{"id":24861,"date":"2019-10-08T12:10:44","date_gmt":"2019-10-08T19:10:44","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/dotnet\/?p=24861"},"modified":"2019-10-14T11:12:38","modified_gmt":"2019-10-14T18:12:38","slug":"net-framework-october-2019-security-and-quality-rollup","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/dotnet\/net-framework-october-2019-security-and-quality-rollup\/","title":{"rendered":".NET Framework October 2019 Security and Quality Rollup"},"content":{"rendered":"<p>Today, we are releasing the October 2019 Security and Quality Rollup and Cumulative Updates for .NET Framework.<\/p>\n<h2>Security<\/h2>\n<p>No new security fixes. See <a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/net-framework-september-2019-security-and-quality-rollup\/\">September 2019 Security and Quality Rollup<\/a> for the latest security updates.<\/p>\n<h2>Quality and Reliability<\/h2>\n<p>This release contains the following quality and reliability improvements.<\/p>\n<h3>BCL<span style=\"font-size: 12pt;\"><sup>1<\/sup><\/span><\/h3>\n<ul>\n<li>Addresses an issue that affects thread contention that occurs in BinaryFormatter.GetTypeInformation by using ConcurrentDictionary to handle multi-thread access.<\/li>\n<\/ul>\n<h3>CLR<span style=\"font-size: 12pt;\"><sup>2<\/sup><\/span><\/h3>\n<ul>\n<li>Addresses an issue that might cause handle leaks to occur in scenarios that repeatedly load and unload Mscoree.dll.<\/li>\n<li>Addresses rare cases that incorrectly cause process termination instead of delivering the expected NullReferenceException result.<\/li>\n<\/ul>\n<h3>WPF<span style=\"font-size: 12pt;\"><sup>3<\/sup><\/span><\/h3>\n<ul>\n<li>Addresses an issue that affects a WPF ComboBox (or any Selector) within a DataGrid cell that can try to change its selection properties (SelectedIndex, SelectedItem, SelectedValue) when the cell&#8217;s data item is re-virtualized or removed from the underlying collection. This can occur if the Selector&#8217;s ItemSource property is data bound through the cell&#8217;s DataContext setting. Depending on the virtualization mode and the bindings that are declared for the selection properties, the symptoms can include unexpected changes (to null) of the data item&#8217;s properties, and unexpected displays (as null) of other data items that re-use the UI that was previously attached to the re-virtualized item.<\/li>\n<li>Addresses an issue in which a WPF TextBox or RichTextBox element that has spell checking enabled crashes and returns an &#8220;ExecutionEngineException&#8221; error in some situations, including inserting text near a hyperlink.<\/li>\n<li>Addresses an issue that affects Per-Monitor Aware WPF applications that host System-Aware or Unaware child windows and that run on .NET Framework 4.8. This .NET version occasionally crashes and returns a &#8220;System.Collections.Generic.KeyNotFoundException&#8221; exception.<\/li>\n<\/ul>\n<p><sup>1 <\/sup>Base Class Library (BCL)<br \/>\n<sup>2 <\/sup>Common Language Runtime (CLR)<br \/>\n<sup>3 <\/sup>Windows Presentation Foundation (WPF)<\/p>\n<h2><a id=\"user-content-getting-the-update\" class=\"anchor\" href=\"#getting-the-update\"><\/a>Getting the Update<\/h2>\n<p>The Security and Quality Rollup is available via Windows Update, Windows Server Update Services, and Microsoft Update Catalog.<\/p>\n<h3><a id=\"user-content-microsoft-update-catalog\" class=\"anchor\" href=\"#microsoft-update-catalog\"><\/a>Microsoft Update Catalog<\/h3>\n<p>You can get the update via the Microsoft Update Catalog. For Windows 10, NET Framework 4.8 updates are available via Windows Update, Windows Server Update Services, Microsoft Update Catalog. Updates for other versions of .NET Framework are part of the Windows 10 Monthly Cumulative Update.<\/p>\n<p><strong>Note<\/strong>: Customers that rely on Windows Update and Windows Server Update Services will automatically receive the .NET Framework version-specific updates. Advanced system administrators can also take use of the below direct Microsoft Update Catalog download links to .NET Framework-specific updates. Before applying these updates, please ensure that you carefully review the .NET Framework version applicability, to ensure that you only install updates on systems where they apply. The following table is for Windows 10 and Windows Server 2016+ versions. <\/p>\n<table>\n<thead>\n<tr>\n<th>Product Version<\/th>\n<th>Cumulative Update<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Windows 10 1903 and Windows Server, version 1903<\/strong><\/td>\n<td><strong><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524100\" rel=\"nofollow\">Catalog<\/a><\/strong> <strong><a href=\"https:\/\/support.microsoft.com\/kb\/4524100\" rel=\"nofollow\">4524100<\/a><\/strong><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.8<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515871\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515871\" rel=\"nofollow\">4515871<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Windows 10 1809 (October 2018 Update) Windows Server 2019<\/strong><\/td>\n<td><strong><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524099\" rel=\"nofollow\">Catalog<\/a><\/strong> <strong><a href=\"https:\/\/support.microsoft.com\/kb\/4524099\" rel=\"nofollow\">4524099<\/a><\/strong><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.7.2<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515855\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515855\" rel=\"nofollow\">4515855<\/a><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.8<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515843\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515843\" rel=\"nofollow\">4515843<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Windows 10 1803 (April 2018 Update)<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.7.2<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4520008\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4520008\" rel=\"nofollow\">4520008<\/a><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 4.8<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524098\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524098\" rel=\"nofollow\">4524098<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Windows 10 1709 (Fall Creators Update)<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.7.1, 4.7.2<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4520004\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4520004\" rel=\"nofollow\">4520004<\/a><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 4.8<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524097\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524097\" rel=\"nofollow\">4524097<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Windows 10 1703 (Creators Update)<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.7, 4.7.1, 4.7.2<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4520010\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4520010\" rel=\"nofollow\">4520010<\/a><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 4.8<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524096\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524096\" rel=\"nofollow\">4524096<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Windows 10 1607 (Anniversary Update) Windows Server 2016<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4519998\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4519998\" rel=\"nofollow\">4519998<\/a><\/td>\n<\/tr>\n<tr>\n<td>.NET Framework 4.8<\/td>\n<td><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524095\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524095\" rel=\"nofollow\">4524095<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p>The following table is for earlier Windows and Windows Server versions.