MS14-006: Vulnerability in IPv6 Could Allow Denial of Service (2904659)

This security update resolves a publicly disclosed vulnerability in Microsoft Windows.

Microsoft Security Bulletin MS14-006 - Important
Vulnerability in IPv6 Could Allow Denial of Service (2904659)
Published: Tuesday, February 11, 2014

Version: 1.0

General Information
Executive Summary
This security update resolves a publicly disclosed vulnerability in Microsoft Windows. The vulnerability could allow denial of service if an attacker sends a large number of specially crafted IPv6 packets to an affected system. To exploit the vulnerability, an attacker's system must belong to the same subnet as the target system.

This security update is rated Important for all supported editions of Windows 8, Windows RT, and Windows Server 2012. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by modifying the way that the affected operating systems validate TCP/IP requests. 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. Most customers have automatic updating enabled and 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 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.

Top of section
Knowledge Base Article
Knowledge Base Article    2904659
File information    Yes
SHA1/SHA2 hashes    Yes
Known issues    None
Top of section
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

Operating System    Maximum Security Impact    Aggregate Severity Rating    Updates Replaced
Windows 8
Windows 8 for 32-bit Systems
(2904659)    Denial of Service    Important    2868623 in MS13-065
Windows 8 for x64-based Systems
(2904659)    Denial of Service    Important    2868623 in MS13-065
Windows Server 2012
Windows Server 2012
(2904659)    Denial of Service    Important    2868623 in MS13-065
Windows RT
Windows RT[1]
(2904659)    Denial of Service    Important    2868623 in MS13-065
Server Core installation option
Windows Server 2012 (Server Core installation)
(2904659)    Denial of Service    Important    2868623 in MS13-065
[1]This update is available via Windows Update.



Non-Affected Software

Operating System
Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012 R2
Windows RT 8.1
Server Core installation option
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Top of section
Update FAQ
Vulnerability Information
Severity Ratings and Vulnerability Identifiers
TCP/IP Version 6 (IPv6) Denial of Service Vulnerability - CVE-2014-0254
Update Information
Detection and Deployment Tools and Guidance
Security Update Deployment
Other Information
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.

Top of section
Support
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
Top of section
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.

Top of section
Revisions
V1.0 (February 11, 2014): Bulletin published.
Top of section
Top of page
Telegram Подписывайтесь на канал "SecurityLab" в Telegram, чтобы первыми узнавать о новостях и эксклюзивных материалах по информационной безопасности.