CVE-2018-19017 Use after free in CX-Supervisor

High 8.8 Published 22 Jan 2019 Updated 17 Sep 2024

Attackers can execute arbitrary code by tricking users into opening a malicious project file in CX-Supervisor, requiring a software update to mitigate.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-19017?

CVE-2018-19017 is a high-severity use after free vulnerability in ICS-CERT CX-Supervisor, published on 22 Jan 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Several use after free vulnerabilities have been identified in CX-Supervisor (Versions 3.42 and prior). When processing project files, the application fails to check if it is referencing freed memory. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.

Weakness: CWE-416

Which versions are affected by CVE-2018-19017?

It affects 1 product.

Products include Omron Cx-Supervisor.

How do I fix CVE-2018-19017?

No fix has been published for CVE-2018-19017 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2018-19017 being exploited?

There is no known exploitation of CVE-2018-19017 in the wild and no public exploit code.

Sources

Also known as GHSA-8fhh-vxr2-9jc7.