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 7.1
Released October 31, 2017
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-2017-13783: Ivan Fratric of Google Project Zero
CVE-2017-13784: Ivan Fratric of Google Project Zero
CVE-2017-13785: Ivan Fratric of Google Project Zero
CVE-2017-13788: xisigr of Tencent's Xuanwu Lab (tencent.com)
CVE-2017-13791: Ivan Fratric of Google Project Zero
CVE-2017-13792: Ivan Fratric of Google Project Zero
CVE-2017-13793: Hanul Choi working with Trend Micro's Zero Day Initiative
CVE-2017-13794: Ivan Fratric of Google Project Zero
CVE-2017-13795: Ivan Fratric of Google Project Zero
CVE-2017-13796: Ivan Fratric of Google Project Zero
CVE-2017-13797: Ivan Fratric of Google Project Zero
CVE-2017-13798: Ivan Fratric of Google Project Zero
CVE-2017-13802: Ivan Fratric of Google Project Zero
CVE-2017-13803: chenqin (陈钦) of Ant-financial Light-Year Security
Entry updated November 2, 2017