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APPLE-SA-2017-12-6-1 macOS High Sierra 10.13.2, Security Update
2017-002 Sierra, and Security Update 2017-005 El Capitan

macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and
Security Update 2017-005 El Capitan are now available and address
the following:

apache
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: Processing a maliciously crafted Apache configuration
directive may result in the disclosure of process memory
Description: Multiple issues were addressed by updating to
version 2.4.28.
CVE-2017-9798

curl
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: Malicious FTP servers may be able to cause the client to read
out-of-bounds memory
Description: An out-of-bounds read issue existed in the FTP PWD
response parsing. This issue was addressed with improved bounds
checking.
CVE-2017-1000254: Max Dymond

Directory Utility
Available for: macOS High Sierra 10.13 and macOS High Sierra 10.13.1
Not impacted: macOS Sierra 10.12.6 and earlier
Impact: An attacker may be able to bypass administrator
authentication without supplying the administrator’s password
Description: A logic error existed in the validation of credentials.
This was addressed with improved credential validation.
CVE-2017-13872

Intel Graphics Driver
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-13883: an anonymous researcher

Intel Graphics Driver
Available for: macOS High Sierra 10.13.1
Impact: A local user may be able to cause unexpected system
termination or read kernel memory
Description: An out-of-bounds read issue existed that led to the
disclosure of kernel memory. This was addressed through improved
input validation.
CVE-2017-13878: Ian Beer of Google Project Zero

Intel Graphics Driver
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to execute arbitrary code with
system privileges
Description: An out-of-bounds read was addressed through improved
bounds checking.
CVE-2017-13875: Ian Beer of Google Project Zero

IOAcceleratorFamily
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to execute arbitrary code with
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-13844: found by IMF developed by HyungSeok Han (daramg.gift)
of SoftSec, KAIST (softsec.kaist.ac.kr)

IOKit
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to execute arbitrary code with
system privileges
Description: An input validation issue existed in the kernel. This
issue was addressed through improved input validation.
CVE-2017-13848: Alex Plaskett of MWR InfoSecurity
CVE-2017-13858: an anonymous researcher

IOKit
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to execute arbitrary code with
system privileges
Description: Multiple memory corruption issues were addressed through
improved state management.
CVE-2017-13847: Ian Beer of Google Project Zero

Kernel
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-13862: Apple

Kernel
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to read restricted memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2017-13833: Brandon Azad

Kernel
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-13876: Ian Beer of Google Project Zero

Kernel
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to read restricted memory
Description: A type confusion issue was addressed with improved
memory handling.
CVE-2017-13855: Jann Horn of Google Project Zero

Kernel
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: A malicious application may be able to execute arbitrary
code with kernel privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-13867: Ian Beer of Google Project Zero

Kernel
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input
sanitization.
CVE-2017-13865: Ian Beer of Google Project Zero

Kernel
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input
sanitization.
CVE-2017-13868: Brandon Azad
CVE-2017-13869: Jann Horn of Google Project Zero

Mail
Available for: macOS High Sierra 10.13.1
Impact: A S/MIME encrypted email may be inadvertently sent
unencrypted if the receiver’s S/MIME certificate is not installed
Description: An inconsistent user interface issue was addressed with
improved state management.
CVE-2017-13871: an anonymous researcher

Mail Drafts
Available for: macOS High Sierra 10.13.1
Impact: An attacker with a privileged network position may be able to
intercept mail
Description: An encryption issue existed with S/MIME credetials. The
issue was addressed with additional checks and user control.
CVE-2017-13860: Michael Weishaar of INNEO Solutions GmbH

OpenSSL
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X
El Capitan 10.11.6
Impact: An application may be able to read restricted memory
Description: An out-of-bounds read issue existed in
X.509 IPAddressFamily parsing. This issue was addressed with improved
bounds checking.
CVE-2017-3735: found by OSS-Fuzz

Screen Sharing Server
Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6
Impact: A user with screen sharing access may be able to access any
file readable by root
Description: A permissions issue existed in the handling of screen
sharing sessions. This issue was addressed with improved permissions
handling.
CVE-2017-13826: Trevor Jacques of Toronto

Installation note:

macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and
Security Update 2017-005 El Capitan 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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