CVE-2022-20476 Denial of service in Android

Medium 5.5 Published Updated

A local attacker can cause an Android device to enter an infinite reboot loop via resource exhaustion in PackageManager, requiring no privileges or 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-2022-20476?

CVE-2022-20476 is a medium-severity denial of service vulnerability in Google Android, published on 13 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In setEnabledSetting of PackageManager.java, there is a possible way to get the device into an infinite reboot loop due to resource exhaustion. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-240936919

Weakness: CWE-835

Which versions are affected by CVE-2022-20476?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20476?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-20476 being exploited?

There is no known exploitation of CVE-2022-20476 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-240936919, ASB-A-240936919, GHSA-vcrw-r7fp-q5gx, UBUNTU-CVE-2022-20476.

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