<\/p>\n<table>\n<thead>\n<tr>\n<th>\n        Product Version\n      <\/th>\n<th>\n        Security and Quality Rollup\n      <\/th>\n<th>\n      <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n        <strong>Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2 <\/strong>\n      <\/td>\n<td>\n        <strong><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524104\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524104\" rel=\"nofollow\">4524104<\/a><\/strong>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 3.5\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507005\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507005\" rel=\"nofollow\">4507005<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.5.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4506999\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4506999\" rel=\"nofollow\">4506999<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515853\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515853\" rel=\"nofollow\">4515853<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.8\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515846\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515846\" rel=\"nofollow\">4515846<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        <strong>Windows Server 2012<\/strong>\n      <\/td>\n<td>\n        <strong><a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524103\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524103\" rel=\"nofollow\">4524103<\/a><\/strong>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 3.5\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507002\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507002\" rel=\"nofollow\">4507002<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.5.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507000\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507000\" rel=\"nofollow\">4507000<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515852\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515852\" rel=\"nofollow\">4515852<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.8\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515845\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515845\" rel=\"nofollow\">4515845<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        <strong>Windows 7 SP1 Windows Server 2008 R2 SP1<\/strong>\n      <\/td>\n<td>\n        <strong> <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524102\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524102\" rel=\"nofollow\">4524102<\/a><\/strong>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 3.5.1\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507004\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507004\" rel=\"nofollow\">4507004<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.5.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507001\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507001\" rel=\"nofollow\">4507001<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515854\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515854\" rel=\"nofollow\">4515854<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.8\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515847\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515847\" rel=\"nofollow\">4515847<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        <strong>Windows Server 2008<\/strong>\n      <\/td>\n<td>\n        <strong> <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4524105\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4524105\" rel=\"nofollow\">4524105<\/a><\/strong>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 2.0, 3.0\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507003\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507003\" rel=\"nofollow\">4507003<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.5.2\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4507001\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4507001\" rel=\"nofollow\">4507001<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<tr>\n<td>\n        .NET Framework 4.6\n      <\/td>\n<td>\n        <a href=\"http:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=4515854\" rel=\"nofollow\">Catalog<\/a> <a href=\"https:\/\/support.microsoft.com\/kb\/4515854\" rel=\"nofollow\">4515854<\/a>\n      <\/td>\n<td>\n      <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3> <\/h3>\n<h3>Previous Monthly Rollups<\/h3>\n<p>The last few .NET Framework Monthly updates are listed below for your convenience:<\/p>\n<ul>\n<li><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/net-framework-september-2019-preview-of-quality-rollup\/\">September 2019 Preview of Quality Rollup<\/a><\/li>\n<li><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/net-framework-september-2019-security-and-quality-rollup\/\">September 2019 Security and Quality Rollup<\/a><\/li>\n<li><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/net-framework-august-30-2019-cumulative-update-for-windows-10-version-1903\/\">August Cumulative Update for Windows 10 version 1903<\/a><\/li>\n<li><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/net-framework-august-2019-preview-of-quality-rollup\/\">August 2019 Preview of Quality Rollup<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Today, we are releasing the October 2019 Security and Quality Rollup and Cumulative Updates for .NET Framework. Security No new security fixes. See September 2019 Security and Quality Rollup for the latest security updates. Quality and Reliability This release contains the following quality and reliability improvements. BCL1 Addresses an issue that affects thread contention that [&hellip;]<\/p>\n","protected":false},"author":1334,"featured_media":58792,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[195],"tags":[],"class_list":["post-24861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dotnet-framework"],"acf":[],"blog_post_summary":"<p>Today, we are releasing the October 2019 Security and Quality Rollup and Cumulative Updates for .NET Framework. Security No new security fixes. See September 2019 Security and Quality Rollup for the latest security updates. Quality and Reliability This release contains the following quality and reliability improvements. BCL1 Addresses an issue that affects thread contention that [&hellip;]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts\/24861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/users\/1334"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/comments?post=24861"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts\/24861\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/media\/58792"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/media?parent=24861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/categories?post=24861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/tags?post=24861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}