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                         AUSCERT Security Bulletin

                               ASB-2011.0008
       Wireshark 1.4.3 released correcting multiple vulnerabilities
                              2 February 2011

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

Product:              Wireshark
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Denial of Service               -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2011-0444 CVE-2010-4538 CVE-2011-0445
Member content until: Friday, March  4 2011

OVERVIEW

        A number of vulnerabilities have been identified in Wireshark prior to
        version 1.4.3. [1]


IMPACT

        The MAC-LTE dissector and ENTTEC dissector have a buffer overflow
        vulnerability that could lead to code execution. [1]
        
        Also a problem in the BER dissector could cause the application
        to crash. [1]


MITIGATION

        Wireshark 1.4.3 has been released to correct these vulnetabilities. [2]
        
        They also provide the following workarounds: [1]
        
        "Disable the ENTTEC and MAC-LTE dissectors (there is no workaround for the BER issue):
        Select Analyze?Enabled Protocols... from the menu.
        Make sure "ENTTEC" and "MAC-LTE" are un-checked.
        Click "Save", then click "OK"." 


REFERENCES

        [1] MAC-LTE, ENTTEC, and ASN.1 BER vulnerabilities in Wireshark version
            1.4.0
            http://www.wireshark.org/security/wnpa-sec-2011-02.html

        [2] Get Wireshark
            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.

===========================================================================
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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