Apple has released Safari 11.0.1 for OS X El Capitan 10.11.6 and macOS Sierra 10.12.6. OS X (High Sierra 10.13.1 also includes it; see “macOS 10.13.1 High Sierra Offers Minor Fixes and More Emoji,” 1 November 2017). The update fixes two security concerns: an inconsistent user interface issue that could lead to address bar spoofing if visiting a malicious Web site and multiple memory corruption issues in WebKit that could lead to arbitrary code execution. Safari 11.0.1 is available only via Software Update. (Free, 10.11.6+)
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