# CVE-2003-0231: Denial of service in n/a

> Authenticated users can crash or hang Microsoft SQL Server by sending a long request to a named pipe, causing denial of service.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **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:** 25 Jul 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-c4q6-6hmw-8vq8

## What is CVE-2003-0231?

CVE-2003-0231 is a medium-severity denial of service vulnerability in Microsoft Sql Server, published on 25 Jul 2003. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Microsoft SQL Server 7, 2000, and MSDE allows local or remote authenticated users to cause a denial of service (crash or hang) via a long request to a named pipe.

## Which versions are affected by CVE-2003-0231?

It affects 2 products.


Products: Microsoft Data Engine, Microsoft Sql Server.

## How do I fix CVE-2003-0231?

No fix has been published for CVE-2003-0231 yet. Limit exposure of the affected software until one is available.

## Is CVE-2003-0231 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0231 exists.

Public exploit code:

- Microsoft SQL Server 7.0/2000 / MSDE - Named Pipe Denial of Service (MS03-031) (exploitdb)

## Other vulnerabilities in Microsoft Sql Server

- [CVE-2002-1145](https://insights.sbomify.com/CVE-2002-1145/): Privilege escalation in n/a (critical 10.0)
- [CVE-2002-0721](https://insights.sbomify.com/CVE-2002-0721/): Privilege escalation in n/a (critical 10.0)
- [CVE-2008-0086](https://insights.sbomify.com/CVE-2008-0086/): Memory corruption in n/a (critical 9.0)
- [CVE-2008-0106](https://insights.sbomify.com/CVE-2008-0106/): Memory corruption in n/a (critical 9.0)
- [CVE-2008-0107](https://insights.sbomify.com/CVE-2008-0107/): Integer overflow in n/a (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0231 and fix it if it is affected.

What it is: CVE-2003-0231 is a medium-severity denial of service vulnerability in Microsoft Sql Server, published on 25 Jul 2003. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0231 exists.

Affected product: Microsoft Sql Server. 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-2003-0231/ (Markdown: https://insights.sbomify.com/CVE-2003-0231/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0231
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0231
- OSV: https://osv.dev/vulnerability/CVE-2003-0231

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0231/
Summaries are generated and may contain mistakes; the official description above is the record.