Safari 11 1 2 Problems
Clear Safari History and Website Data. Another solution I would suggest you try out is clean up Safari. Perhaps you haven’t cleared out the cached files for a long time, and the junkies have piled up to become problematic for the web browser. A complete cleanup might resolve the issue. Open the Settings app → tap on Safari.
About Apple security updates
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IOS 11.4/11.3/11.2/11.1/11 Problem: Software Update Failed. “Software Update Failed. Apple has released the seventh official update for iOS 11, iOS 11.1.2 to fix the known issue with the unresponsive screen and distortion in Live Photos and videos captured on the iPhone X. However, even though iOS 11.1.2 fixes some issues, it actually causes some more, maybe even bigger, problems. 5 mac OS & OS X Safari problems. 5.1 Safari Secondary Issues on macOS and Mac OS X; 6 Where is the Print button in Safari iOS 13 / iPadOS? 7 Safari Issues with iOS 12, How To Fix. 7.1 Safari Not Loading After iTunes or Software Update? Seeing Message That “Safari Cannot Be Opened Because of a Problem?” 7.2 Safari Time Limit Message?
Apple security documents reference vulnerabilities by CVE-ID when possible.
Safari 11.1.2
Released July 9, 2018
Safari
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Visiting a malicious website may lead to address bar spoofing
Description: An inconsistent user interface issue was addressed with improved state management.
CVE-2018-4279: Ruilin Yang, Xu Taoyu (xia0yu.win)
CVE-2018-4362: Jun Kokatsu (@shhnjk)
Entry updated October 30, 2018
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: A memory corruption issue was addressed with improved memory handling.
CVE-2018-4270: found by OSS-Fuzz
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: A malicious website may exfiltrate audio data cross-origin
Description: Sound fetched through audio elements may be exfiltrated cross-origin. This issue was addressed with improved audio taint tracking.
CVE-2018-4278: Jun Kokatsu (@shhnjk)
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A type confusion issue was addressed with improved memory handling.
CVE-2018-4284: found by OSS-Fuzz
Entry updated October 30, 2018
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: A malicious website may be able to cause a denial of service
Description: A race condition was addressed with additional validation.
CVE-2018-4266: found by OSS-Fuzz
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
CVE-2018-4261: Omair working with Trend Micro's Zero Day Initiative
CVE-2018-4262: Mateusz Krzywicki working with Trend Micro's Zero Day Initiative
CVE-2018-4263: Arayz working with Trend Micro's Zero Day Initiative
CVE-2018-4264: found by OSS-Fuzz, Yu Zhou and Jundong Xie of Ant-financial Light-Year Security Lab
CVE-2018-4265: cc working with Trend Micro's Zero Day Initiative
CVE-2018-4267: Arayz of Pangu team working with Trend Micro's Zero Day Initiative
CVE-2018-4272: found by OSS-Fuzz
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash
Description: Multiple memory corruption issues were addressed with improved input validation.
CVE-2018-4271: found by OSS-Fuzz
CVE-2018-4273: found by OSS-Fuzz
WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Visiting a malicious website may lead to address bar spoofing
Description: A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation.
CVE-2018-4274: Tomasz Bojarski
Entry updated October 30, 2018
WebKit Page Loading
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.6
Impact: Visiting a malicious website may lead to address bar spoofing
Description: An inconsistent user interface issue was addressed with improved state management.
Safari 11 1 2 Problems Answers
CVE-2018-4260: xisigr of Tencent's Xuanwu Lab (tencent.com)