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                         AUSCERT Security Bulletin

                              ASB-2009.1085.2
                         Google Chrome 3 Released
                             21 September 2009

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

Product:              Google Chrome
Operating System:     Windows
Impact/Access:        Cross-site Scripting -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2009-3263 CVE-2009-3264 
Member content until: Friday, October 16 2009

Revision History:     September 21 2009: Added CVE References
                      September 16 2009: Initial Release

OVERVIEW

        Google has released version 3 of the Google Chrome web browser which
        fixes two (2) security issues.


IMPACT

        Google has released the following information on the vulnerabilities
        that were fixed in this release:
        
        o "Previously, we rendered RSS and Atom feeds as XML.  Because most
           other browsers render these documents with dedicated feed
           previewers, some web sites do not sanitize their feeds for active
           content, such as JavaScript.  In these cases, an attacker might be
           able to inject JavaScript into a target web site." [1]
        
        o "The getSVGDocument method was lacking an access check, resulting
           in a cross-origin JavaScript capability leak.  A malicious web site
           operator could use the leaked capability to inject JavaScript into a
           target web site hosting an SVG document, bypassing the same-origin
           policy. [1]


MITIGATION

        The latest version of Google Chrome can be downloaded from the vendor's
        website [2]


REFERENCES

        [1] Stable Channel Update
            http://googlechromereleases.blogspot.com/2009/09/stable-channel-update.html

        [2] Google Chrome
            http://www.google.com/chrome

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

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