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                         AUSCERT Security Bulletin

                               ASB-2014.0116
      Stable Google Chrome update addresses multiple vulnerabilities
                              8 October 2014

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

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

Product:              Google Chrome
Operating System:     Windows
                      Mac OS
                      Linux variants
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Access Privileged Data          -- Remote with User Interaction
                      Denial of Service               -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2014-3200 CVE-2014-3199 CVE-2014-3198
                      CVE-2014-3197 CVE-2014-3196 CVE-2014-3195
                      CVE-2014-3194 CVE-2014-3193 CVE-2014-3192
                      CVE-2014-3191 CVE-2014-3190 CVE-2014-3189
                      CVE-2014-3188  
Member content until: Friday, November  7 2014

OVERVIEW

        Google has released Chrome 38.0.2125.101, which includes 159 
        security fixes, 113 of which are minor fixes. [1]
        
        Google has identified one critical, six high, four medium and one 
        low risk vulnerabilities that have been fixed in this update. [1]


IMPACT

        Google has provided the following details regarding the major 
        vulnerabilities:
        
        "[416449] Critical CVE-2014-3188: A special thanks to Juri Aedla for
        a combination of V8 and IPC bugs that can lead to remote code 
        execution outside of the sandbox.
        
        [398384] High CVE-2014-3189: Out-of-bounds read in PDFium. Credit to
        cloudfuzzer.
        
        [400476] High CVE-2014-3190: Use-after-free in Events. Credit
        to cloudfuzzer.
        
        [402407] High CVE-2014-3191: Use-after-free in Rendering. 
        Credit to cloudfuzzer.
        
        [403276] High CVE-2014-3192: Use-after-free in DOM. Credit to
        cloudfuzzer.
        
        [399655] High CVE-2014-3193: Type confusion in Session 
        Management. Credit to miaubiz.
        
        [401115] High CVE-2014-3194: Use-after-free in Web Workers. 
        Credit to Collin Payne.
        
        [403409] Medium CVE-2014-3195: Information Leak in V8. Credit
        to Juri Aedla.
        
        [338538] Medium CVE-2014-3196: Permissions bypass in Windows
        Sandbox. Credit to James Forshaw.
        
        [396544] Medium CVE-2014-3197: Information Leak in XSS 
        Auditor. Credit to Takeshi Terada.
        
        [415307] Medium CVE-2014-3198: Out-of-bounds read in PDFium.
        Credit to Atte Kettunen of OUSPG.
        
        [395411] Low CVE-2014-3199: Release Assert in V8 bindings. 
        Credit to Collin Payne." [1]
        
        Google also identified vulnerabilities discovered by its internal 
        security team.
        
        "[420899] CVE-2014-3200: Various fixes from internal audits, fuzzing
        and other initiatives (Chrome 38)." [1]


MITIGATION

        Users are advised to apply the update to overcome these 
        vulnerabilities. [1]


REFERENCES

        [1] Stable Channel Update
            http://googlechromereleases.blogspot.com.au/2014/10/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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