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Category:   Device (Firewall)  >   WatchGuard Firebox Vendors:   WatchGuard
WatchGuard Firebox ICMP Processing Errors Let Remote Users Deny Service
SecurityTracker Alert ID:  1013698
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Apr 13 2005
Impact:   Denial of service via network
Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the WatchGuard Firebox firewalls in the processing of ICMP messages. A remote user can cause denial of service conditions.

A remote user can send specially crafted ICMP packets to the target firewall to cause denial of service conditions. TCP sessions which originate from or terminate on the firewall or which pass through the firewall can be reset by a remote user if the remote user can guess the source and destination address and port combinations for that session.

This type of vulnerability was described by Fernando Gont in the Internet Draft "ICMP attacks against TCP" (

Impact:   A remote user can cause TCP sessions passed through or processed by the device to be terminated.
Solution:   No solution was available at the time of this entry.

The vendor plans to issue fixes as part of previously scheduled software releases in the Q2-Q3 2005 time frame.

Vendor URL: (Links to External Site)
Cause:   State error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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