# CVE-1999-1214: Missing authorization in n/a

> Local attackers can cause denial of service by sending signals to arbitrary processes due to missing credential checks in the BSD kernel's asynchronous I/O facility.

- **Severity:** Low 2.1 (`AV:L/AC:L/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:** No
- **Published:** 9 Mar 2002
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-2wrh-h883-mcp8

## What is CVE-1999-1214?

CVE-1999-1214 is a low-severity missing authorization vulnerability in Freebsd Freebsd, published on 9 Mar 2002. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID.

Weakness: CWE-255

## Which versions are affected by CVE-1999-1214?

It affects 5 products.


Products: Bsd Bsd, Freebsd Freebsd, Netbsd Netbsd, Openbsd Openbsd, Sgi Irix.

## How do I fix CVE-1999-1214?

No fix has been published for CVE-1999-1214 yet. Limit exposure of the affected software until one is available.

## Is CVE-1999-1214 being exploited?

There is no known exploitation of CVE-1999-1214 in the wild and no public exploit code.

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2001-0670](https://insights.sbomify.com/CVE-2001-0670/): Memory corruption in n/a (high 7.5)
- [CVE-1999-1471](https://insights.sbomify.com/CVE-1999-1471/): Memory corruption in n/a (high 7.2)
- [CVE-2008-4609](https://insights.sbomify.com/CVE-2008-4609/): Denial of service in n/a (high 7.1)
- [CVE-2014-7250](https://insights.sbomify.com/CVE-2014-7250/): Denial of service in n/a (medium 5.0)
- [CVE-1999-1098](https://insights.sbomify.com/CVE-1999-1098/): Weak cryptography in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-1999-1214 and fix it if it is affected.

What it is: CVE-1999-1214 is a low-severity missing authorization vulnerability in Freebsd Freebsd, published on 9 Mar 2002. 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-1999-1214 in the wild and no public exploit code.

Affected product: Freebsd Freebsd. 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-1999-1214/ (Markdown: https://insights.sbomify.com/CVE-1999-1214/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-1999-1214
- NVD: https://nvd.nist.gov/vuln/detail/CVE-1999-1214
- OSV: https://osv.dev/vulnerability/CVE-1999-1214

---
From sbomify Insights: https://insights.sbomify.com/CVE-1999-1214/
Summaries are generated and may contain mistakes; the official description above is the record.