Microsoft Security Bulletin MS16-099 - Critical

Security Update for Microsoft Office (3177451)

Published: August 9, 2016 | Updated: August 22, 2016

Version: 2.0

Executive Summary

This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

For more information, see the Affected Software and Vulnerability Severity Ratings section.

The security update addresses the vulnerabilities by correcting how affected versions of Office and Office components handle objects in memory. For more information about the vulnerabilities, see the Vulnerability Information section.

For more information about this update, see Microsoft Knowledge Base Article 3177451.

Affected Software and Vulnerability Severity Ratings

The following software versions or editions are affected. Versions or editions that are not listed are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, see Microsoft Support Lifecycle.

The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the August bulletin summary.

Microsoft Office Software

Affected Software Microsoft Office Memory Corruption Vulnerability – CVE-2016-3313 Microsoft OneNote Information Disclosure Vulnerability – CVE-2016-3315 Microsoft Office Memory Corruption Vulnerability – CVE-2016-3316 Microsoft Office Memory Corruption Vulnerability – CVE-2016-3317 Graphics Component Memory Corruption Vulnerability – CVE-2016-3318 Updates Replaced*
Microsoft Office 2007
Microsoft Office 2007 Service Pack 3
(3114442)
Not applicable Not applicable Not applicable Not applicable Important Remote Code Execution 3085620 in MS15-099
Microsoft Office 2007 Service Pack 3
(3114893)
Important Remote Code Execution Not applicable Not applicable Not applicable Not applicable 3114742 in MS16-015
Microsoft OneNote 2007 Service Pack 3
(3114456)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 2889915 in MS15-116
Microsoft Word 2007 Service Pack 3
(3115465)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3115311 in MS16-088
Microsoft Office 2010
Microsoft Office 2010 Service Pack 2 (32-bit editions)
(3114400)
Not applicable Not applicable Not applicable Not applicable Important Remote Code Execution 3085560 in MS15-099
Microsoft Office 2010 Service Pack 2 (64-bit editions)
(3114400)
Not applicable Not applicable Not applicable Not applicable Important Remote Code Execution 3085560 in MS15-099
Microsoft Office 2010 Service Pack 2 (32-bit editions)
(3114869)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3114553 in MS16-004
Microsoft Office 2010 Service Pack 2 (64-bit editions)
(3114869)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3114553 in MS16-004
Microsoft Office 2010 Service Pack 2 (32-bit editions)
(3115468)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3115315 in MS16-088
Microsoft Office 2010 Service Pack 2 (64-bit editions)
(3115468)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3115315 in MS16-088
Microsoft OneNote 2010 Service Pack 2 (32-bit editions)
(3114885)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3054978 in MS15-116
Microsoft OneNote 2010 Service Pack 2 (64-bit editions)
(3114885)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3054978 in MS15-116
Microsoft Word 2010 Service Pack 2 (32-bit editions)
(3115471)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3115317 in MS16-088
Microsoft Word 2010 Service Pack 2 (64-bit editions)
(3115471)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3115317 in MS16-088
Microsoft Office 2013
Microsoft Office 2013 Service Pack 1 (32-bit editions)
(3114340)
Not applicable Not applicable Not applicable Not applicable Important Remote Code Execution 3085572 in MS15-099
Microsoft Office 2013 Service Pack 1 (64-bit editions)
(3114340)
Not applicable Not applicable Not applicable Not applicable Important Remote Code Execution 3085572 in MS15-099
Microsoft Office 2013 Service Pack 1 (32-bit editions)
(3115427)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3115016 in MS16-054
Microsoft Office 2013 Service Pack 1 (64-bit editions)
(3115427)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3115016 in MS16-054
Microsoft OneNote 2013 Service Pack 1 (32-bit editions)
(3115256)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3101371 in MS15-116
Microsoft OneNote 2013 Service Pack 1 (64-bit editions)
(3115256)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3101371 in MS15-116
Microsoft Word 2013 Service Pack 1 (32-bit editions)
(3115449)
Not applicable Not applicable Critical
Remote Code Execution
Not applicable Not applicable 3115292 in MS16-088
Microsoft Word 2013 Service Pack 1 (64-bit editions)
(3115449)
Not applicable Not applicable Critical
Remote Code Execution
Not applicable Not applicable 3115292 in MS16-088
Microsoft Office 2013 RT
Microsoft Office 2013 RT Service Pack 1[1] (3114340) Not applicable Not applicable Not applicable Not applicable Important Remote Code Execution 3085572 in MS15-099
Microsoft Office 2013 RT Service Pack 1[1] (3115427) Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3115016 in MS16-054
Microsoft OneNote 2013 RT Service Pack 1[1] (3115256) Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3101371 in MS15-116
Microsoft Word 2013 RT Service Pack 1[1](3115449) Not applicable Not applicable Critical
Remote Code Execution
Not applicable Not applicable 3115292 in MS16-088
Microsoft Office 2016
Microsoft Office 2016 (32-bit edition)
(3115415)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3115144 in MS16-070
Microsoft Office 2016 (64-bit edition)
(3115415)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3115144 in MS16-070
Microsoft OneNote 2016 (32-bit edition)
(3115419)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3114862 in MS16-070
Microsoft OneNote 2016 (64-bit edition)
(3115419)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable 3114862 in MS16-070
Microsoft Word 2016 (32-bit edition)
(3115439)
Not applicable Not applicable Critical
Remote Code Execution
Not applicable Not applicable 3115301 in MS16-088
Microsoft Word 2016 (64-bit edition)
(3115439)
Not applicable Not applicable Critical
Remote Code Execution
Not applicable Not applicable 3115301 in MS16-088
Microsoft Office for Mac 2011
Microsoft Word for Mac 2011
(3179162)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3170463 in MS16-088
Microsoft Office 2016 for Mac
Microsoft OneNote 2016 for Mac
(3179163)
Not applicable Important Information Disclosure Not applicable Not applicable Not applicable None
Microsoft Word 2016 for Mac
(3179163)
Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Not applicable 3170460 in MS16-088
Other Office Software
Microsoft Word Viewer
(3115479)
Important
Remote Code Execution
Not applicable Not applicable Not applicable Not applicable 3115395 in MS16-088
Microsoft Word Viewer
(3115480)
Not applicable Not applicable Not applicable Important Remote Code Execution Not applicable 3115393 in MS16-088

