Denial of Service on the BlackBerry Router

Article ID: KB04758

Type:   Security Advisory

First Published: 05-10-06

Last Modified: 09-02-2010


Product(s) Affected:

  • BlackBerry Enterprise Server for Novell GroupWise
  • BlackBerry Enterprise Server for Microsoft Exchange
  • BlackBerry Enterprise Server for IBM Domino
Collapse Products
ExpandAffected Software
  • BlackBerry® Enterprise Server 4.0 through 4.0 Service Pack 3 Hotfix 4
CollapseIssue Severity

Not assigned.


An issue in the BlackBerry Enterprise Server that is known to Research In Motion has been corrected in current releases of the BlackBerry Enterprise Server. An internal user sending malformed protocol packets could have caused a Denial of Service (DoS) for all BlackBerry Enterprise Server communication.


Complete the resolution actions documented in this advisory.
This article is in reference to US-CERT Advisory VU#392920.

The communication flow between the BlackBerry Enterprise Server and BlackBerry Router is disrupted.


Install BlackBerry Enterprise Server 4.0 Service Pack 4 or later.

CollapseAdditional Information

Visit for more information on BlackBerry security.

RIM thanks FX of Phenoelit  for reporting this issue to RIM, and working with RIM to protect its customers.
CollapseChange Log


Updates to article formatting. No technical content changed.


Update due to a system upgrade that did not affect article content.


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