About the security content of iCloud for Windows 7.7

This document describes the security content of iCloud for Windows 7.7.

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.

For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.

Apple security documents reference vulnerabilities by CVE-ID when possible.

iCloud for Windows 7.7

CFNetwork

Available for: Windows 7 and later

Impact: An application may be able to execute arbitrary code with system privileges

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

CVE-2018-4126: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative

CoreFoundation

Available for: Windows 7 and later

Impact: An application may be able to gain elevated privileges

Description: A memory corruption issue was addressed with improved input validation.

CVE-2018-4414: The UK's National Cyber Security Centre (NCSC)

CoreFoundation

Available for: Windows 7 and later

Impact: A malicious application may be able to elevate privileges

Description: A memory corruption issue was addressed with improved input validation.

CVE-2018-4412: The UK's National Cyber Security Centre (NCSC)

CoreText

Available for: Windows 7 and later

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

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

CVE-2018-4347: Vasyl Tkachuk of Readdle

WebKit

Available for: Windows 7 and later

Impact: Unexpected interaction causes an ASSERT failure

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

CVE-2018-4191: found by OSS-Fuzz

WebKit

Available for: Windows 7 and later

Impact: Cross-origin SecurityErrors includes the accessed frame’s origin

Description: The issue was addressed by removing origin information.

CVE-2018-4311: Erling Alf Ellingsen (@steike)

WebKit

Available for: Windows 7 and later

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

Description: A memory corruption issue was addressed with improved state management.

CVE-2018-4316: crixer, Hanming Zhang (@4shitak4) of Qihoo 360 Vulcan Team

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-2018-4299: Samuel Groβ (saelo) working with Trend Micro's Zero Day Initiative

CVE-2018-4323: Ivan Fratric of Google Project Zero

CVE-2018-4328: Ivan Fratric of Google Project Zero

CVE-2018-4358: @phoenhex team (@bkth_ @5aelo @_niklasb) working with Trend Micro's Zero Day Initiative

CVE-2018-4359: Samuel Groß (@5aelo)

CVE-2018-4360: William Bowling (@wcbowling)

WebKit

Available for: Windows 7 and later

Impact: A malicious website may cause unexepected cross-origin behavior

Description: A cross-origin issue existed with "iframe" elements. This was addressed with improved tracking of security origins.

CVE-2018-4319: John Pettitt of Google

WebKit

Available for: Windows 7 and later

Impact: A malicious website may be able to execute scripts in the context of another website

Description: A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation.

CVE-2018-4309: an anonymous researcher working with Trend Micro's Zero Day Initiative

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-2018-4197: Ivan Fratric of Google Project Zero

CVE-2018-4306: Ivan Fratric of Google Project Zero

CVE-2018-4312: Ivan Fratric of Google Project Zero

CVE-2018-4314: Ivan Fratric of Google Project Zero

CVE-2018-4315: Ivan Fratric of Google Project Zero

CVE-2018-4317: Ivan Fratric of Google Project Zero

CVE-2018-4318: Ivan Fratric of Google Project Zero

WebKit

Available for: Windows 7 and later

Impact: A malicious website may exfiltrate image data cross-origin

Description: A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation.

CVE-2018-4345: Jun Kokatsu (@shhnjk)

WebKit

Available for: Windows 7 and later

Impact: Unexpected interaction causes an ASSERT failure

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

CVE-2018-4361: found by OSS-Fuzz

CVE-2018-4474: found by OSS-Fuzz

Additional recognition

SQLite

We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance.

WebKit

We would like to acknowledge Cary Hartline, Hanming Zhang from 360 Vuclan team, Tencent Keen Security Lab working with Trend Micro's Zero Day Initiative, and Zach Malone of CA Technologies for their assistance.