CVE-2018-8873 Denial of service in n/a

High 7.8 Published 20 Mar 2018 Updated 16 Sep 2024

Local attackers can cause a Blue Screen of Death in 2345 Security Guard via improper input validation in the network firewall 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-2018-8873?

CVE-2018-8873 is a high-severity denial of service vulnerability in n/a, published on 20 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In 2345 Security Guard 3.6, the driver file (2345NetFirewall.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 0x00222040.

Weakness: CWE-20

Which versions are affected by CVE-2018-8873?

It affects 1 product.

Products include 2345 Security Guard Project 2345 Security Guard.

How do I fix CVE-2018-8873?

No fix has been published for CVE-2018-8873 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-2018-8873 being exploited?

There is no known exploitation of CVE-2018-8873 in the wild and no public exploit code.

Sources

Also known as GHSA-f8qh-hrm3-298c.