropValue of MediaAnalyticsItem.cpp, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the media server with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-8.0 Android-8.1Android ID: A-151644303

Weakness: CWE-667, CWE-416

Which versions are affected by CVE-2020-0243?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-0243?

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-2020-0243 being exploited?

There is no known exploitation of CVE-2020-0243 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-151644303, ASB-A-151644303, GHSA-3wpp-4hx4-q527.

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