[1]This update is available via Windows Update.

*The Updates Replaced column shows only the latest update in a chain of superseded updates. For a comprehensive list of updates replaced, go to the Microsoft Update Catalog, search for the update number, and then view update details (updates replaced information is on the Package Details tab).

Update FAQ

Does this release contain any additional security-related changes to functionality?
Yes. In addition to the security updates that address the vulnerabilities described in this bulletin, Microsoft is releasing the following updates to add a security feature enhancement that provides additional information to users when Outlook makes a network connection through a proxy server.

Affected Software
Microsoft Outlook 2007 Service Pack 3
(3114981)
Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
(3115474)
Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
(3115474)
Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
(3115452)
Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
(3115452)
Microsoft Outlook 2016 (32-bit edition)
(3115440)
Microsoft Outlook 2016 (64-bit edition)
(3115440)

I have Microsoft Word 2010 installed. Why am I not being offered the 3115468 update?
The 3115468 update only applies to systems running specific configurations of Microsoft Office 2010. Some configurations will not be offered the update.

I am being offered this update for software that is not specifically indicated as being affected in the Affected Software and Vulnerability Severity Ratings table. Why am I being offered this update?
When updates address vulnerable code that exists in a component that is shared between multiple Microsoft Office products or shared between multiple versions of the same Microsoft Office product, the update is considered to be applicable to all supported products and versions that contain the vulnerable component.

