About the security content of macOS High Sierra 10.13.2, Security Update 2017-002 Sierra and Security Update 2017-005 El Capitan
This document describes the security content of macOS High Sierra 10.13.2, Security Update 2017-002 Sierra and Security Update 2017-005 El Capitan.
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Apple security documents reference vulnerabilities by CVE-ID when possible.
macOS High Sierra 10.13.2, Security Update 2017-002 Sierra and Security Update 2017-005 El Capitan
APFS
Available for: macOS High Sierra 10.13.1
Impact: APFS encryption keys may not be securely deleted after hibernating
Description: A logic issue existed in APFS when deleting keys during hibernation. This was addressed with improved state management.
CVE-2017-13887: David Ryskalczyk
apache
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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: Hanno Böck
Auto Unlock
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to gain elevated privileges
Description: A race condition was addressed with additional validation.
CVE-2017-13905: Samuel Groß (@5aelo)
CFNetwork Session
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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-2017-7172: Richard Zhu (fluorescence) working with Trend Micro's Zero Day Initiative
Contacts
Available for: macOS High Sierra 10.13.1
Impact: Sharing contact information may lead to unexpected data sharing
Description: An issue existed in the handling of Contact sharing. This issue was addressed with improved handling of user information.
CVE-2017-13892: Ryan Manly of Glenbrook High School District 225
CoreAnimation
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to execute arbitrary code with elevated privileges
Description: A memory corruption issue was addressed with improved memory handling.
CVE-2017-7171: 360 Security working with Trend Micro's Zero Day Initiative, and Tencent Keen Security Lab (@keen_lab) working with Trend Micro's Zero Day Initiative
CoreFoundation
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to gain elevated privileges
Description: A race condition was addressed with additional validation.
CVE-2017-7151: Samuel Groß (@5aelo)
curl
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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 Sierra 10.12.6, 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
ICU
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
Impact: An application may be able to read restricted memory
Description: An integer overflow was addressed through improved input validation.
CVE-2017-15422: Yuan Deng of Ant-financial Light-Year Security Lab
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: Yu Wang of Didi Research America
CVE-2017-7163: Yu Wang of Didi Research America
CVE-2017-7155: Yu Wang of Didi Research America
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: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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-2017-7159: 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: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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
IOKit
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, 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-2017-7162: Tencent Keen Security Lab (@keen_lab) working with Trend Micro's Zero Day Initiative
Kernel
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, 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-2017-13904: Kevin Backhouse of Semmle Ltd.
Kernel
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to read kernel memory (Meltdown)
Description: Systems with microprocessors utilising speculative execution and indirect branch prediction may allow unauthorised disclosure of information to an attacker with local user access via a side-channel analysis of the data cache.
CVE-2017-5754: Jann Horn of Google Project Zero; Moritz Lipp of Graz University of Technology; Michael Schwarz of Graz University of Technology; Daniel Gruss of Graz University of Technology; Thomas Prescher of Cyberus Technology GmbH; Werner Haas of Cyberus Technology GmbH; Stefan Mangard of Graz University of Technology; Paul Kocher; Daniel Genkin of University of Pennsylvania and University of Maryland; Yuval Yarom of University of Adelaide and Data61; and Mike Hamburg of Rambus (Cryptography Research Division)
Kernel
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, 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-2017-13862: Apple
CVE-2017-13867: Ian Beer of Google Project Zero
Kernel
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
Impact: An application may be able to read restricted memory
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2017-7173: 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: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input sanitisation.
CVE-2017-13865: Ian Beer of Google Project Zero
Kernel
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, 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 sanitisation.
CVE-2017-13868: Brandon Azad
CVE-2017-13869: Jann Horn of Google Project Zero
Kernel
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
Impact: A local user may be able to cause unexpected system termination or read kernel memory
Description: An input validation issue existed in the kernel. This issue was addressed through improved input validation.
CVE-2017-7154: Jann Horn of Google Project Zero
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: Lukas Pitschl of GPGTools
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 credentials. The issue was addressed with additional checks and user control.
CVE-2017-13860: Michael Weishaar of INNEO Solutions GmbH
OpenSSL
Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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
Perl
Available for: macOS Sierra 10.12.6
Impact: This bug can allow remote attackers to cause a denial of service
Description: Public CVE-2017-12837 was addressed by updating the function in Perl 5.18
CVE-2017-12837: Jakub Wilk
Screen Sharing Server
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.1
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-2017-7158: Trevor Jacques of Toronto
SIP
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A configuration issue was addressed with additional restrictions.
CVE-2017-13911: Timothy Perfitt of Twocanoes Software
Wi-Fi
Available for: macOS High Sierra 10.13.1
Impact: An unprivileged user may change Wi-Fi system parameters leading to denial of service
Description: An access issue existed with privileged Wi-Fi system configuration. This issue was addressed with additional restrictions.
CVE-2017-13886: David Kreitschmann and Matthias Schulz of Secure Mobile Networking Lab at TU Darmstadt
Additional recognition
We would like to acknowledge Jon Bottarini of HackerOne for their assistance.
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