CVE-2019-2112 Use after free in Android

High 7.8 Published 8 Jul 2019 Updated 4 Aug 2024

A use-after-free vulnerability in Android's alarm service allows local attackers to execute arbitrary code without user interaction or additional privileges.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-2112?

CVE-2019-2112 is a high-severity use after free vulnerability in Google Android, published on 8 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In several functions of alarm.cc, there is possible memory corruption due to a use after free. This could lead to local code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-117997080.

Weakness: CWE-787, CWE-416

Which versions are affected by CVE-2019-2112?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2019-2112?

No fix has been published for CVE-2019-2112 yet. Limit exposure of the affected software until one is available.

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-2019-2112 being exploited?

There is no known exploitation of CVE-2019-2112 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-5rg9-94xf-ccpj.