CVE-2018-9538 Memory corruption in Android

High 7.8 Published Updated

An out-of-bounds read in the Android video decoder 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
None listed

What is CVE-2018-9538?

CVE-2018-9538 is a high-severity memory corruption vulnerability in Google Android, published on 6 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In V4L2SliceVideoDecodeAccelerator::Dequeue of v4l2_slice_video_decode_accelerator.cc, there is a possible out of bounds read of a function pointer due to an incorrect bounds check. 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-8.1 Android-9. Android ID: A-112181526.

Weakness: CWE-125

Which versions are affected by CVE-2018-9538?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2018-9538?

No fix has been published for CVE-2018-9538 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-2018-9538 being exploited?

There is no known exploitation of CVE-2018-9538 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-55ww-j5xf-75qm.

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