Microsoft Rollsout Many Windows 10 Cumulative Updates, Build 14393.51 Released

Microsoft August 2016 Patch Tuesday fixes issues in Windows 10, Office, and Edge, Build 14393.51 released. RC4 on Edge deprecated.

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A new august 2016, Microsoft Security Bulletin Summary released today provide additional protections against malicious attackers.

Relased as part of the Patch Tuesday, it ship a total of 9 bulletins fixing issues in Windows, Office, and Edge in Windows 10. All critical patches address Remote Code Execution flaws. "The vulnerabilities could allow remote code execution if a user either visits a specially crafted website or opens a specially crafted document," reports Microsoft.

Here's a quick run down of the release:

Bulletin MS16-095 cumulative update fixes RCE vulnerabilities in Internet Explorer on all Windows versions.

MS16-096 security update addresses issues with Microsoft Edge browser in Windows 10.

MS16-097 is a critical security update for the Microsoft Graphics component, patches vulnerabilities effecting Windows, Office, Skype for Business, and Microsoft Lync.

MS16-099, MS16–102, both the critical security updates addresses Microsoft Office and Windows PDF Library.

Additionallym Microsoft has also rolled out cumulative updates for Windows 10 bringing some performance and bug fixes.

KB3176931 relesed today for Windows 10 build 14393.51 on PCs and Mobile:

  • Addressed issue causes significantly reduced battery life on Windows Phone when using Bluetooth with "Hey Cortana" feature enabled.
  • Addressed issue that prevents users from completing the out-of-box experience (OOBE) with a local account using Korean characters.
  • Addressed issue that may cause Windows 10 Mobile devices to hang after turning Bluetooth on and off very quickly.

Fist up, KB3176493 for the Windows 10 TH2 1511 November Update improves performance and reliability. The update known as 10586.545 also brings refinement to a number of apps including Microsoft Edge, nternet Explorer, and others.

Here are the improvements in 10586.545:

  • Improved reliability by allowing more time for devices to recover from connected standby mode.
  • Addressed issue affecting some devices with Bitlocker enabled that didn't start up to the BitLocker password entry screen.
  • Addressed issue with MouseUp and MouseDown events not working correctly when using a scroll bar in an Inline Frame (IFrame).
  • Addressed issue that delays the display of content when resizing the Internet Explorer 11 browser window.
  • Addressed issue with special keys and mouse clicks that don't work on devices when Remote Assistance is in session.
  • Addressed issue with rendering multi-pixel points in Web Graphics Library (WebGL).
  • Addressed additional issues with certain devices that can't transition from connected standby to sleep mode, updates not installing, and Internet Explorer 11.
  • Security updates to Internet Explorer 11, Microsoft Edge, Kernel Mode Drivers, Windows Authentication Methods, Microsoft Graphics Component, and Kernel Mode Blacklist.

KB3176495 along side improvements, also pushes the core version of the Anniversary Update to 14393.51. It addresses the following specifics:

  • Improved reliability for Internet Explorer 11
  • Addressed issue to keep pen click settings after updating to Windows 10 Version 1607
  • Addressed issue that may cause Windows 10 Mobile devices to hang after turning Bluetooth on and off very quickly.
  • Security updates to Kernel Mode Blacklist, Microsoft Edge, Internet Explorer 11, Microsoft Graphics Component, Windows Authentication Methods, the lock screen, Kernel Mode Drivers, and Secure Boot.

In addition, to those still runining version original Windows 10 build 10240, a KB3176492 (OS Build 10240.17071) offers:

  • Improved reliability for Internet Explorer 11 and WebDAV shares.
  • Addressed issue affecting some devices with Bitlocker enabled that didn't start up to the BitLocker password entry screen.
  • Addressed issue with MouseUp and MouseDown events not working correctly when using a scroll bar in an Inline Frame (IFrame).
  • Addressed issue that delays the display of content when resizing the Internet Explorer 11 browser window.
  • Addressed issue in DNS Subnet Prioritization that was impacting network connectivity.
  • Addressed issue with OLE drag and drop that prevents the download of more than one item per operation.
  • Addressed additional issues with revised daylight saving time, updates not installing, Internet Explorer 11, and the Windows kernel.
  • Security updates to Kernel Mode Blacklist, Microsoft Edge, Internet Explorer 11, Microsoft Graphics Component, Windows Authentication Methods, the lock screen, Kernel Mode Drivers, and Secure Boot.

Another cmulative update for Build 14393.67 (for both Windows 10 PCs and Mobile) is released today to all three Windows Insider Preview rings: Fast, Slow, and Release Preview. Here's the list of the isssue addressed:

  • Addressed issue that causes significantly reduced battery life on Windows Phone when using Bluetooth with "Hey Cortana" feature enabled
  • Addressed issue that prevents users from completing the out-of-box experience (OOBE) with a local account using Korean characters
  • Addressed issue that may cause Windows 10 Mobile devices to hang after turning Bluetooth on and off very quickly.

In another post today on Windows 10 Feedback Hub, a Microsoft company official though not specifically but gave an hnt that they'ill soon start releasing new build to Insider Preview for PCs first—followed by Windows 10 Mobile Redstone 2 builds "a few weeks after".

"We are now getting ready to start releasing new builds from our Development Branch to Windows Insiders in the Fast ring again. Just like we did after the release of the Windows 10 November Update - we will start off by releasing PC builds from our Development Branch first and then start releasing Mobile builds a few weeks after," the official stated.

Today, the company has alsow announced the deprecation of the RC4 cipher from Internet 11 and Microsoft Edge.

KB3151631 released as part of Patch Tuesday cycle set of updates that will disable RC4 stream cipher in both Internet Explorer 11 on Windows 7, 8, 8.1 and in the Edge browser on Windows 10.

For those unfamiliar, RC4 was first conceived in 1987, and has since been widely used in web browsers such as Chrome and Firefox. However, it's a proven insecure form of cryptography, in fact, it can be broken within hours or days.

"The typical attacks on RC4 exploit biases in the RC4 keystream to recover repeatedly encrypted plaintexts. In February 2015, these new attacks prompted the Internet Engineering Task Force to prohibit the use of RC4 with TLS.

Previously, Microsoft Edge and Internet Explorer 11 allowed RC4 during a fallback from TLS 1.2 or 1.1 to TLS 1.0. A fallback to TLS 1.0 with RC4 is most often the result of an innocent error, but this is indistinguishable from a man-in-the-middle attack. For this reason, RC4 is now entirely disabled by default for Microsoft Edge and Internet Explorer users on Windows 7, Windows 8.1 and Windows 10," the company explains.

However, if own or admin a site that utilizes RC4, then follow the guideline Microsoft outlines in Security Advisory 2868725.

For supported ciphers, and additional information, you can see Cipher Suites in TLS/SSL (Schannel SSP).

While on updates, another Microsoft product rolling out a firmware update to the Windows 10 tablet Surface 3. The owners should see it listed on Windows Update as "System Firmware Update - 8/8/2016".

Finally, while we are still on Windows 10, here is a small tip that gets you dark theme on your Windows 10 PCs. The feature dubbed as 'dark theme' is a part of the Anniversary Update.

Here's how to get started with the dark mode: Go to Settings, then click on "Personalization." Choose "Colors," and, finally, under "App Mode," choose "Dark."

Please note, not all themes, you can even change your apps instantly from light mode to dark mode – great for low-light conditions like working at night. When you make the switch, UWP apps including Mail, Calendar and the Windows Store app go to a black background, which can even save your battery power.