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

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

                               ASB-2020.0007
               Security update for Microsoft Developer Tools
                              15 January 2020

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

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

Product:              Microsoft Developer Tools
Operating System:     Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Denial of Service               -- Remote/Unauthenticated      
Resolution:           Patch/Upgrade
CVE Names:            CVE-2020-0646 CVE-2020-0606 CVE-2020-0605
                      CVE-2020-0603 CVE-2020-0602 
Member content until: Friday, February 14 2020
Reference:            ASB-2020.0006

OVERVIEW

        Microsoft has released its monthly security patch update for the month 
        of January 2020.
        
        This update resolves 6 vulnerabilities across the following products: [1]
        
         .NET Core 3.0
         .NET Core 3.1
         ASP.NET Core 2.1
         ASP.NET Core 3.0
         ASP.NET Core 3.1
         Microsoft .NET Framework 3.0 Service Pack 2
         Microsoft .NET Framework 3.5
         Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
         Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2
         Microsoft .NET Framework 3.5 AND 4.7.2
         Microsoft .NET Framework 3.5 AND 4.8
         Microsoft .NET Framework 3.5.1
         Microsoft .NET Framework 4.5.2
         Microsoft .NET Framework 4.6
         Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
         Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
         Microsoft .NET Framework 4.8


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
        
         Details        Impact                   Severity
         CVE-2020-0602  Denial of Service        Important
         CVE-2020-0603  Remote Code Execution    Critical
         CVE-2020-0605  Remote Code Execution    Critical
         CVE-2020-0606  Remote Code Execution    Critical
         CVE-2020-0646  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]
        
        
         KB4532935, KB4535101, KB4535103, KB4535102, KB4535105
         KB4535104, KB4532933, KB4534271, KB4532938, KB4534306
         KB4534977, KB4534976, KB4532936, KB4534276, KB4534293
         KB4534979, KB4534978


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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=TKhf
-----END PGP SIGNATURE-----