# CVE-2023-52427: Denial of service in n/a

> A segmentation fault occurs in OpenDDS when a DataWriter is configured with an excessively large max_samples value, causing a denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Feb 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-h7x2-hfmv-h4xf

## What is CVE-2023-52427?

CVE-2023-52427 is a high-severity denial of service vulnerability in n/a, published on 11 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In OpenDDS through 3.27, there is a segmentation fault for a DataWriter with a large value of resource_limits.max_samples. NOTE: the vendor's position is that the product is not designed to handle a max_samples value that is too large for the amount of memory on the system.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2023-52427?

It affects 1 product.


Products: Objectcomputing Opendds.

## How do I fix CVE-2023-52427?

No fix has been published for CVE-2023-52427 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-52427 being exploited?

There is no known exploitation of CVE-2023-52427 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-38447](https://insights.sbomify.com/CVE-2021-38447/): OCI OpenDDS Secure Amplification (high 8.6)
- [CVE-2025-67111](https://insights.sbomify.com/CVE-2025-67111/): Integer overflow in n/a (high 7.5)
- [CVE-2023-37915](https://insights.sbomify.com/CVE-2023-37915/): Malformed PID_PROPERTY_LIST parameter in DATA submessage remotely crashes OpenDDS (high 7.5)
- [CVE-2021-38445](https://insights.sbomify.com/CVE-2021-38445/): OCI OpenDDS Secure Improper Handling of Length Parameter Inconsistency (high 7.0)
- [CVE-2021-38429](https://insights.sbomify.com/CVE-2021-38429/): OCI OpenDDS Secure Network Amplification (medium 6.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-52427 and fix it if it is affected.

What it is: CVE-2023-52427 is a high-severity denial of service vulnerability in n/a, published on 11 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-52427 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-2023-52427/ (Markdown: https://insights.sbomify.com/CVE-2023-52427/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-52427
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-52427
- OSV: https://osv.dev/vulnerability/CVE-2023-52427

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-52427/
Summaries are generated and may contain mistakes; the official description above is the record.