# CVE-2023-37008: Memory corruption in n/a

> A buffer overflow in Open5GS MME allows attackers to crash the service or potentially execute arbitrary code via malicious S1AP messages.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jan 2025
- **Updated:** 28 Jan 2025
- **Also known as:** GHSA-xh3r-5ccq-fg8p

## What is CVE-2023-37008?

CVE-2023-37008 is a medium-severity memory corruption vulnerability in Open5gs Open5gs, published on 22 Jan 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Open5GS MME versions <= 2.6.4 contain a buffer overflow in the ASN.1 deserialization function of the S1AP handler. This buffer overflow causes type confusion in decoded fields, leading to invalid parsing and freeing of memory. An attacker may use this to crash an MME or potentially execute code in certain circumstances.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2023-37008?

It affects 1 product.


Products: Open5gs Open5gs.

## How do I fix CVE-2023-37008?

No fix has been published for CVE-2023-37008 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-37008 being exploited?

There is no known exploitation of CVE-2023-37008 in the wild and no public exploit code.

## Other vulnerabilities in Open5gs Open5gs

- [CVE-2024-40130](https://insights.sbomify.com/CVE-2024-40130/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-28122](https://insights.sbomify.com/CVE-2021-28122/): Missing authorization in n/a (critical 9.8)
- [CVE-2021-25863](https://insights.sbomify.com/CVE-2021-25863/): Hardcoded credentials in n/a (high 8.8)
- [CVE-2025-41067](https://insights.sbomify.com/CVE-2025-41067/): Reachable Assertion vulnerability in Open5GS (high 8.7)
- [CVE-2025-41068](https://insights.sbomify.com/CVE-2025-41068/): Reachable Assertion vulnerability in Open5GS (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-37008 and fix it if it is affected.

What it is: CVE-2023-37008 is a medium-severity memory corruption vulnerability in Open5gs Open5gs, published on 22 Jan 2025. 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-2023-37008 in the wild and no public exploit code.

Affected product: Open5gs Open5gs. 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-2023-37008/ (Markdown: https://insights.sbomify.com/CVE-2023-37008/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-37008
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-37008
- OSV: https://osv.dev/vulnerability/CVE-2023-37008

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-37008/
Summaries are generated and may contain mistakes; the official description above is the record.