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                         AUSCERT Security Bulletin

                               ASB-2017.0195
             Microsoft Security Updates for Internet Explorer
                             15 November 2017

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

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

Product:              Internet Explorer
Operating System:     Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Access Confidential Data        -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2017-11869 CVE-2017-11858 CVE-2017-11856
                      CVE-2017-11855 CVE-2017-11848 CVE-2017-11846
                      CVE-2017-11843 CVE-2017-11838 CVE-2017-11837
                      CVE-2017-11834 CVE-2017-11827 CVE-2017-11791
Member content until: Friday, December 15 2017
Reference:            https://portal.msrc.microsoft.com/en-us/security-guidance

OVERVIEW

        Microsoft has released its monthly security patch update for the month of
        November 2017. [1]
        
        This update resolves 12 vulnerabilities across the following products: 
        
         Internet Explorer 10
         Internet Explorer 11
         Internet Explorer 9


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
        
         Details         Impact                   Severity
         CVE-2017-11791  Information Disclosure   Important
         CVE-2017-11827  Remote Code Execution    Important
         CVE-2017-11834  Information Disclosure   Important
         CVE-2017-11837  Remote Code Execution    Critical
         CVE-2017-11838  Remote Code Execution    Critical
         CVE-2017-11843  Remote Code Execution    Critical
         CVE-2017-11846  Remote Code Execution    Critical
         CVE-2017-11848  Information Disclosure   Moderate
         CVE-2017-11855  Remote Code Execution    Critical
         CVE-2017-11856  Remote Code Execution    Critical
         CVE-2017-11858  Remote Code Execution    Critical
         CVE-2017-11869  Remote Code Execution    Critical


MITIGATION

        Microsoft recommends updating the software with the version
        made available on the Microsoft Update Cataloge for the following
        Knowledge Base articles. [1]
        
        
         KB4048955, KB4048954, KB4048957, KB4048956, KB4048953
         KB4048952, KB4042895, KB4048959, KB4048958, KB4047206


REFERENCES

        [1] Security Update Guide
            https://portal.msrc.microsoft.com/en-us/security-guidance

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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