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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 >> Firewall/1 UDP port 0 DoS

Vulnerability Assessment Details

Firewall/1 UDP port 0 DoS

Vulnerability Assessment Summary
Crashes the remote host by sending a UDP packet going to port 0

Detailed Explanation for this Vulnerability Assessment
It was possible to
crash either the remote host or the firewall
in between us and the remote host by sending
an UDP packet going to port 0.

This flaw may permit a possible hacker to shut down
your network.

Solution : contact your firewall vendor if
it was the firewall which crashed, or filter
incoming UDP traffic if the remote host crashed.

Network Security Threat Level: High

Networks Security ID: 576

Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Renaud Deraison

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