ASB-2018.0297 - [Win][Linux][Mac] Microsoft developer tools: Multiple vulnerabilities 2018-12-12

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                         AUSCERT Security Bulletin

                               ASB-2018.0297
            Microsoft Developer Tools updates for December 2018
                             12 December 2018

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

Product:              .NET Core
                      Azure App Service
                      ChakraCore
                      .NET Framework
                      Visual Studio
                      PowerShell Core
                      Team Foundation Server
Operating System:     Windows
                      Linux variants
                      Mac OS
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Increased Privileges            -- Existing Account            
                      Denial of Service               -- Remote/Unauthenticated      
Resolution:           Patch/Upgrade
CVE Names:            CVE-2018-8629 CVE-2018-8624 CVE-2018-8618
                      CVE-2018-8617 CVE-2018-8599 CVE-2018-8583
                      CVE-2018-8540 CVE-2018-8517 
Member content until: Friday, January 11 2019

OVERVIEW

        Microsoft has released its monthly security patch update for the month of December 2018.
        
        This update resolves 8 vulnerabilities across the following products: [1]
        
         ChakraCore
         Microsoft .NET Framework 3.5
         Microsoft .NET Framework 3.5.1
         Microsoft .NET Framework 4.5.2
         Microsoft .NET Framework 4.6
         Microsoft .NET Framework 4.6.2
         Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
         Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2
         Microsoft .NET Framework 4.7.1/4.7.2
         Microsoft .NET Framework 4.7.2
         Microsoft .NET Framework 4.7/4.7.1/4.7.2
         Microsoft Visual Studio 2015 Update 3
         Microsoft Visual Studio 2017
         Microsoft Visual Studio 2017 version 15.9


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
        
         Details         Impact                   Severity
         CVE-2018-8517  Denial of Service        Important
         CVE-2018-8540  Remote Code Execution    Critical
         CVE-2018-8583  Remote Code Execution    Critical
         CVE-2018-8599  Elevation of Privilege   Important
         CVE-2018-8617  Remote Code Execution    Critical
         CVE-2018-8618  Remote Code Execution    Critical
         CVE-2018-8624  Remote Code Execution    Critical
         CVE-2018-8629  Remote Code Execution    Critical


MITIGATION

        Microsoft recommends updating the software with the version made available on the Microsoft Update Catalogue for the following Knowledge Base articles. [1].
        
        
         KB4470637, KB4470493, KB4470492, KB4470491, KB4470630
         KB4470639, KB4470638, KB4471323, KB4471321, KB4471327
         KB4471324, KB4471329, KB4470640, KB4470641, KB4470500
         KB4470502, KB4470622, KB4470623, KB4470602, KB4470629
         KB4470600, KB4470601, KB4470499, KB4470498, KB4469516


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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