CVE-2023-20935 Information disclosure in Android

Medium 5.5 Published 19 Apr 2023 Updated 5 Feb 2025

A missing bounds check in Android deserialization allows local attackers to read out-of-bounds memory, leading to information disclosure 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-2023-20935?

CVE-2023-20935 is a medium-severity vulnerability in Google Android, published on 19 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In deserialize of multiple files, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure 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-256589724

Weakness: CWE-125

Which versions are affected by CVE-2023-20935?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-20935?

Apply the vendor's patch.

Is CVE-2023-20935 being exploited?

There is no known exploitation of CVE-2023-20935 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-256589724, ASB-A-256589724, GHSA-3gqm-7mxg-qm6g.