About the security content of Safari 13

This document describes the security content of Safari 13.

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.

For more information about security, see the Apple Product Security page.

Safari 13

WebKit

Available for: macOS Mojave 10.14.6 and macOS High Sierra 10.13.6

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

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

CVE-2019-8625: Sergei Glazunov of Google Project Zero

CVE-2019-8719: Sergei Glazunov of Google Project Zero

WebKit

Available for: macOS Mojave 10.14.6 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-2019-8707: an anonymous researcher working with Trend Micro's Zero Day Initiative, cc working with Trend Micro Zero Day Initiative

CVE-2019-8726: Jihui Lu of Tencent KeenLab

CVE-2019-8728: Junho Jang of LINE Security Team and Hanul Choi of ABLY Corporation

CVE-2019-8733: Sergei Glazunov of Google Project Zero

CVE-2019-8734: found by OSS-Fuzz

CVE-2019-8735: G. Geshev working with Trend Micro Zero Day Initiative

WebKit Page Loading

Available for: macOS Mojave 10.14.6 and macOS High Sierra 10.13.6

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

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

CVE-2019-8674: Sergei Glazunov of Google Project Zero

Additional recognition

WebKit

We would like to acknowledge MinJeong Kim of Information Security Lab, Chungnam National University, JaeCheol Ryou of the Information Security Lab, Chungnam National University in South Korea, Yiğit Can YILMAZ (@yilmazcanyigit), Zhihua Yao of DBAPPSecurity Zion Lab, an anonymous researcher, cc working with Trend Micro's Zero Day Initiative for their assistance.