KLA12316
Multiple vulnerabilities in Microsoft Office

Updated: 10/14/2021
Detect date
?
10/12/2021
Severity
?
High
Description

Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to obtain sensitive information, execute arbitrary code, spoof user interface.

Below is a complete list of vulnerabilities:

  1. An information disclosure vulnerability in Rich Text Edit Control can be exploited remotely to obtain sensitive information.
  2. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
  3. A remote code execution vulnerability in Microsoft Office Visio can be exploited remotely to execute arbitrary code.
  4. A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface.
  5. A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code.
  6. An information disclosure vulnerability in Microsoft SharePoint Server can be exploited remotely to obtain sensitive information.
  7. A remote code execution vulnerability in Microsoft Word can be exploited remotely to execute arbitrary code.
  8. An information disclosure vulnerability in Microsoft Excel can be exploited remotely to obtain sensitive information.
Affected products

Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Office LTSC for Mac 2021
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2013 RT Service Pack 1
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2019 for Mac
Microsoft Office 2013 Service Pack 1 (64-bit editions)
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2013 RT Service Pack 1
Microsoft Office 2016 (64-bit edition)
Microsoft Office 2016 (32-bit edition)
Microsoft SharePoint Enterprise Server 2016
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft SharePoint Server 2019
Microsoft Office Online Server
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Excel 2016 (64-bit edition)

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Original advisories

CVE-2021-40454
CVE-2021-41344
CVE-2021-40481
CVE-2021-40483
CVE-2021-40473
CVE-2021-40487
CVE-2021-40482
CVE-2021-40480
CVE-2021-40486
CVE-2021-40485
CVE-2021-40479
CVE-2021-40471
CVE-2021-40474
CVE-2021-40484
CVE-2021-40472

Impacts
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ACE 
[?]

OSI 
[?]

SUI 
[?]
Related products
Microsoft Office
Microsoft Excel
Microsoft SharePoint
KB list

5001960
5001985
5002029
5002043
5002004
4461476
5002036
5001924
5002027
5002042
5001982
5002006
5002030
4493202
5002028
4018332

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