CVE-2015-8818 Denial of service in n/a

Medium 5.5 Published 29 Dec 2016 Updated 6 Aug 2024

Local privileged guest users can crash the guest system by exploiting improper MMIO region handling in QEMU's memory write function.

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-2015-8818?

CVE-2015-8818 is a medium-severity denial of service vulnerability in Qemu Qemu, published on 29 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors.

Which versions are affected by CVE-2015-8818?

It affects 1 product.

Products include Qemu Qemu.

How do I fix CVE-2015-8818?

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-2015-8818 being exploited?

There is no known exploitation of CVE-2015-8818 in the wild and no public exploit code.

All Qemu Qemu vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-8818, GHSA-v5jw-2c5m-f8hv, UBUNTU-CVE-2015-8818.