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APPLE-SA-2018-05-08-1 Additional information for
APPLE-SA-2018-04-24-2 Security Update 2018-001

Security Update 2018-001 addresses the following:

Crash Reporter
Available for: macOS High Sierra 10.13.4
Impact: An application may be able to gain elevated privileges
Description: A memory corruption issue was addressed with improved
error handling.
CVE-2018-4206: Ian Beer of Google Project Zero

Kernel
Available for: macOS High Sierra 10.13.4
Impact: A malicious application may be able to execute arbitrary
code with kernel privileges
Description: In some circumstances, some operating systems may not
expect or properly handle an Intel architecture debug exception
after certain instructions. The issue appears to be from an
undocumented side effect of the instructions. An attacker might
utilize this exception handling to gain access to Ring 0 and access
sensitive memory or control operating system processes.
CVE-2018-8897: Andy Lutomirski, Nick Peterson
(linkedin.com/in/everdox) of Everdox Tech LLC
Entry added May 8, 2018

LinkPresentation
Available for: macOS High Sierra 10.13.4
Impact: Processing a maliciously crafted text message may lead to UI
spoofing
Description: A spoofing issue existed in the handling of URLs. This
issue was addressed with improved input validation.
CVE-2018-4187: Zhiyang Zeng (@Wester) of Tencent Security
Platform Department, Roman Mueller (@faker_)

Installation note:

Security Update 2018-001 may be obtained from the Mac App Store or
Apple's Software Downloads web site:
https://support.apple.com/downloads/

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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