CVE-2018-12203 Denial of service in Intel Platform Sample / Silicon Reference firmware

Medium 6.7 Published 14 Mar 2019 Updated 16 Sep 2024

Privileged local users can cause denial of service or execute arbitrary code in Intel Core processor firmware.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2018-12203?

CVE-2018-12203 is a medium-severity denial of service vulnerability in Intel Platform Sample / Silicon Reference firmware, published on 14 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Denial of service vulnerability in Platform Sample/ Silicon Reference firmware for 8th Generation Intel Core Processor, 7th Generation Intel Core Processor may allow privileged user to potentially execute arbitrary code via local access.

Which versions are affected by CVE-2018-12203?

It affects 2 products.

Products include Intel Platform Sample Firmware, Intel Silicon Reference Firmware.

How do I fix CVE-2018-12203?

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-2018-12203 being exploited?

There is no known exploitation of CVE-2018-12203 in the wild and no public exploit code.

Sources

Also known as GHSA-46wx-mvg2-p27m, UBUNTU-CVE-2018-12203.