Apple released iOS 11.2.2 software Monday for iPhones, iPads and iPod touch models that patch for the Spectre vulnerabilities. A macOS High Sierra 10.13.2 supplemental update was also released to bolster Spectre defenses in Apple s Safari browser and WebKit, the web browser engine used by Safari, Mail, and App Store. The updates includes security improvements to mitigate the two known methods for exploiting Spectre identified as variants bounds check bypass (CVE-2017-5753/Spectre/variant 1) and branch target injection
Source: https://threatpost.com/apple-releases-spectre-patches-for-safari-macos-and-ios/129365/