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                         AUSCERT Security Bulletin

                               ASB-2019.0335
                   Security Update for Development Tools
                             13 November 2019

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

Product:              ChakraCore
                      Microsoft Visual Studio
                      Open Enclave SDK
Operating System:     Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Increased Privileges            -- Remote with User Interaction
                      Access Confidential Data        -- Existing Account            
Resolution:           Patch/Upgrade
CVE Names:            CVE-2019-1428 CVE-2019-1427 CVE-2019-1426
                      CVE-2019-1425 CVE-2019-1370 
Member content until: Friday, December 13 2019
Reference:            ASB-2019.0308
                      ESB-2019.4170
                      ESB-2019.4163
                      ESB-2019.4106
                      ESB-2019.3999

OVERVIEW

        Microsoft has released its monthly security patch update for the month 
        of November 2019.
        
        This update resolves 5 vulnerabilities across the following products: 
        [1]
        
         ChakraCore
         Microsoft Visual Studio 2017 version 15.9
         Microsoft Visual Studio 2019 version 16.0
         Microsoft Visual Studio 2019 version 16.3
         Open Enclave SDK


IMPACT

        Microsoft has given the following details regarding these 
        vulnerabilities. [1]
        
         Details         Impact                   Severity
         CVE-2019-1370   Information Disclosure   Important
         CVE-2019-1425   Elevation of Privilege   Important
         CVE-2019-1426   Remote Code Execution    Critical
         CVE-2019-1427   Remote Code Execution    Critical
         CVE-2019-1428   Remote Code Execution    Critical


MITIGATION

        Microsoft recommends updating the software with the version made 
        available on the Microsoft Update Catalogue [1].


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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