# CVE-2004-0814: Race condition in n/a

> Local users can read kernel data or remote attackers can cause a system panic via race conditions in the Linux terminal layer.

- **Severity:** Low 1.2 (`AV:L/AC:H/Au:N/C:N/I:N/A:P`)
- **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:** Yes
- **Published:** 28 Oct 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-6mch-53wc-3fvc

## What is CVE-2004-0814?

CVE-2004-0814 is a low-severity vulnerability in Linux kernel, published on 28 Oct 2004. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Multiple race conditions in the terminal layer in Linux 2.4.x, and 2.6.x before 2.6.9, allow (1) local users to obtain portions of kernel data via a TIOCSETD ioctl call to a terminal interface that is being accessed by another thread, or (2) remote attackers to cause a denial of service (panic) by switching from console to PPP line discipline, then quickly sending data that is received during the switch.

## Which versions are affected by CVE-2004-0814?

It affects 2 products.


Products: Linux kernel, Ubuntu Ubuntu Linux.

## How do I fix CVE-2004-0814?

Upgrade to a fixed version.

## Is CVE-2004-0814 being exploited?

There is no known exploitation of CVE-2004-0814 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-0814 and fix it if it is affected.

What it is: CVE-2004-0814 is a low-severity vulnerability in Linux kernel, published on 28 Oct 2004. 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-2004-0814 in the wild and no public exploit code.

Affected product: Linux kernel. 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-2004-0814/ (Markdown: https://insights.sbomify.com/CVE-2004-0814/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-0814
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-0814
- OSV: https://osv.dev/vulnerability/CVE-2004-0814

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-0814/
Summaries are generated and may contain mistakes; the official description above is the record.