Microsoft Developer Tools: Multiple vulnerabilities

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                         ZMCIRT Vulnerability Bulletin

                             ZMC-2021.11.11.0800
                       Microsoft Developer Tools: Multiple vulnerabilities
                               11th November 2021

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Product:          Microsoft Visual Studio
                  Visual Studio Code
Operating System: Windows
Impact/Access:    Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                  Increased Privileges            -- Existing Account      
Resolution:       Patch/Upgrade
CVE Names:        CVE-2021-42322 CVE-2021-42319 CVE-2021-42277
                  CVE-2021-3711  

OVERVIEW

        Microsoft has released its monthly security patch update for the
        month of November 2021.
        
        This update resolves 4 vulnerabilities across the following products:
        [1]
        
         Microsoft Visual Studio 2015 Update 3
         Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
         Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)
         Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)
         Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)
         Visual Studio Code


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
        
         Details         Impact                   Severity
         CVE-2021-3711   Remote Code Execution    Critical
         CVE-2021-42277  Elevation of Privilege   Important
         CVE-2021-42319  Elevation of Privilege   Important
         CVE-2021-42322  Elevation of Privilege   Important


MITIGATION

        Microsoft recommends updating the software with the version made
        available on the Microsoft Update Catalogue for the following
        Knowledge Base article. [1].
        
         KB5007275


REFERENCES

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




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