CVE-2006-3468

Linux kernel 2.6.x - Denial of Service via NFS EXT3 File Handle Error

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-3468. PoCs published by James McKenzie.

AI-analyzed exploit summary This is a writeup describing a remote denial-of-service vulnerability in the Linux kernel's EXT3 filesystem code, triggered by crafted UDP datagrams to NFS servers. The issue can cause filesystem errors, remounting as read-only, or kernel panic.

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by James McKenzie · textdoslinux
https://www.exploit-db.com/exploits/28358

This is a writeup describing a remote denial-of-service vulnerability in the Linux kernel's EXT3 filesystem code, triggered by crafted UDP datagrams to NFS servers. The issue can cause filesystem errors, remounting as read-only, or kernel panic.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Linux kernel versions 2.6.14.4, 2.6.17.6, 2.6.17.7, and likely other 2.6 series
No auth needed
Prerequisites: Target must be configured as an NFS server · Attacker must be able to send UDP datagrams to the target
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (24)

Core 24
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2006-0617.html
Various Sources x_refsource_misc
http://lkml.org/lkml/2006/7/17/41
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21934
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9809
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21847
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21605
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDKSA-2006:150
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDKSA-2006:151
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21614
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2006_64_kernel.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21369
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/19396
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/22174
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/22822
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/22148
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-346-1
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2006_21_sr.html
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2006_22_sr.html
Vendor Advisory vendor-advisory x_refsource_trustix
http://www.trustix.org/errata/2006/0046/
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/22093
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2006/dsa-1184
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2006_57_kernel.html

Scores

EPSS 0.1569
EPSS Percentile 96.5%

Details

Status published
Products (11)
linux/linux_kernel 2.6.0 (14 CPE variants)
linux/linux_kernel 2.6.1 (4 CPE variants)
linux/linux_kernel 2.6.2 (4 CPE variants)
linux/linux_kernel 2.6.3 (5 CPE variants)
linux/linux_kernel 2.6.4 (4 CPE variants)
linux/linux_kernel 2.6.5 (4 CPE variants)
linux/linux_kernel 2.6.6 (4 CPE variants)
linux/linux_kernel 2.6.7 (4 CPE variants)
linux/linux_kernel 2.6.8 (5 CPE variants)
linux/linux_kernel 2.6.8.1
... and 1 more
Published Jul 21, 2006
Tracked Since Feb 18, 2026