-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
                         AUSCERT Security Bulletin

                               ASB-2021.0108
 Microsoft Patch Tuesday update for Microsoft Developer Tools for May 2021
                                12 May 2021

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

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

Product:          .NET 5.0
                  .NET Core 3.1
                  Microsoft Visual Studio 2019 Products
                  Visual Studio 2019 for Mac
                  Visual Studio Code
Operating System: Windows
                  UNIX variants (UNIX, Linux, OSX)
Impact/Access:    Execute Arbitrary Code/Commands -- Existing Account
                  Increased Privileges            -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2021-31214 CVE-2021-31213 CVE-2021-31211
                  CVE-2021-31204 CVE-2021-27068 

OVERVIEW

        Microsoft has released its monthly security patch update for the
        month of May 2021.
        This update resolves 5 vulnerabilities across the following products:
        [1]
         .NET 5.0
         .NET Core 3.1
         Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
         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 2019 for Mac version 8.9
         Visual Studio Code
         Visual Studio Code  Remote - Containers Extension


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
         Details         Impact                   Severity
         CVE-2021-27068  Remote Code Execution    Important
         CVE-2021-31204  Elevation of Privilege   Important
         CVE-2021-31211  Remote Code Execution    Important
         CVE-2021-31213  Remote Code Execution    Important
         CVE-2021-31214  Remote Code Execution    Important


MITIGATION

        Microsoft recommends updating the software to the latest available
        version available on the Microsoft Update Catalog. [1].


REFERENCES

        [1] Microsoft Security Update Guidance
            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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=BH/p
-----END PGP SIGNATURE-----