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APPLE-SA-2018-06-01-2 Safari 11.1.1

Safari 11.1.1 is now available and addresses the following:

Safari
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: A malicious website may be able to cause a denial of service
Description: A denial of service issue was addressed with improved
validation.
CVE-2018-4247: FranASSois Renaud, Jesse Viviano of Verizon Enterprise
Solutions

Safari
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Visiting a malicious website may lead to address bar spoofing
Description: An inconsistent user interface issue was addressed with
improved state management.
CVE-2018-4205: xisigr of Tencent's Xuanwu Lab (tencent.com)

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Visiting a maliciously crafted website may lead to cookies
being overwritten
Description: A permissions issue existed in the handling of web
browser cookies. This issue was addressed with improved restrictions.
CVE-2018-4232: an anonymous researcher, Aymeric Chaib

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A type confusion issue was addressed with improved
memory handling.
CVE-2018-4246: found by OSS-Fuzz

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A race condition was addressed with improved locking.
CVE-2018-4192: Markus Gaasedelen, Nick Burnett, and Patrick Biernat
of Ret2 Systems, Inc working with Trend Micro's Zero Day Initiative

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Processing maliciously crafted web content may lead to an
unexpected Safari crash
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2018-4214: found by OSS-Fuzz

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Visiting a malicious website may lead to address bar spoofing
Description: An inconsistent user interface issue was addressed with
improved state management.
CVE-2018-4188: YoKo Kho (@YoKoAcc) of Mitra Integrasi Informatika, PT

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2018-4201: an anonymous researcher
CVE-2018-4218: Natalie Silvanovich of Google Project Zero
CVE-2018-4233: Samuel GroA (@5aelo) working with Trend Micro's Zero
Day Initiative

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A buffer overflow issue was addressed with improved
memory handling.
CVE-2018-4199: Alex Plaskett, Georgi Geshev, Fabi Beterke, and Nils
of MWR Labs working with Trend Micro's Zero Day Initiative

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Visiting a maliciously crafted website may leak sensitive
data
Description: Credentials were unexpectedly sent when fetching CSS
mask images. This was addressed by using a CORS-enabled fetch method.
CVE-2018-4190: Jun Kokatsu (@shhnjk)

WebKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and
macOS High Sierra 10.13.4
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2018-4222: Natalie Silvanovich of Google Project Zero

Installation note:

Safari 11.1.1 may be obtained from the Mac App Store.

Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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