CVE-2016-9912 Denial of service in n/a

Medium 6.5 Published 23 Dec 2016 Updated 6 Aug 2024

A guest user can cause host memory leakage and denial of service in QEMU when the Virtio GPU device emulator is enabled.

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-2016-9912?

CVE-2016-9912 is a medium-severity denial of service vulnerability in Qemu Qemu, published on 23 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Quick Emulator (Qemu) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while destroying gpu resource object in 'virtio_gpu_resource_destroy'. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.

Weakness: CWE-772

Which versions are affected by CVE-2016-9912?

It affects 1 product.

Products include Qemu Qemu.

How do I fix CVE-2016-9912?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-9912 being exploited?

There is no known exploitation of CVE-2016-9912 in the wild and no public exploit code.

All Qemu Qemu vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-9912, GHSA-5x35-9r35-66x7, UBUNTU-CVE-2016-9912.