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                         AUSCERT Security Bulletin

                               ASB-2011.0083
                      Mozilla Firefox security update
                             28 September 2011

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

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

Product:              Firefox 3.6.22 and prior
                      Firefox 6.0.2 and prior
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Access Confidential Data -- Remote with User Interaction
                      Denial of Service        -- Remote with User Interaction
Resolution:           Patch/Upgrade
Member content until: Friday, October 28 2011

OVERVIEW

        Mozilla has released an update to Firefox correcting several
        security issues. [1][2]


IMPACT

        * WebGL cross-domain image theft vulnerability [3]
        * WebGL allows access to uninitialised graphics memory [4]
        * A stack overflow occurs when loading some plugins [5]
        * A crash can be caused by a textarea tag [6]
        
        More information should be available soon.[7][8]


MITIGATION

        It is recommended that users update to the latest version as
        soon as possible.


REFERENCES

        [1] Release Notes
            https://www.mozilla.org/en-US/firefox/7.0/releasenotes/

        [2] Release Notes
            https://www.mozilla.org/en-US/firefox/3.6.23/releasenotes/

        [3] Bug 655987
            https://bugzilla.mozilla.org/show_bug.cgi?id=655987

        [4] Bug 659349
            https://bugzilla.mozilla.org/show_bug.cgi?id=659349

        [5] Bug 664974
            https://bugzilla.mozilla.org/show_bug.cgi?id=664974

        [6] Bug 669767
            https://bugzilla.mozilla.org/show_bug.cgi?id=669767

        [7] Security Advisories for Firefox
            http://www.mozilla.org/security/known-vulnerabilities/firefox.html#firefox7

        [8] Security Advisories for Firefox 3.6
            http://www.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.23

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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