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                         AUSCERT Security Bulletin

                              ASB-2010.0246.2
                 Google have released an update for Chrome
                              8 December 2010

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

Product:              Google Chrome prior to 8.0.552.215
Operating System:     Windows
                      Linux variants
                      Mac OS X
Impact/Access:        Denial of Service -- Remote with User Interaction
                      Reduced Security  -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2010-4482 CVE-2010-4483 CVE-2010-4484
                      CVE-2010-4485 CVE-2010-4486 CVE-2010-4487
                      CVE-2010-4488 CVE-2010-4489 CVE-2010-4490
                      CVE-2010-4491 CVE-2010-4492 CVE-2010-4493
                      CVE-2010-4494  
Member content until: Wednesday, January  5 2011

Revision History:     December 8 2010: CVE references added
                      December 6 2010: Initial Release

OVERVIEW

        Google have released an update for Chrome, correcting several security 
        vulnerabilities.


IMPACT

        The vendor has provided the following information regarding these
        vulnerabilities:
        
        "* [17655] Low Possible pop-up blocker bypass. Credit to Google Chrome 
           Security Team (SkyLined).
         * [55745] Medium Cross-origin video theft with canvas. Credit to 
           Nirankush Panchbhai and Microsoft Vulnerability Research (MSVR).
         * [56237] Low Browser crash with HTML5 databases. Credit to Google 
           Chrome Security Team (Inferno).
         * [58319] Low Prevent excessive file dialogs, possibly leading to 
           browser crash. Credit to Cezary Tomczak (gosu.pl).
         * [$500] [59554] High Use after free in history handling. Credit to 
           Stefan Troger.
         * [Linux / Mac] [59817] Medium Make sure the dangerous file types 
           list is uptodate with the Windows platforms. Credit to Billy Rios 
           of the Google Security Team.
         * [61701] Low Browser crash with HTTP proxy authentication. Credit 
           to Mohammed Bouhlel.
         * [61653] Medium Out-of-bounds read regression in WebM video support. 
           Credit to Google Chrome Security Team (Chris Evans), based on 
           earlier testcases from Mozilla and Microsoft (MSVR).
         * [$1000] [62127] High Crash due to bad indexing with malformed video. 
           Credit to miaubiz.
         * [62168] Medium Possible browser memory corruption via malicious 
           privileged extension. Credit to kuzzcc.
         * [$1000] [62401] High Use after free with SVG animations. Credit to 
           S?awomir B?az.ek.
         * [$500] [63051] Medium Use after free in mouse dragging event 
           handling. Credit to kuzzcc.
         * [$1000] [63444] High Double free in XPath handling. Credit to Yang
           Dingning from NCNIPC, Graduate University of Chinese Academy of 
           Sciences." [1]


MITIGATION

        The latest version of Google Chrome (currently 8.0.552.215) can be
        downloaded from the vendor's website. [1]
                                                                                        
        The update can also be applied from within Google Chrome using 
        the built in update feature.


REFERENCES

        [1] Stable, Beta Channel Updates
            http://googlechromereleases.blogspot.com/2010/12/stable-beta-channel-updates.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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