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AA-2008.0004                  AUSCERT Advisory

                                [Appliance]
     Denial of Service vulnerability in Ingate Firewall and SIParator
                              16 January 2008
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        AusCERT Advisory Summary
        ------------------------

Product:              Ingate Firewall 
                      Ingate SIParator
Operating System:     Network Appliance
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-0263
Member content until: Friday, February 08 2008

Revision History:     January 16 2008: Added CVE Reference
                      January 11 2008: Initial Release

OVERVIEW:

        A Denial of Service (Dos) vulnerability has been reported in the 
        Ingate Firewall and SIParator products.


IMPACT:

        Ingate has released the following information regarding this 
        vulnerability:

        "SIP media ports were sometimes not reused. In certain scenarios 
        involving call hold and/or send-only streams, the SIP module could 
        forget to reuse the media port when the call ended. This could 
        eventually lead to exhaustion of the port pool, so that new calls 
        could not be set up." [1]


MITIGATION:

        To address this vulnerability Ingate has released updates to these
        products which are available from the vendor's website. [2]


REFERENCES:

        [1] Release notice for Ingate Firewall and Ingate SIParator 4.6.1
            http://www.ingate.com/relnote-461.php

        [2] Ingate: Download Upgrades
            http://www.ingate.com/upgrades.php



AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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