CVE-2018-8991 Denial of service in n/a

High 7.8 Published 25 Mar 2018 Updated 5 Aug 2024

Local attackers can cause a system crash via improper input validation in the Windows Optimization Master driver.

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-2018-8991?

CVE-2018-8991 is a high-severity denial of service vulnerability in n/a, published on 25 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In Windows Master (aka Windows Optimization Master) 7.99.13.604, the driver file (WoptiHWDetect.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0xf1002009.

Weakness: CWE-20

Which versions are affected by CVE-2018-8991?

It affects 1 product.

Products include Windows Optimization Master Project Windows Optimization Master.

How do I fix CVE-2018-8991?

No fix has been published for CVE-2018-8991 yet. Limit exposure of the affected software until one is available.

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-2018-8991 being exploited?

There is no known exploitation of CVE-2018-8991 in the wild and no public exploit code.

Sources

Also known as GHSA-jj4j-qfrm-gwjj.