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                         AUSCERT Security Bulletin

                               ASB-2009.1117
 Wireshark 1.2.3 released to fix mutiple Denial of service vulnerabilities
                              30 October 2009

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              WireShark
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Denial of Service -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2009-3549 CVE-2009-3550 CVE-2009-3551
Member content until: Sunday, November 29 2009

OVERVIEW

        Version 1.2.3 of Wireshark has been released to fix three (3) Denial
        of service vulnerabilities.


IMPACT

         The vendor has stated that this release fixes the following issues:
        
        o "The Paltalk dissector could crash on alignment-sensitive
           processors." [1]
        
        o "The DCERPC/NT dissector could crash." [1]
        
        o "The SMB dissector could crash." [1]


MITIGATION

        The vendor has made version 1.2.3 available for download on their
        website. [2]
                
        Other vendors which package Wireshark are expected to update shortly.


REFERENCES

        [1] Wireshark: wnpa-sec-2009-07
            http://www.wireshark.org/security/wnpa-sec-2009-07.html

        [2] Wireshark: Download
            http://www.wireshark.org/download.html

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

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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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