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                         AUSCERT Security Bulletin

                               ASB-2017.0158
                  Security updates for Internet Explorer
                              11 October 2017

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

Product:              Microsoft 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-2017-11822 CVE-2017-11813 CVE-2017-11810
                      CVE-2017-11793 CVE-2017-11790 
Member content until: Friday, November 10 2017

OVERVIEW

        Microsoft has released its monthly security patch update for the month 
        of October 2017. [1]
        
        This update resolves 5 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-2017-11790  Information Disclosure   Important
         CVE-2017-11793  Remote Code Execution    Critical
         CVE-2017-11810  Remote Code Execution    Critical
         CVE-2017-11813  Remote Code Execution    Critical
         CVE-2017-11822  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]
        
        
         KB4041681, KB4041691, KB4041690, KB4041693, KB4041676
         KB4041689, KB4042895, KB4040685


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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