MS16-035: Description of the security update for the .NET Framework 3.5 in Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2: March 8, 2016

2016-03-08T00:00:00
ID KB3135985
Type mskb
Reporter Microsoft
Modified 2016-03-11T22:56:09

Description

<html><body><p>Resolves a vulnerability in the Microsoft .NET Framework. The security feature bypass exists in a .NET Framework component that does not properly validate certain elements of a signed XML document</p><h2></h2><div class="kb-summary-section section"><br/><a bookmark-id="appliestoproducts" href="#appliestoproducts" managed-link="" target="">View products that this article applies to.</a><span></span><br/></div><h2>Summary</h2><div class="kb-summary-section section">This update resolves a vulnerability in the Microsoft .NET Framework. The security feature bypass exists in a .NET Framework component that does not properly validate certain elements of a signed XML document. To learn more about this vulnerability, see <a href="https://technet.microsoft.com/library/security/ms16-035" id="kb-link-2" target="_self">Microsoft Security Bulletin MS16-035</a>.<br/><br/></div><h2>More Information</h2><div class="kb-moreinformation-section section"><span class="text-base">Important</span> All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update <a href="https://support.microsoft.com/en-us/help/2919355" id="kb-link-3" target="_self">2919355</a> to be installed. We recommend that you install update <a href="https://support.microsoft.com/en-us/help/2919355" id="kb-link-4" target="_self">2919355</a> on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.</div><h2>Known issues in this security update</h2><div class="kb-resolution-section section">You may experience the following issue after you install this update: <div class="indent"><a href="https://support.microsoft.com/help/3148821" id="kb-link-5" target="_self">After you apply security update 3141780, .NET Framework applications encounter exception errors or unexpected failures while processing files that contain SignedXml</a></div></div><h2></h2><div class="kb-resolution-section section"><h3 class="sbody-h3">How to obtain and install this update</h3><a class="bookmark" id="obtaintheupdate"></a><h4 class="sbody-h4">Method 1: Windows Update</h4><div class="kb-collapsible kb-collapsible-expanded">This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see the "Turn on automatic updating in the Control Panel" section of <a href="https://www.microsoft.com/security/pc-security/updates.aspx" id="kb-link-6" target="_self">this Safety & Security Center article</a>.<br/><br/><span class="text-base">Note</span> For Windows RT 8.1, this update is available through Windows Update only.</div><h4 class="sbody-h4">Method 2: Microsoft Download Center</h4><div class="kb-collapsible kb-collapsible-expanded">You can obtain the stand-alone update package through the Microsoft Download Center. To install this update, follow the install instructions on the download page.<br/><br/><img alt="Download " class="graphic" src="/library/images/support/kbgraphics/public/en-us/download.gif" title="Download "/><a href="http://go.microsoft.com/fwlink/?linkid=734779" id="kb-link-7" target="_self">Download security update 3135985</a></div></div><h2></h2><div><h4 class="sbody-h4">Update deployment information</h4>For deployment information about this update, see Microsoft Knowledge Base article <a href="https://support.microsoft.com/en-us/help/3141780" id="kb-link-8">3141780 </a>.<br/><br/></div><h2></h2><div class="kb-moreinformation-section section"><h4 class="sbody-h4">Update removal information</h4><span class="text-base">Note</span> We do not recommend that you remove any security update.<br/><br/>To remove this update, use the <strong class="uiterm">Programs and Features</strong> item in Control Panel.<br/><br/><h4 class="sbody-h4">Update restart information</h4>This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.<br/><br/><h4 class="sbody-h4">Update replacement information</h4>This update replaces previously released update <a href="https://support.microsoft.com/en-us/help/3035487" id="kb-link-9">3035487 </a>.<br/><br/><div class="faq-section" faq-section=""><div class="faq-panel"><div class="faq-panel-heading" faq-panel-heading=""><span class="link-expand-image"><span class="faq-chevron win-icon win-icon-ChevronUpSmall"></span></span><span class="bold btn-link link-expand-text"><span class="bold btn-link">File information</span></span></div><div class="faq-panel-body" faq-panel-body=""><span><div class="kb-collapsible kb-collapsible-collapsed"><h4 class="sbody-h4">File hash</h4><div class="kb-collapsible kb-collapsible-collapsed"><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><td class="sbody-td">Windows8.1-KB3135985-x64.msu</td><td class="sbody-td">997F132E865C137306298AF7A892371FAE229D40</td><td class="sbody-td">4DF58FE156DD9F2913197930B15F9EB2DDA25C30FF66524716F269D7A2D5C1C4</td></tr><tr class="sbody-tr"><td class="sbody-td">Windows8.1-KB3135985-x86.msu</td><td class="sbody-td">A35B6D8FCB45D0A870CF9B204BFB30EC1FE4378A</td><td class="sbody-td">1F7A59D14B154E2983E8A8D25309BB461F76FD80C3019520563970574A5549BF</td></tr></table></div><h4 class="sbody-h4">File attributes</h4><div class="kb-collapsible kb-collapsible-collapsed">The English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.