# CVE-2006-5679: Integer overflow in n/a

> Local root users can trigger a kernel panic or execute code via a crafted UFS filesystem due to an integer overflow in FreeBSD.

- **Severity:** Medium 4.6 (`AV:L/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Nov 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-cchc-f6vf-rmcw

## What is CVE-2006-5679?

CVE-2006-5679 is a medium-severity vulnerability in Freebsd Freebsd, published on 3 Nov 2006. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Integer overflow in the ffs_mountfs function in FreeBSD 6.1 allows local users to cause a denial of service (panic) and possibly execute arbitrary code via a crafted UFS filesystem that causes invalid or large size parameters to be provided to the kmem_alloc function. NOTE: a third party states that this issue does not cross privilege boundaries in FreeBSD because only root may mount a filesystem.

Weakness: CWE-189

## Which versions are affected by CVE-2006-5679?

It affects 1 product.


Products: Freebsd Freebsd.

## How do I fix CVE-2006-5679?

No fix has been published for CVE-2006-5679 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-5679 being exploited?

There is no known exploitation of CVE-2006-5679 in the wild and no public exploit code.

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2018-17160](https://insights.sbomify.com/CVE-2018-17160/): Memory corruption in FreeBSD (critical 10.0)
- [CVE-2014-3954](https://insights.sbomify.com/CVE-2014-3954/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-4304](https://insights.sbomify.com/CVE-2006-4304/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-0226](https://insights.sbomify.com/CVE-2006-0226/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0002](https://insights.sbomify.com/CVE-2004-0002/): Denial of service in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-5679 and fix it if it is affected.

What it is: CVE-2006-5679 is a medium-severity vulnerability in Freebsd Freebsd, published on 3 Nov 2006. 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-2006-5679 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-2006-5679/ (Markdown: https://insights.sbomify.com/CVE-2006-5679/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-5679
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-5679
- OSV: https://osv.dev/vulnerability/CVE-2006-5679

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-5679/
Summaries are generated and may contain mistakes; the official description above is the record.