Windows Products: Multiple vulnerabilities

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                         ZMCIRT Vulnerability Bulletin

                             ZMC-2021.12.17.0800
                       Windows Products: Multiple vulnerabilities
                               17th December 2021

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Product:          Windows 7
                  Windows Server 2008
                  Windows Server 2008 R2
Operating System: Windows
Impact/Access:    Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                  Increased Privileges            -- Existing Account      
                  Access Confidential Data        -- Remote/Unauthenticated
Resolution:       Patch/Upgrade
CVE Names:        CVE-2021-43893 CVE-2021-43883 CVE-2021-43245
                  CVE-2021-43238 CVE-2021-43236 CVE-2021-43234
                  CVE-2021-43233 CVE-2021-43230 CVE-2021-43229
                  CVE-2021-43226 CVE-2021-43224 CVE-2021-43223
                  CVE-2021-43222 CVE-2021-43217 CVE-2021-43216
                  CVE-2021-43215 CVE-2021-43207 CVE-2021-41333
                  CVE-2021-40441  

OVERVIEW

        Microsoft has released its monthly security patch update for the
        month of December 2021.
        
        This update resolves 19 vulnerabilities across the following
        products: [1]
        
         Windows 7 for 32-bit Systems Service Pack 1
         Windows 7 for x64-based Systems Service Pack 1
         Windows Server 2008 R2 for x64-based Systems Service Pack 1
         Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
         Windows Server 2008 for 32-bit Systems Service Pack 2
         Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
         Windows Server 2008 for x64-based Systems Service Pack 2
         Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
        
         Details         Impact                   Severity
         CVE-2021-40441  Elevation of Privilege   Important
         CVE-2021-41333  Elevation of Privilege   Important
         CVE-2021-43207  Elevation of Privilege   Important
         CVE-2021-43215  Remote Code Execution    Critical
         CVE-2021-43216  Information Disclosure   Important
         CVE-2021-43217  Remote Code Execution    Critical
         CVE-2021-43222  Information Disclosure   Important
         CVE-2021-43223  Elevation of Privilege   Important
         CVE-2021-43224  Information Disclosure   Important
         CVE-2021-43226  Elevation of Privilege   Important
         CVE-2021-43229  Elevation of Privilege   Important
         CVE-2021-43230  Elevation of Privilege   Important
         CVE-2021-43233  Remote Code Execution    Critical
         CVE-2021-43234  Remote Code Execution    Important
         CVE-2021-43236  Information Disclosure   Important
         CVE-2021-43238  Elevation of Privilege   Important
         CVE-2021-43245  Elevation of Privilege   Important
         CVE-2021-43883  Elevation of Privilege   Important
         CVE-2021-43893  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 articles. [1].
        
         KB5008244, KB5008271, KB5008274, KB5008282


REFERENCES

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




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