CVE-2023-20922 Denial of service in Android

Medium 5.5 Published Updated

A local attacker can cause a crash loop in Android via resource exhaustion in PackageManagerService, 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-2023-20922?

CVE-2023-20922 is a medium-severity denial of service vulnerability in Google Android, published on 24 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In setMimeGroup of PackageManagerService.java, there is a possible crash 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-11 Android-12 Android-12L Android-13Android ID: A-237291548

Weakness: CWE-400

Which versions are affected by CVE-2023-20922?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-20922?

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-2023-20922 being exploited?

There is no known exploitation of CVE-2023-20922 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-237291548, ASB-A-237291548, GHSA-2v8g-w9jx-fc2w.

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