<br/><br/><h4 class="sbody-h4">For all supported x86-based versions of systems</h4><div class="kb-collapsible kb-collapsible-collapsed"><h5 class="sbody-h5 text-subtitle">GDR service branch</h5><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><th class="sbody-th">File name</th><th class="sbody-th">File version</th><th class="sbody-th">File size</th><th class="sbody-th">Date</th><th class="sbody-th">Time</th></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8020</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:20</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8020</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:20</td></tr></table></div><h5 class="sbody-h5 text-subtitle">LDR service branch</h5><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><th class="sbody-th">File name</th><th class="sbody-th">File version</th><th class="sbody-th">File size</th><th class="sbody-th">Date</th><th class="sbody-th">Time</th></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8685</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:12</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8685</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:12</td></tr></table></div><h4 class="sbody-h4">For all supported x64-based versions of systems</h4><div class="kb-collapsible kb-collapsible-collapsed"><h5 class="sbody-h5 text-subtitle">GDR service branch</h5><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><th class="sbody-th">File name</th><th class="sbody-th">File version</th><th class="sbody-th">File size</th><th class="sbody-th">Date</th><th class="sbody-th">Time</th></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8020</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:18</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8020</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:20</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8020</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:18</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8020</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:20</td></tr></table></div><h5 class="sbody-h5 text-subtitle">LDR service branch</h5><div class="table-responsive"><table class="sbody-table table"><tr class="sbody-tr"><th class="sbody-th">File name</th><th class="sbody-th">File version</th><th class="sbody-th">File size</th><th class="sbody-th">Date</th><th class="sbody-th">Time</th></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8685</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:14</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8685</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:12</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8685</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:14</td></tr><tr class="sbody-tr"><td class="sbody-td">system.security.dll</td><td class="sbody-td">2.0.50727.8685</td><td class="sbody-td">266,240</td><td class="sbody-td">03-Feb-2016</td><td class="sbody-td">14:12</td></tr></table></div></div><br/></div></div></div></div></span></div></div></div><div class="faq-section" faq-section=""><div class="faq-panel"><div class="faq-panel-heading" faq-panel-heading=""><span class="link-expand-image"><span class="faq-chevron win-icon win-icon-ChevronUpSmall"></span></span><span class="bold btn-link link-expand-text"><span class="bold btn-link">How to obtain help and support for this security update</span></span></div><div class="faq-panel-body" faq-panel-body=""><span><div class="kb-collapsible kb-collapsible-collapsed">Help for installing updates: <a href="https://support.microsoft.com/ph/6527" id="kb-link-10" target="_self">Support for Microsoft Update</a><br/><br/>Security solutions for IT professionals: <a href="https://technet.microsoft.com/security/bb980617.aspx" id="kb-link-11" target="_self">TechNet Security Troubleshooting and Support</a><br/><br/>Help for protecting your Windows-based computer from viruses and malware: <a href="https://support.microsoft.com/contactus/cu_sc_virsec_master" id="kb-link-12" target="_self">Virus Solution and Security Center</a><br/><br/>Local support according to your country: <a href="https://support.microsoft.com/" id="kb-link-13" target="_self">International Support</a></div><br/></span></div></div></div></div><h2></h2><div class="kb-moreinformation-section section"><a class="bookmark" id="appliestoproducts"></a><br/><h3 class="sbody-h3">Applies to</h3>This article applies to the following:<ul class="sbody-free_list"><li>Microsoft .NET Framework 3.5 when used with:<ul class="sbody-free_list"><li>Windows Server 2012 R2</li><li>Windows RT 8.1</li><li>Windows 8.1</li></ul></li></ul></div></body></html>