CVE-2021-0919 Integer overflow in Android

Medium 5.0 Published Updated

An integer overflow in Android's service manager allows local attackers to cause a denial of service, rendering the lockscreen unusable.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2021-0919?

CVE-2021-0919 is a medium-severity vulnerability in Google Android, published on 15 Dec 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In getService of IServiceManager.cpp, there is a possible unhandled exception due to an integer overflow. This could lead to local denial of service making the lockscreen unusable with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-9Android ID: A-197336441

Weakness: CWE-190

Which versions are affected by CVE-2021-0919?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0919?

Apply the vendor's patch.

Is CVE-2021-0919 being exploited?

There is no known exploitation of CVE-2021-0919 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-197336441, ASB-A-197336441, GHSA-m3vj-6h83-w76q.

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