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

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

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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 available:** No
- **Published:** 22 Jan 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-8fhh-vxr2-9jc7

## 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 (Use After Free)

## Which versions are affected by CVE-2018-19017?

It affects 1 product.


Products: 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.

## Is CVE-2018-19017 being exploited?

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

## Other vulnerabilities in ICS-CERT CX-Supervisor

- [CVE-2019-18251](https://insights.sbomify.com/CVE-2019-18251/): Other in Omron CX-Supervisor (high 8.8)
- [CVE-2018-19011](https://insights.sbomify.com/CVE-2018-19011/): Code injection in CX-Supervisor (high 8.8)
- [CVE-2018-17905](https://insights.sbomify.com/CVE-2018-17905/): Memory corruption in CX-Supervisor (high 7.8)
- [CVE-2018-17909](https://insights.sbomify.com/CVE-2018-17909/): Use after free in CX-Supervisor (high 7.8)
- [CVE-2018-17913](https://insights.sbomify.com/CVE-2018-17913/): Memory corruption in CX-Supervisor (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-19017 and fix it if it is affected.

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

Affected product: ICS-CERT CX-Supervisor. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-19017/ (Markdown: https://insights.sbomify.com/CVE-2018-19017/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-19017
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-19017
- OSV: https://osv.dev/vulnerability/CVE-2018-19017

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-19017/
Summaries are generated and may contain mistakes; the official description above is the record.