CVE-2019-9271 Use after free in Android

Medium 6.4 Published Updated

A race condition in the Android kernel mnh driver allows a local attacker with system privileges to achieve privilege escalation via use-after-free.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-9271?

CVE-2019-9271 is a medium-severity use after free vulnerability in Google Android, published on 6 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Android kernel in the mnh driver there is a race condition due to insufficient locking. This could lead to a use-after-free which could lead to escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-416, CWE-362

Which versions are affected by CVE-2019-9271?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2019-9271?

No fix has been published for CVE-2019-9271 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-2019-9271 being exploited?

There is no known exploitation of CVE-2019-9271 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-rmg9-43c7-724f.

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