Apple Releases Safari 10 for OS X El Capitan and Yosemite

Apple released Safari 10 for OS X El Capitan and Yosemite on Tuesday. The release was timed with the release of macOS Sierra, and it includes several new features, as well as 21 security fixes.

The biggest new feature is support for Safari Extensions through the Mac App Store. Safari 10 will also prefer HTML 5 videos whenever possible. There are some UI improvements, as well.

You can download Safari 10 through the Mac App Store under the Updates tab in El Capitan and Yosemite. It’s automatically included in macOS Sierra.

Safari 10 Patch Notes

The Safari 10 update is recommended for all OS X El Capitan users and contains improvements to privacy, compatibility, and security. This update:

• Adds support for Safari Extensions from the Mac App Store
• Displays HTML 5 video whenever available for faster downloads, better battery life, and stronger security
• Enhances security by running plug-ins only on websites you authorize
• Improves AutoFill and adds support for auto-filling information from any contact in Contacts
• Enhances the formatting in Reader view
• Remembers Zoom level for each website users visit

Apple also squashed some 21 security bugs in Safari 10. These bugs include several that allow the bad guys to compromise or take over your Mac.

Safari 10

Released September 20, 2016

Safari Reader

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: Enabling the Safari Reader feature on a maliciously crafted webpage may lead to universal cross site scripting

Description: Multiple validation issues were addressed through improved input sanitization.

CVE-2016-4618: an anonymous researcher

Safari Tabs

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: Visiting a malicious website may lead to address bar spoofing

Description: A state management issue existed in the handling of tab sessions. This issue was addressed through session state management.

CVE-2016-4751: Daniel Chatfield of Monzo Bank

WebKit

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A parsing issue existed in the handling of error prototypes. This was addressed through improved validation.

CVE-2016-4728: Daniel Divricean

WebKit

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: Visiting a maliciously crafted website may leak sensitive data

Description: A permissions issue existed in the handling of the location variable. This was addressed though additional ownership checks.

CVE-2016-4758: Masato Kinugawa of Cure53

WebKit

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2016-4611: Apple

CVE-2016-4729: Apple

CVE-2016-4730: Apple

CVE-2016-4731: Apple

CVE-2016-4734: Natalie Silvanovich of Google Project Zero

CVE-2016-4735: André Bargull

CVE-2016-4737: Apple

CVE-2016-4759: Tongbo Luo of Palo Alto Networks

CVE-2016-4762: Zheng Huang of Baidu Security Lab

CVE-2016-4766: Apple

CVE-2016-4767: Apple

CVE-2016-4768: Anonymous working with Trend Micro’s Zero Day Initiative

CVE-2016-4769: Tongbo Luo of Palo Alto Networks

WebKit

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: A malicious website may be able to access non-HTTP services

Description: Safari’s support of HTTP/0.9 allowed cross-protocol exploitation of non-HTTP services using DNS rebinding. The issue was addressed by restricting HTTP/0.9 responses to default ports and canceling resource loads if the document was loaded with a different HTTP protocol version.

CVE-2016-4760: Jordan Milne

WebKit

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved state management.

CVE-2016-4733: Natalie Silvanovich of Google Project Zero

CVE-2016-4765: Apple

WebKit

Available for: OS X Yosemite v10.10.5 and OS X El Capitan v10.11.6

Impact: An attacker in a privileged network position may be able to intercept and alter network traffic to applications using WKWebView with HTTPS

Description: A certificate validation issue existed in the handling of WKWebView. This issue was addressed through improved validation.

CVE-2016-4763: an anonymous researcher