About the security content of iCloud for Windows 10.9.2

This document describes the security content of iCloud for Windows 10.9.2.

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 10.9.2

ImageIO

Available for: Windows 10 and later via the Microsoft Store

Impact: Processing a maliciously crafted image may lead to arbitrary code execution

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2020-3826: Samuel Groß of Google Project Zero

libxml2

Available for: Windows 10 and later via the Microsoft Store

Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution

Description: A buffer overflow was addressed with improved size validation.

CVE-2020-3846: Ranier Vilela

WebKit

Available for: Windows 10 and later via the Microsoft Store

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

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

CVE-2020-3867: an anonymous researcher

WebKit

Available for: Windows 10 and later via the Microsoft Store

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

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

CVE-2020-3825: Przemysław Sporysz of Euvic

CVE-2020-3868: Marcin Towalski of Cisco Talos

WebKit

Available for: Windows 10 and later via the Microsoft Store

Impact: A malicious website may be able to cause a denial of service

Description: A denial of service issue was addressed with improved memory handling.

CVE-2020-3862: Srikanth Gatta of Google Chrome

WebKit

Available for: Windows 10 and later via the Microsoft Store

Impact: Visiting a maliciously crafted website may reveal the sites a user has visited

Description: The HTTP referrer header may be used to leak browsing history. The issue was resolved by downgrading all third-party referrers to their origin.

CVE-2019-8827: Artur Janc, Krzysztof Kotowicz, Lukas Weichselbaum, and Roberto Clapis of Google Security Team

WebKit Page Loading

Available for: Windows 10 and later via the Microsoft Store

Impact: A top-level DOM object context may have incorrectly been considered secure

Description: A logic issue was addressed with improved validation.

CVE-2020-3865: Ryan Pickren (ryanpickren.com)

WebKit Page Loading

Available for: Windows 10 and later via the Microsoft Store

Impact: A DOM object context may not have had a unique security origin

Description: A logic issue was addressed with improved validation.

CVE-2020-3864: Ryan Pickren (ryanpickren.com)