WatchGuard Firebox DVCP denial of service

firebox-dvcp-dos (9509) The risk level is classified as MediumMedium Risk


WatchGuard Firebox is vulnerable to a denial of service attack. A remote attacker could send a malformed packet to the Dynamic VPN Configuration Protocol (DVCP) listener service on TCP port 4110 to cause the DVCP service to crash. The firewall must be rebooted for the service to regain normal functionality.


Denial of Service


Upgrade to the latest version of WatchGuard Firebox firmware (6.0.b1140 or later), available from the WatchGuard LiveSecurity Service Web site. See References.


Platforms Affected:

  • WatchGuard WatchGuard Firebox 5.x.x


Jul 09, 2002

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