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Microsoft Security Bulletin MS13-094 - Important

Vulnerability in Microsoft Outlook Could Allow Information Disclosure (2894514)

Published:

Version: 1.0

General Information

Executive Summary

This security update resolves a publicly disclosed vulnerability in Microsoft Outlook. The vulnerability could allow information disclosure if a user opens or previews a specially crafted email message using an affected edition of Microsoft Outlook. An attacker who successfully exploited this vulnerability could ascertain system information, such as the IP address and open TCP ports, from the target system and other systems that share the network with the target system.

This security update is rated Important for all supported editions of Microsoft Outlook 2007, Microsoft Outlook 2010, Microsoft Outlook 2013, and Microsoft Outlook 2013 RT. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the way that Microsoft Outlook parses specially crafted S/MIME email messages. 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

Knowledge Base Article2894514
File informationYes
SHA1/SHA2 hashesYes
Known issuesYes

Affected and Non-Affected Software

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.

Affected Software

Microsoft Office SoftwareComponentMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Microsoft Office 2007
Microsoft Office 2007 Service Pack 3Microsoft Outlook 2007 Service Pack 3 
(2825644)
Information DisclosureImportant2825999 in MS13-068
Microsoft Office 2010
Microsoft Office 2010 Service Pack 1 (32-bit editions)Microsoft Outlook 2010 Service Pack 1 (32-bit editions) 
(2837597)
Information DisclosureImportant2794707 in MS13-068
Microsoft Office 2010 Service Pack 2 (32-bit editions)Microsoft Outlook 2010 Service Pack 2 (32-bit editions) 
(2837597)
Information DisclosureImportant2794707 in MS13-068
Microsoft Office 2010 Service Pack 1 (64-bit editions)Microsoft Outlook 2010 Service Pack 1 (64-bit editions) 
(2837597)
Information DisclosureImportant2794707 in MS13-068
Microsoft Office 2010 Service Pack 2 (64-bit editions)Microsoft Outlook 2010 Service Pack 2 (64-bit editions) 
(2837597)
Information DisclosureImportant2794707 in MS13-068
Microsoft Office 2013
Microsoft Office 2013 (32-bit editions)Microsoft Outlook 2013 (32-bit editions) 
(2837618)
Information DisclosureImportantNone
Microsoft Office 2013 (64-bit editions)Microsoft Outlook 2013 (64-bit editions) 
(2837618)
Information DisclosureImportantNone
Microsoft Office 2013 RT
Microsoft Office 2013 RTMicrosoft Outlook 2013 RT[1] 
(2837618)
Information DisclosureImportantNone

[1]This update is available via Windows Update.

 

Non-Affected Software 

Office and Other Software
Microsoft Outlook 2003 Service Pack 3

Update FAQ

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

S/MIME AIA Vulnerability – CVE-2013-3905

Update Information

Detection and Deployment Tools and Guidance

Security Update Deployment

Other Information

Acknowledgments

Microsoft thanks the following for working with us to help protect customers:

Microsoft Active Protections Program (MAPP)

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.

Support

How to obtain help and support for this security update

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 (November 12, 2013): Bulletin published.