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ASB-2012.0010 - [Win][UNIX/Linux] Google Chrome: Denial of service - Remote with user interaction

Date: 24 January 2012
References: ESB-2012.0257  ESB-2012.0266  ESB-2012.0705  ESB-2012.0874  ESB-2012.0898  

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===========================================================================
                         AUSCERT Security Bulletin

                               ASB-2012.0010
     A number of vulnerabilities have been identified in Google Chrome
                              24 January 2012

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

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

Product:              Google Chrome
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Denial of Service -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2011-3928 CVE-2011-3927 CVE-2011-3926
                      CVE-2011-3925 CVE-2011-3924 
Member content until: Thursday, February 23 2012

OVERVIEW

        A number of vulnerabilities have been identified in Google Chrome
        prior to version 16.0.912.77. [1]


IMPACT

        The vendor has provided the following details regarding these
        vulnerabilities:
        
        "# [$1000] [106484] High CVE-2011-3924: Use-after-free in DOM 
        selections. Credit to Arthur Gerkis.
        # [$3133.7] [107182] Critical CVE-2011-3925: Use-after-free in Safe 
        Browsing navigation. Credit to Chamal de Silva. *
        # [108461] High CVE-2011-3928: Use-after-free in DOM handling. Credit 
        to wushi of team509 reported through ZDI (ZDI-CAN-1415).
        # [$1000] [108605] High CVE-2011-3927: Uninitialized value in Skia. 
        Credit to miaubiz.
        # [$1000] [109556] High CVE-2011-3926: Heap-buffer-overflow in tree 
        builder. Credit to Arthur Gerkis." [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/2012/01/stable-channel-update_23.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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