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                         AUSCERT Security Bulletin

                               ASB-2011.0002
                 Vulnerability in pidgin may cause a crash
                              10 January 2011

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

Product:              pidgin 2.7.8 and prior
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Denial of Service -- Remote/Unauthenticated
Resolution:           Patch/Upgrade
CVE Names:            CVE-2010-4528  
Member content until: Wednesday, February  9 2011

OVERVIEW

        A new version of pidgin, a multi-protocol messenging client, has been 
        released.


IMPACT

        One security issue has been corrected which affects the MSN protocol
        handler of pidgin. 
        
        * CVE-2010-4528
          Pidgin may "crash when receiving short packets related to P2Pv2
          messages." [1]


MITIGATION

        Upgrade to pidgin 2.7.9 to correct this issue. We expect vendors
        who include this in their repository to include this update soon.


REFERENCES

        [1] ChangeLog: Pidgin and Finch
            http://developer.pidgin.im/wiki/ChangeLog

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.

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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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