About the security content of Safari 12.0.2

This document describes the security content of Safari 12.0.2.

About Apple security updates

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Safari 12.0.2

Released December 5, 2018

Safari

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.1

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

Description: A logic issue was addressed with improved state management.

CVE-2018-4440: Wenxu Wu of Tencent Security Xuanwu Lab (xlab.tencent.com)

Safari

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.1

Impact: Visiting a malicious website may lead to user interface spoofing

Description: A logic issue was addressed with improved validation.

CVE-2018-4439: xisigr of Tencent's Xuanwu Lab (tencent.com)

Safari

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.1

Impact: A user may be unable to fully delete browsing history

Description: "Clear History and Website Data" did not clear the history. The issue was addressed with improved data deletion.

CVE-2018-4445: William Breuer

WebKit

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.1

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

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

CVE-2018-4437: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of KAIST Softsec Lab, Korea

CVE-2018-4464: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of KAIST Softsec Lab, Korea

WebKit

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.1

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

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2018-4441: lokihardt of Google Project Zero

CVE-2018-4442: lokihardt of Google Project Zero

CVE-2018-4443: lokihardt of Google Project Zero

WebKit

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.1

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

Description: A logic issue existed resulting in memory corruption. This was addressed with improved state management.

CVE-2018-4438: lokihardt of Google Project Zero

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