CVE-2021-0998 Information disclosure in Android

Medium 5.5 Published 15 Dec 2021 Updated 3 Aug 2024

A heap buffer overflow in the Android H.264 encoder allows local attackers to read sensitive memory without user interaction or elevated 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: Available

What is CVE-2021-0998?

CVE-2021-0998 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, with no action from the victim.

Official description

In 'ih264e_find_bskip_params()' of ih264e_me.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-193442575

Weakness: CWE-125

Which versions are affected by CVE-2021-0998?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0998?

Apply the vendor's patch.

Is CVE-2021-0998 being exploited?

There is no known exploitation of CVE-2021-0998 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-193442575, GHSA-78vg-94xf-59v9, PUB-A-193442575.