Microsoft Security Bulletin MS13-086 - Important
Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (2885084)
This security update resolves two privately reported vulnerabilities in Microsoft Office. The vulnerabilities could allow remote code execution if a specially crafted file is opened in an affected version of Microsoft Word or other affected Microsoft Office software. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. 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.
This security update is rated Important for supported editions of Microsoft Word 2003, Microsoft Word 2007, and Microsoft Office Compatibility Pack. For more information, see the subsection, Affected and Non-Affected Software, in this section.
The security update addresses the vulnerabilities by correcting the way that Microsoft Word parses specially crafted files and by correcting the manner in which the XML parser used by Word resolves external entities within a specially crafted file. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.
Recommendation. Customers can configure automatic updating to check online for updates from Microsoft Update by using the Microsoft Update service. Customers who have automatic updating enabled and configured to check online for updates from Microsoft Update typically will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates from Microsoft Update and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.
For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update at the earliest opportunity using update management software, or by checking for updates using the Microsoft Update service.
See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.
|Knowledge Base Article||2885084|
The following software has been tested to determine which versions or editions are affected. Other versions or editions 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.
|Microsoft Office Suite and Other Office Software||Component||Maximum Security Impact||Aggregate Severity Rating||Updates Replaced|
|Microsoft Office 2003|
|Microsoft Office 2003 Service Pack 3||Microsoft Word 2003 Service Pack 3 |
|Remote Code Execution||Important||2817682 in MS13-072|
|Microsoft Office 2007|
|Microsoft Office 2007 Service Pack 3||Microsoft Word 2007 Service Pack 3 |
|Remote Code Execution||Important||2767773 in MS13-072|
|Other Office Software|
|Microsoft Office Compatibility Pack Service Pack 3 |
|Not applicable||Remote Code Execution||Important||2760823 in MS13-072|
|Office and Other Software|
|Microsoft Word 2010 Service Pack 1 (32-bit editions)|
|Microsoft Word 2010 Service Pack 2 (32-bit editions)|
|Microsoft Word 2010 Service Pack 1 (64-bit editions)|
|Microsoft Word 2010 Service Pack 2 (64-bit editions)|
|Microsoft Word 2013 (32-bit editions)|
|Microsoft Word 2013 (64-bit editions)|
|Microsoft Word 2013 RT|
|Microsoft Office for Mac 2011|
|Microsoft Word Viewer|
Microsoft thanks the following for working with us to help protect customers:
- Yuhong Bao for reporting the Memory Corruption Vulnerability (CVE-2013-3891)
- Mateusz Jurczyk, Ivan Fratric, and Ben Hawkes of the Google Security Team for reporting the Memory Corruption Vulnerability (CVE-2013-3892)
To improve security protections for customers, Microsoft provides vulnerability information to major security software providers in advance of each monthly security update release. Security software providers can then use this vulnerability information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please go to the active protections websites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.
How to obtain help and support for this security update
- Help installing updates: Support for Microsoft Update
- Security solutions for IT professionals: TechNet Security Troubleshooting and Support
- Help protect your computer that is running Windows from viruses and malware: Virus Solution and Security Center
- Local support according to your country: International Support
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.
- V1.0 (October 8, 2013): Bulletin published.