# CVE-2023-50716: Invalid DATA_FRAG Submessage causes a bad-free error

> An attacker can remotely terminate the Fast DDS process by sending an invalid DATA_FRAG submessage, causing a bad-free error.

- **Severity:** Critical 9.7 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 6 Mar 2024
- **Updated:** 2 Aug 2024
- **Also known as:** DEBIAN-CVE-2023-50716, GHSA-5m2f-hvj2-cx2h, UBUNTU-CVE-2023-50716

## What is CVE-2023-50716?

CVE-2023-50716 is a critical use after free vulnerability in eProsima Fast-DDS, published on 6 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

eProsima Fast DDS (formerly Fast RTPS) is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.13.0, 2.12.2, 2.11.3, 2.10.3, and 2.6.7, an invalid DATA_FRAG Submessage causes a bad-free error, and the Fast-DDS process can be remotely terminated. If an invalid Data_Frag packet is sent, the `Inline_qos, SerializedPayload` member of object `ch` will attempt to release memory without initialization, resulting in a 'bad-free' error. Versions 2.13.0, 2.12.2, 2.11.3, 2.10.2, and 2.6.7 fix this issue.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2023-50716?

It affects 1 product.


Products: Eprosima Fast Dds.

## How do I fix CVE-2023-50716?

Upgrade to a fixed version.

## Is CVE-2023-50716 being exploited?

There is no known exploitation of CVE-2023-50716 in the wild and no public exploit code.

## Other vulnerabilities in eProsima Fast-DDS

- [CVE-2025-67108](https://insights.sbomify.com/CVE-2025-67108/): Security feature bypass in n/a (critical 10.0)
- [CVE-2024-28231](https://insights.sbomify.com/CVE-2024-28231/): Manipulated DATA Submessage causes a heap-buffer-overflow error (critical 9.7)
- [CVE-2023-50257](https://insights.sbomify.com/CVE-2023-50257/): Disconnect Vulnerability in RTPS Packets Used by SROS2 (critical 9.7)
- [CVE-2023-42459](https://insights.sbomify.com/CVE-2023-42459/): Malformed DATA submessage leads to bad-free error in Fast-DDS (high 8.6)
- [CVE-2024-30258](https://insights.sbomify.com/CVE-2024-30258/): FastDDS crash when publisher send malformed packet (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-50716 and fix it if it is affected.

What it is: CVE-2023-50716 is a critical use after free vulnerability in eProsima Fast-DDS, published on 6 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-50716 in the wild and no public exploit code.

Affected product: eProsima Fast-DDS. 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-2023-50716/ (Markdown: https://insights.sbomify.com/CVE-2023-50716/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-50716
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-50716
- OSV: https://osv.dev/vulnerability/CVE-2023-50716

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-50716/
Summaries are generated and may contain mistakes; the official description above is the record.