About the security content of iCloud for Windows 7.16

This document describes the security content of iCloud for Windows 7.16.

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.

iCloud for Windows 7.16

CFNetwork

Available for: Windows 7 and later

Impact: An attacker in a privileged network position may be able to bypass HSTS for a limited number of specific top-level domains previously not in the HSTS preload list

Description: A configuration issue was addressed with additional restrictions.

CVE-2019-8834: Rob Sayre (@sayrer)

CFNetwork Proxies

Available for: Windows 7 and later

Impact: An application may be able to gain elevated privileges

Description: This issue was addressed with improved checks.

CVE-2019-8848: Zhuo Liang of Qihoo 360 Vulcan Team

libexpat

Available for: Windows 7 and later

Impact: Parsing a maliciously crafted XML file may lead to disclosure of user information

Description: This issue was addressed by updating to expat version 2.2.8.

CVE-2019-15903: Joonun Jang

WebKit

Available for: Windows 7 and later

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

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

CVE-2019-8835: Anonymous working with Trend Micro's Zero Day Initiative, Mike Zhang of Pangu Team

CVE-2019-8844: William Bowling (@wcbowling)

WebKit

Available for: Windows 7 and later

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

Description: A use after free issue was addressed with improved memory management.

CVE-2019-8846: Marcin Towalski of Cisco Talos