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                         AUSCERT Security Bulletin

                               ASB-2011.0084
     A number of vulnerabilities have been identified in Google Chrome
                              5 October 2011

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

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

Product:              Google Chrome
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Denial of Service               -- Remote with User Interaction
                      Reduced Security                -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2011-3873 CVE-2011-2881 CVE-2011-2880
                      CVE-2011-2879 CVE-2011-2878 CVE-2011-2877
                      CVE-2011-2876  
Member content until: Friday, November  4 2011

OVERVIEW

        A number of vulnerabilities have been identified in Google Chrome
        prior to version 14.0.835.202. [1]


IMPACT

        The vendor has provided the following details regarding these
        vulnerabilities:
        
        "[$1000] [93788] High CVE-2011-2876: Use-after-free in text line box handling. Credit to miaubiz.
        [$1000] [95072] High CVE-2011-2877: Stale font in SVG text handling. Credit to miaubiz.
        [$2000] [95671] High CVE-2011-2878: Inappropriate cross-origin access to the window prototype. Credit to Sergey Glazunov.
        [96150] High CVE-2011-2879: Lifetime and threading issues in audio node handling. Credit to Google Chrome Security Team (Inferno).
        [$4500] [97451] [97520] [97615] High CVE-2011-2880: Use-after-free in the v8 bindings. Credit to Sergey Glazunov.
        [$1500] [97784] High CVE-2011-2881: Memory corruption with v8 hidden objects. Credit to Sergey Glazunov.
        [98089] Critical CVE-2011-3873: Memory corruption in shader translator. Credit to Zhenyao Mo of the Chromium development community." [1]


MITIGATION

        The vendor recommends upgrading to the latest version of Google Chrome
        to correct these issues. [1]


REFERENCES

        [1] Stable Channel Update
            http://googlechromereleases.blogspot.com/2011/10/stable-channel-update.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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