About the security content of macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite

This document describes the security content of macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.

Apple security documents reference vulnerabilities by CVE-ID when possible.

macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite

apache_mod_php

Available for: macOS Sierra 10.12.1

Impact: A remote attacker may cause an unexpected application termination or arbitrary code execution

Description: Multiple issues existed in PHP before 5.6.26. These were addressed by updating PHP to version 5.6.26.

CVE-2016-7411

CVE-2016-7412

CVE-2016-7413

CVE-2016-7414

CVE-2016-7416

CVE-2016-7417

CVE-2016-7418

AppleGraphicsPowerManagement

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to cause a system denial of service

Description: A null pointer dereference was addressed through improved input validation.

CVE-2016-7609: daybreaker@Minionz working with Trend Micro's Zero Day Initiative

Assets

Available for: macOS Sierra 10.12.1

Impact: A local attacker may modify downloaded mobile assets

Description: A permissions issue existed in mobile assets. This issue was addressed through improved access restrictions.

CVE-2016-7628: Marcel Bresink of Marcel Bresink Software-Systeme

Audio

Available for: macOS Sierra 10.12.1

Impact: Processing a maliciously crafted file may lead to arbitrary code execution

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7658: Haohao Kong of Keen Lab (@keen_lab) of Tencent

CVE-2016-7659: Haohao Kong of Keen Lab (@keen_lab) of Tencent

Bluetooth

Available for: macOS Sierra 10.12.1, OS X El Capitan v10.11.6, and OS X Yosemite v10.10.5

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed through improved memory handling.

CVE-2016-7596: Pekka Oikarainen, Matias Karhumaa and Marko Laakso of Synopsys Software Integrity Group

Bluetooth

Available for: macOS Sierra 10.12.1

Impact: An application may be able to cause a denial of service

Description: A null pointer dereference was addressed through improved input validation.

CVE-2016-7605: daybreaker of Minionz

Bluetooth

Available for: macOS Sierra 10.12.1

Impact: An application may be able to execute arbitrary code with system privileges

Description: A type confusion issue was addressed through improved memory handling.

CVE-2016-7617: Radu Motspan working with Trend Micro's Zero Day Initiative, Ian Beer of Google Project Zero

CoreCapture

Available for: macOS Sierra 10.12.1 and OS X El Capitan v10.11.6

Impact: A local user may be able to cause a system denial of service

Description: A null pointer dereference was addressed through improved state management.

CVE-2016-7604: daybreaker of Minionz

CoreFoundation

Available for: macOS Sierra 10.12.1

Impact: Processing malicious strings may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in the processing of strings. This issue was addressed through improved bounds checking.

CVE-2016-7663: an anonymous researcher

CoreGraphics

Available for: macOS Sierra 10.12.1

Impact: Processing a maliciously crafted font file may lead to unexpected application termination

Description: A null pointer dereference was addressed through improved input validation.

CVE-2016-7627: TRAPMINE Inc. & Meysam Firouzi @R00tkitSMM

CoreMedia External Displays

Available for: macOS Sierra 10.12.1

Impact: A local application may be able to execute arbitrary code in the context of the mediaserver daemon

Description: A type confusion issue was addressed through improved memory handling.

CVE-2016-7655: Keen Lab working with Trend Micro’s Zero Day Initiative

CoreMedia Playback

Available for: macOS Sierra 10.12.1

Impact: Processing a maliciously crafted .mp4 file may lead to arbitrary code execution

Description: A memory corruption issue was addressed through improved memory handling.

CVE-2016-7588: dragonltx of Huawei 2012 Laboratories

CoreStorage

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to cause a system denial of service

Description: A null pointer dereference was addressed through improved input validation.

CVE-2016-7603: daybreaker@Minionz working with Trend Micro's Zero Day Initiative

CoreText

Available for: macOS Sierra 10.12.1

Impact: Processing a maliciously crafted font file may lead to arbitrary code execution

Description: Multiple memory corruption issues existed in the handling of font files. These issues were addressed through improved bounds checking.

CVE-2016-7595: riusksk(泉哥) of Tencent Security Platform Department

CoreText

Available for: macOS Sierra 10.12.1

Impact: Processing a maliciously crafted string may lead to a denial of service

Description: An issue when rendering overlapping ranges was addressed through improved validation.

CVE-2016-7667: Nasser Al-Hadhrami (@fast_hack), Saif Al-Hinai (welcom_there) of Digital Unit (dgunit.com)

curl

Available for: macOS Sierra 10.12.1

Impact: An attacker in a privileged network position may be able to leak sensitive user information

Description: Multiple issues existed in curl. These issues were addressed by updating to curl version 7.51.0.

CVE-2016-5419

CVE-2016-5420

CVE-2016-5421

CVE-2016-7141

CVE-2016-7167

CVE-2016-8615

CVE-2016-8616

CVE-2016-8617

CVE-2016-8618

CVE-2016-8619

CVE-2016-8620

CVE-2016-8621

CVE-2016-8622

CVE-2016-8623

CVE-2016-8624

CVE-2016-8625

Directory Services

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to gain root privileges

Description: A use after free issue was addressed through improved memory management.

