# CVE-2017-17443: Denial of service in n/a

> Attackers with file system access can crash the OPC Foundation Local Discovery Server by modifying its configuration file, causing service unavailability.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-47f2-fccf-w99j

## What is CVE-2017-17443?

CVE-2017-17443 is a medium-severity denial of service vulnerability in n/a, published on 13 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OPC Foundation Local Discovery Server (LDS) 1.03.370 required a security update to resolve multiple vulnerabilities that allow attackers to trigger a crash by placing invalid data into the configuration file. This vulnerability requires an attacker with access to the file system where the configuration file is stored; however, if the configuration file is altered the LDS will be unavailable until it is repaired.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-17443?

It affects 1 product.


Products: Opcfoundation Local Discovery Server.

## How do I fix CVE-2017-17443?

No fix has been published for CVE-2017-17443 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-17443 being exploited?

There is no known exploitation of CVE-2017-17443 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-44725](https://insights.sbomify.com/CVE-2022-44725/): Path traversal in n/a (high 7.8)
- [CVE-2017-11672](https://insights.sbomify.com/CVE-2017-11672/): Privilege escalation in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-17443 and fix it if it is affected.

What it is: CVE-2017-17443 is a medium-severity denial of service vulnerability in n/a, published on 13 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-17443 in the wild and no public exploit code.

Affected product: n/a. 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-2017-17443/ (Markdown: https://insights.sbomify.com/CVE-2017-17443/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-17443
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-17443
- OSV: https://osv.dev/vulnerability/CVE-2017-17443

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-17443/
Summaries are generated and may contain mistakes; the official description above is the record.