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                         AUSCERT Security Bulletin

                              ASB-2009.1019.2
                           New update for Chrome
                               22 July 2009

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

Product:              Chrome
Operating System:     Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Denial of Service               -- Remote with User Interaction
Resolution:           Upgrade
CVE Names:            CVE-2009-2556 CVE-2009-2555 
Member content until: Wednesday, August 19 2009

Revision History:     July 22 2009: Added CVE References
                      July 20 2009: Initial Release

OVERVIEW

        A heap overflow and a memory corruption vulnerability has been 
        identified in Google Chrome prior to version 2.0.172.37. [1]


IMPACT

        A denial of service or code execution in the Google Chrome sandbox 
        could result if a victim using a vulnerable browser were to visit a 
        malicious web page. [1]
        
        The browser process will allocate very large memory buffers if a tab
        process were compromised, resulting in a browser crash and potential
        code execution. [1]


MITIGATION

        Google has made version 2.0.172.37 available for download from their 
        website. [2]


REFERENCES

        [1] Google Chrome Releases
            http://googlechromereleases.blogspot.com/2009/07/stable-beta-update-bug-fixes.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

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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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