CVE-2018-19020 Memory corruption in CX-Supervisor

Medium 5.0 Published 12 Feb 2019 Updated 17 Sep 2024

An attacker can cause an out-of-bounds read in CX-Supervisor by tampering with project file offsets, potentially leading to crashes or data exposure.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-19020?

CVE-2018-19020 is a medium-severity memory corruption vulnerability in ICS-CERT CX-Supervisor, published on 12 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

When CX-Supervisor (Versions 3.42 and prior) processes project files and tampers with the value of an offset, an attacker can force the application to read a value outside of an array.

Weakness: CWE-125

Which versions are affected by CVE-2018-19020?

It affects 1 product.

Products include Omron Cx-Supervisor.

How do I fix CVE-2018-19020?

No fix has been published for CVE-2018-19020 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-19020 being exploited?

There is no known exploitation of CVE-2018-19020 in the wild and no public exploit code.

Sources

Also known as GHSA-p7ph-f6cp-xg28.