# CVE-2003-0421: Denial of service in n/a

> Remote attackers can crash the Darwin Streaming Server by sending requests with MS-DOS device names to HTTP port 1220.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Jul 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-6v6f-c78w-p95p

## What is CVE-2003-0421?

CVE-2003-0421 is a critical denial of service vulnerability in n/a, published on 25 Jul 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Apple QuickTime / Darwin Streaming Server before 4.1.3f allows remote attackers to cause a denial of service (crash) via an MS-DOS device name (e.g. AUX) in a request to HTTP port 1220, a different vulnerability than CVE-2003-0502.

## Which versions are affected by CVE-2003-0421?

It affects 1 product.


Products: Apple Darwin Streaming Server.

## How do I fix CVE-2003-0421?

No fix has been published for CVE-2003-0421 yet. Limit exposure of the affected software until one is available.

## Is CVE-2003-0421 being exploited?

There is no known exploitation of CVE-2003-0421 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2007-0748](https://insights.sbomify.com/CVE-2007-0748/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-0749](https://insights.sbomify.com/CVE-2007-0749/): Memory corruption in n/a (critical 10.0)
- [CVE-2003-0426](https://insights.sbomify.com/CVE-2003-0426/): Auth bypass in n/a (critical 10.0)
- [CVE-2003-0502](https://insights.sbomify.com/CVE-2003-0502/): Path traversal in n/a (critical 10.0)
- [CVE-2004-1083](https://insights.sbomify.com/CVE-2004-1083/): Information disclosure in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0421 and fix it if it is affected.

What it is: CVE-2003-0421 is a critical denial of service vulnerability in n/a, published on 25 Jul 2003. 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-2003-0421 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-2003-0421/ (Markdown: https://insights.sbomify.com/CVE-2003-0421/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0421
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0421
- OSV: https://osv.dev/vulnerability/CVE-2003-0421

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0421/
Summaries are generated and may contain mistakes; the official description above is the record.