CVE-2019-9469 Memory corruption in Android

High 7.8 Published 6 Jan 2020 Updated 4 Aug 2024

A local attacker can exploit an out-of-bounds write in the Android kernel to escalate privileges 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: None listed

What is CVE-2019-9469?

CVE-2019-9469 is a high-severity memory corruption vulnerability in Google Android, published on 6 Jan 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In km_compute_shared_hmac of km4.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-130246677

Weakness: CWE-787

Which versions are affected by CVE-2019-9469?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2019-9469?

No fix has been published for CVE-2019-9469 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-9469 being exploited?

There is no known exploitation of CVE-2019-9469 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-7r77-wpf5-66wc.