About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
Released January 8, 2018
Available for: OS X El Capitan 10.11.6 and macOS Sierra 10.12.6
Description: Safari 11.0.2 includes security improvements to mitigate the effects of Spectre (CVE-2017-5753 and CVE-2017-5715).
We would like to acknowledge Jann Horn of Google Project Zero; and Paul Kocher in collaboration with Daniel Genkin of University of Pennsylvania and University of Maryland, Daniel Gruss of Graz University of Technology, Werner Haas of Cyberus Technology, Mike Hamburg of Rambus (Cryptography Research Division), Moritz Lipp of Graz University of Technology, Stefan Mangard of Graz University of Technology, Thomas Prescher of Cyberus Technology, Michael Schwarz of Graz University of Technology, and Yuval Yarom of University of Adelaide and Data61 for their assistance.
To check the version of Safari installed on your Mac:
- Open Safari.
- Choose Safari > About Safari.
- If the latest version of Safari 11.0.2 is installed, you see:
Version 11.0.2 (11604.4.7.1.6) on OS X El Capitan 10.11.6
Version 11.0.2 (12604.4.7.1.6) on macOS Sierra 10.12.6