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APPLE-SA-2020-03-24-5 Safari 13.1

Safari 13.1 is now available and addresses the following:

Safari Downloads
Available for: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
Impact: A malicious iframe may use another website’s download
settings
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9784: Ruilin Yang of Tencent Security Xuanwu Lab, Ryan
Pickren (ryanpickren.com)

WebKit
Available for: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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: macOS Mojave and macOS High Sierra, and included in
macOS Catalina
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

Safari
We would like to acknowledge Dlive of Tencent Security Xuanwu Lab,
Jacek Kolodziej of Procter & Gamble, and Justin Taft of One Up
Security, LLC for their assistance.

Safari Extensions
We would like to acknowledge Jeff Johnson of underpassapp.com for
their assistance.

Safari Reader
We would like to acknowledge Nikhil Mittal (@c0d3G33k) of Payatu Labs
(payatu.com) for their assistance.

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:

Safari 13.1 may be obtained from the Mac App Store.
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