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APPLE-SA-2020-03-25-1 iCloud for Windows 10.9.3

iCloud for Windows 10.9.3 is now available and addresses the
following:

libxml2
Available for: Windows 10 and later via the Microsoft Store
Impact: Multiple issues in libxml2
Description: A buffer overflow was addressed with improved size
validation.
CVE-2020-3910: LGTM.com

libxml2
Available for: Windows 10 and later via the Microsoft Store
Impact: Multiple issues in libxml2
Description: A buffer overflow was addressed with improved bounds
checking.
CVE-2020-3909: LGTM.com
CVE-2020-3911: found by OSS-Fuzz

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A type confusion issue was addressed with improved
memory handling.
CVE-2020-3901: Benjamin Randazzo (@____benjamin)

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: A download's origin may be incorrectly associated
Description: A logic issue was addressed with improved restrictions.
CVE-2020-3887: Ryan Pickren (ryanpickren.com)

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2020-3895: grigoritchy
CVE-2020-3900: Dongzhuo Zhao working with ADLab of Venustech

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: An application may be able to read restricted memory
Description: A race condition was addressed with additional
validation.
CVE-2020-3894: Sergei Glazunov of Google Project Zero

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: A remote attacker may be able to cause arbitrary code
execution
Description: A type confusion issue was addressed with improved
memory handling.
CVE-2020-3897: Brendan Draper (@6r3nd4n) working with Trend Micro’s
Zero Day Initiative

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: Processing maliciously crafted web content may lead to code
execution
Description: A use after free issue was addressed with improved
memory management.
CVE-2020-9783: Apple

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: A remote attacker may be able to cause arbitrary code
execution
Description: A memory consumption issue was addressed with improved
memory handling.
CVE-2020-3899: found by OSS-Fuzz

WebKit
Available for: Windows 10 and later via the Microsoft Store
Impact: Processing maliciously crafted web content may lead to a
cross site scripting attack
Description: An input validation issue was addressed with improved
input validation.
CVE-2020-3902: Yiğit Can YILMAZ (@yilmazcanyigit)

WebKit Page Loading
Available for: Windows 10 and later via the Microsoft Store
Impact: A file URL may be incorrectly processed
Description: A logic issue was addressed with improved restrictions.
CVE-2020-3885: Ryan Pickren (ryanpickren.com)

Additional recognition

WebKit
We would like to acknowledge Emilio Cobos Álvarez of Mozilla, Samuel
Groß of Google Project Zero, and an anonymous researcher for their
assistance.

Installation note:

iCloud for Windows 10.9.3 may be obtained from:
https://support.apple.com/HT204283
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