CVE-2018-9465 Use after free in Android

High 7.8 Published Updated

A use-after-free vulnerability in the Android kernel binder driver allows local attackers 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
Available

What is CVE-2018-9465?

CVE-2018-9465 is a high-severity use after free vulnerability in Google Android, published on 6 Nov 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In task_get_unused_fd_flags of binder.c, there is a possible memory corruption due to a use after free. 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-69164715 References: Upstream kernel.

Weakness: CWE-416

Which versions are affected by CVE-2018-9465?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2018-9465?

Apply the vendor's patch.

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-2018-9465 being exploited?

There is no known exploitation of CVE-2018-9465 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-9465, GHSA-m54w-54j8-5qrp, UBUNTU-CVE-2018-9465.

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