Microsoft Security Bulletin MS12-028 - Important
Vulnerability in Microsoft Office Could Allow Remote Code Execution (2639185)
Published: | Updated:
This security update resolves a privately reported vulnerability in Microsoft Office and Microsoft Works. The vulnerability could allow remote code execution if a user opens a specially crafted Works file. An attacker who successfully exploited this vulnerability 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 Microsoft Office 2007 Service Pack 2, Microsoft Works 9, and the Microsoft Works 6–9 File Converter. For more information, see the subsection, Affected and Non-Affected Software, in this section.
The security update addresses the vulnerability by deprecating the vulnerable Microsoft Works converter. Customers should use the latest version of the Microsoft Works converter, which is not affected by the vulnerability. After the update is installed, customers with the deprecated Microsoft Works converter, who have not already downloaded the latest version of the Microsoft Works converter, will be prompted when attempting to open a Works file with instructions on how to download the latest version of the Microsoft Works converter. For more information about the vulnerability, 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 in supported editions of Windows XP and Windows Server 2003, see Microsoft Knowledge Base Article 294871. For information about automatic updating in supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, see Understanding Windows automatic updating.
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.
Known Issues. None
The following software have 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, visit Microsoft Support Lifecycle.
|Software||Maximum Security Impact||Aggregate Severity Rating||Bulletins Replaced by this Update|
|Microsoft Office 2007 Service Pack 2|
|Remote Code Execution||Important||KB969559 in MS09-024 replaced by KB2596871|
|Microsoft Works 9|
|Remote Code Execution||Important||KB2431831 in MS10-105 replaced by KB2680317|
|Microsoft Works 6–9 File Converter|
|Remote Code Execution||Important||KB968326 in MS09-024 replaced by KB2680326|
|Office and Other Software|
|Microsoft Office 2003 Service Pack 3|
|Microsoft Office 2007 Service Pack 3|
|Microsoft Office 2010 (32-bit editions)|
|Microsoft Office 2010 Service Pack 1 (32-bit editions)|
|Microsoft Office 2010 (64-bit editions)|
|Microsoft Office 2010 Service Pack 1 (64-bit editions)|
|Microsoft Office 2008 for Mac|
|Open XML File Format Converter for Mac|
|Microsoft Office for Mac 2011|
|Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2|
|Microsoft Office Compatibility Pack Service Pack 3|
Microsoft thanks the following for working with us to help protect customers:
- Shaun Colley of IOActive, Ltd. for reporting the Office WPS Converter Heap Overflow Vulnerability (CVE-2012-0177)
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 visit 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
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- V1.0 (April 10, 2012): Bulletin published.
- V1.1 (April 25, 2012): Added an entry to the update FAQ to explain why this update is offered to customers running Microsoft Office 2007 Service Pack 3.