For example, when an update applies to Microsoft Office 2007 products, only Microsoft Office 2007 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2007, Microsoft Excel 2007, Microsoft Visio 2007, Microsoft Compatibility Pack, Microsoft Excel Viewer, or any other Microsoft Office 2007 product that is not specifically listed in the Affected Software table. Furthermore, when an update applies to Microsoft Office 2010 products, only Microsoft Office 2010 may be specifically listed in the Affected Software table. However, the update could apply to Microsoft Word 2010, Microsoft Excel 2010, Microsoft Visio 2010, Microsoft Visio Viewer, or any other Microsoft Office 2010 product that is not specifically listed in the Affected Software table.

For more information on this behavior and recommended actions, see Microsoft Knowledge Base Article 830335. For a list of Microsoft Office products that an update may apply to, refer to the Microsoft Knowledge Base Article associated with the specific update.

Vulnerability Information

Microsoft OneNote Information Disclosure Vulnerability – CVE-2016-3315

An information disclosure vulnerability exists when Microsoft OneNote improperly discloses its memory contents. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data. To exploit the vulnerability, an attacker could create a specially crafted OneNote file and convince a victim to open it. For an attack to be successful, the attacker must know the specific location of OneNote objects in memory.

The update addresses the vulnerability by changing the way certain OneNote functions handle objects in memory. The following table contains links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title CVE number Publicly disclosed Exploited
Microsoft OneNote Information Disclosure Vulnerability CVE-2016-3315 No No

Mitigating Factors

Microsoft has not identified any mitigating factors for this vulnerability.

Workarounds

Microsoft has not identified any workarounds for this vulnerability.

Multiple Microsoft Office Memory Corruption Vulnerabilities

Multiple remote code execution vulnerabilities exist in Microsoft Office software when the Office software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Exploitation of the vulnerabilities requires that a user open a specially crafted file with an affected version of Microsoft Office software. In an email attack scenario an attacker could exploit the vulnerabilities by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerabilities. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince them to open the specially crafted file.

Note that where the severity is indicated as Critical in the Affected Software and Vulnerability Severity Ratings table, the Preview Pane is an attack vector for CVE-2016-3316. The security update addresses the vulnerabilities by correcting how Office handles objects in memory.

The security update addresses the vulnerabilities by correcting how Microsoft Office handles objects in memory. The following table contains links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title CVE number Publicly disclosed Exploited
Microsoft Office Memory Corruption Vulnerability CVE-2016-3313 No No
Microsoft Office Memory Corruption Vulnerability CVE-2016-3316 No No
Microsoft Office Memory Corruption Vulnerability CVE-2016-3317 No No
Graphics Component Memory Corruption Vulnerability CVE-2016-3318 No No

Mitigating Factors

Microsoft has not identified any mitigating factors for these vulnerabilities.

Workarounds

Microsoft has not identified any workarounds for these vulnerabilities.

Security Update Deployment

For Security Update Deployment information, see the Microsoft Knowledge Base article referenced here in the Executive Summary.

Acknowledgments

Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgments for more information.

Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions

  • V1.0 (August 9, 2016): Bulletin published.
  • V1.1 (August 11, 2016): Bulletin revised to correct the Updates Replaced entries for Microsoft Word Viewer updates 3115479 and 3115480. This is an informational change only. Customers who have already successfully updated their systems do not need to take any action.
  • V2.0 (August 22, 2016): Bulletin revised to announce the availability of the 14.6.7 update for Microsoft Office for Mac 2011 (3179162) and the 15.25 update for Microsoft Office 2016 for Mac (3179163). Customers running affected Mac software should install the appropriate update for their product to be protected from the vulnerabilities discussed in this bulletin. Customers running other Microsoft Office software do not need to take any action. See Microsoft Knowledge Base Article 3179162 and Microsoft Knowledge Base Article 3179163 for more information and download links.

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