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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Denial of Service >> Linux 2.4 NFSv3 DoS


Vulnerability Assessment Details

Linux 2.4 NFSv3 DoS

Vulnerability Assessment Summary
checks the presence of a DoS in the remote knfsd

Detailed Explanation for this Vulnerability Assessment

The remote host is running knfsd, a kernel NFS daemon.

There is a bug in this version which may permit a possible hacker to
disable the remote host by sending a malformed GETATTR request
with an invalid length field.

A possible hacker may exploit this flaw to prevent this host from working
correctly.

Solution : Upgrade to the latest version of Linux 2.4, or do not use knfsd.
Network Security Threat Level: High

Networks Security ID: 1160, 8298

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Renaud Deraison

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