July 14, 2020-KB4565629 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1703

ID KB4565629
Type mskb
Reporter Microsoft
Modified 2020-07-14T16:57:28


<html><body><p>July 14, 2020-KB4565629 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1703</p><h2></h2><div class="alert-band"> <div class="alert alert-info" role="alert"> <div class="row"> <div class="col-xs-24"> <p> Release Date:<br/><strong>July 14, 2020</strong></p> <p> Version:<br/><strong> .NET Framework 4.8</strong></p> </div> </div> </div> </div><h2>Summary</h2><p> A remote code execution vulnerability exists in .NET Framework when the software fails to check the source markup of XML file input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the process responsible for deserialization of the XML content. To exploit this vulnerability, an attacker could upload a specially crafted document to a server utilizing an affected product to process content. The security update addresses the vulnerability by correcting how .NET Framework validates the source markup of XML content. </p><p> This security update affects how .NET Framework's System.Data.DataTable and System.Data.DataSet types read XML-serialized data. Most .NET Framework applications will not experience any behavioral change after the update is installed. For more information on how the update affects .NET Framework, including examples of scenarios which may be affected, please see the DataTable and DataSet security guidance document at <a href="https://go.microsoft.com/fwlink/?linkid=2132227" id="2132227" target="_self">https://go.microsoft.com/fwlink/?linkid=2132227</a>. </p><p> To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE). </p><ul><li><a href="https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147" id="kb-link-2" target="_self">CVE-2020-1147</a></li></ul><h2>Known issues in this update</h2><p> <span>Microsoft is not currently aware of any issues in this update.</span> </p><h2>How to get this update</h2><p> <strong>Install this update</strong> </p><table class="table"> <tbody> <tr> <td> <strong>Release Channel</strong> </td> <td align="center"> <strong>Available</strong> </td> <td> <strong>Next Step</strong> </td> </tr> <tr> <td>Windows Update and Microsoft Update</td> <td align="center">Yes</td> <td>None. This update will be downloaded and installed automatically from Windows Update.</td> </tr> <tr> <td>Microsoft Update Catalog</td> <td align="center">Yes</td> <td> To get the standalone package for this update, go to the <a href="http://catalog.update.microsoft.com/v7/site/Search.aspx?q=4565629">Microsoft Update Catalog</a> website. </td> </tr> <tr> <td>Windows Server Update Services (WSUS)</td> <td align="center">Yes</td> <td> <p> This update will automatically sync with WSUS if you configure <strong>Products and Classifications</strong> as follows: </p> <p> <strong>Product</strong>:Windows 10 Version 1703</p> <strong>Classification</strong>: Security Updates </td> </tr> </tbody> </table><p></p><p> <strong>File information</strong> </p><p> <span>For a list of the files that are provided in this update, download the </span> <a data-content-id="" data-content-type="" href="https://download.microsoft.com/download/c/b/8/cb8598c1-afd2-4172-8c0a-b2df1dac13a9/4565629.csv" managed-link="" target="_blank"> file information for cumulative update </a>. </p><h2>Information about protection and security</h2><ul> <li> Protect yourself online: <a href="https://support.microsoft.com/hub/4099151/windows-security-help" originalsrc="https://support.microsoft.com/hub/4099151/windows-security-help" shash="RYy3LeXx+rmimVtQWgsOp2FdFIqw7JA//Q/gQk82okgjOsd4xXdoK0JeBzlEcm0ODcghLacwCQ7rq/te5MIy9rhRyjOI5z+tQLQ58N0ohXStVASL9xwW0nm7tWELhl8Vd+jYkRf314nXnEXaofpGgPwiR8IWSM1V+w57ooqQzME=" target="_blank">Windows Security support</a></li> <li> Learn how we guard against cyber threats: <a href="https://www.microsoft.com/security" originalsrc="https://www.microsoft.com/security" shash="Fb+Q8jcsMznGoXBaEpy7ItSNVM/ojkQHBsLDm3A6U1j8nU/EzgwX89Ox/pQeEuCbTUAIMz1KtFkOsv9oQSp0WSip1uNUHotfXevDx7dDk5kFn4u/io4q1ESXpDplQ989sCEmxdzRlhaLF3PHKXMoLlTmwS5dmeU5gGxfXDhL40w=">Microsoft Security</a></li> </ul></body></html>