KLA11139
Multiple vulnerabilities in Microsoft Office

Multiple serious vulnerabilities have been found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions and privilege escalations.

Below is a complete list of vulnerabilities:

1. Multiple vulnerabilities related to an incorrect handing of objects in memory in Microsoft Office can be exploited remotely via sending a specially designed document to affected system to execute arbitrary code;
2. An improper user sessions management in Microsoft Project Server can be exploited remotely via a specially designed website to gain privileges;
3. An incorrect process of processing macros settings in Excel document can be exploited remotely to bypass security restrictions;

Technical details

Vulnerability (1) requires that a user open a file with an affected version of Microsoft Office.

Microsoft Word 2016 for Mac
Microsoft Excel  2016 Click-to-Run (C2R) for 32-bit editions
Microsoft Excel  2016 Click-to-Run (C2R) for 64-bit editions
Microsoft Excel 2007 Service Pack 3
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Excel 2013 RT Service Pack 1
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Microsoft Excel 2016 for Mac
Microsoft Excel Viewer 2007 Service Pack 3
Microsoft Office 2007 Service Pack 3
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft Office 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2016 (32-bit edition)
Microsoft Office 2016 (64-bit edition)
Microsoft Office Compatibility Pack Service Pack 3
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Office Word Viewer
Microsoft Project Server 2013 Service Pack 1
Microsoft SharePoint Enterprise Server 2016
Microsoft Word 2007 Service Pack 3
Microsoft Word 2010 Service Pack 2 (32-bit editions)
Microsoft Word 2010 Service Pack 2 (64-bit editions)
Microsoft Word 2013 RT Service Pack 1
Microsoft Word 2013 Service Pack 1 (32-bit editions)
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft Word 2016 (32-bit edition)
Microsoft Word 2016 (64-bit edition)

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