CVE-2016-7633: Ian Beer of Google Project Zero

Disk Images

Available for: macOS Sierra 10.12.1

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7616: daybreaker@Minionz working with Trend Micro's Zero Day Initiative

FontParser

Available for: macOS Sierra 10.12.1

Impact: Processing a maliciously crafted font file may lead to arbitrary code execution

Description: Multiple memory corruption issues existed in the handling of font files. These issues were addressed through improved bounds checking.

CVE-2016-4691: riusksk(泉哥) of Tencent Security Platform Department

Foundation

Available for: macOS Sierra 10.12.1

Impact: Opening a maliciously crafted .gcx file may lead to unexpected application termination or arbitrary code execution

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7618: riusksk(泉哥) of Tencent Security Platform Department

Grapher

Available for: macOS Sierra 10.12.1

Impact: Opening a maliciously crafted .gcx file may lead to unexpected application termination or arbitrary code execution

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7622: riusksk(泉哥) of Tencent Security Platform Department

ICU

Available for: macOS Sierra 10.12.1

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A memory corruption issue was addressed through improved memory handling.

CVE-2016-7594: André Bargull

ImageIO

Available for: macOS Sierra 10.12.1

Impact: A remote attacker may be able to leak memory

Description: An out-of-bounds read was addressed through improved bounds checking.

CVE-2016-7643: Yangkang (@dnpushme) of Qihoo360 Qex Team

Intel Graphics Driver

Available for: macOS Sierra 10.12.1

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7602: daybreaker@Minionz working with Trend Micro's Zero Day Initiative

IOFireWireFamily

Available for: macOS Sierra 10.12.1

Impact: A local attacker may be able to read kernel memory

Description: A memory corruption issue was addressed through improved memory handling.

CVE-2016-7608: Brandon Azad

IOAcceleratorFamily

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to determine kernel memory layout

Description: A shared memory issue was addressed through improved memory handling.

CVE-2016-7624 : Qidan He (@flanker_hqd) from KeenLab working with Trend Micro's Zero Day Initiative

IOHIDFamily

Available for: macOS Sierra 10.12.1

Impact: A local application with system privileges may be able to execute arbitrary code with kernel privileges

Description: A use after free issue was addressed through improved memory management.

CVE-2016-7591: daybreaker of Minionz

IOKit

Available for: macOS Sierra 10.12.1

Impact: An application may be able to read kernel memory

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7657: Keen Lab working with Trend Micro’s Zero Day Initiative

IOKit

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to determine kernel memory layout

Description: A shared memory issue was addressed through improved memory handling.

CVE-2016-7625: Qidan He (@flanker_hqd) from KeenLab working with Trend Micro's Zero Day Initiative

IOKit

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to determine kernel memory layout

Description: A shared memory issue was addressed through improved memory handling.

CVE-2016-7714: Qidan He (@flanker_hqd) from KeenLab working with Trend Micro's Zero Day Initiative

IOSurface

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to determine kernel memory layout

Description: A shared memory issue was addressed through improved memory handling.

CVE-2016-7620: Qidan He (@flanker_hqd) from KeenLab working with Trend Micro's Zero Day Initiative

Kernel

Available for: macOS Sierra 10.12.1

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: Multiple memory corruption issues were addressed through improved input validation.

CVE-2016-7606: @cocoahuke, Chen Qin of Topsec Alpha Team (topsec.com)

CVE-2016-7612: Ian Beer of Google Project Zero

Kernel

Available for: macOS Sierra 10.12.1

Impact: An application may be able to read kernel memory

Description: An insufficient initialization issue was addressed by properly initializing memory returned to user space.

CVE-2016-7607: Brandon Azad

Kernel

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to cause a system denial of service

Description: A denial of service issue was addressed through improved memory handling.

CVE-2016-7615: The UK's National Cyber Security Centre (NCSC)

Kernel

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to cause an unexpected system termination or arbitrary code execution in the kernel

Description: A use after free issue was addressed through improved memory management.

CVE-2016-7621: Ian Beer of Google Project Zero

Kernel

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to gain root privileges

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7637: Ian Beer of Google Project Zero

Kernel

Available for: macOS Sierra 10.12.1

Impact: A local application with system privileges may be able to execute arbitrary code with kernel privileges

Description: A use after free issue was addressed through improved memory management.

CVE-2016-7644: Ian Beer of Google Project Zero

Kernel

Available for: macOS Sierra 10.12.1

Impact: An application may be able to cause a denial of service

Description: A denial of service issue was addressed through improved memory handling.

CVE-2016-7647: Lufeng Li of Qihoo 360 Vulcan Team

kext tools

Available for: macOS Sierra 10.12.1

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7629: @cocoahuke

libarchive

Available for: macOS Sierra 10.12.1

Impact: A local attacker may be able to overwrite existing files

Description: A validation issue existed in the handling of symlinks. This issue was addressed through improved validation of symlinks.

CVE-2016-7619: an anonymous researcher

LibreSSL

Available for: macOS Sierra 10.12.1 and OS X El Capitan v10.11.6

Impact: An attacker with a privileged network position may be able to cause a denial of service

Description: A denial of service issue in unbounded OCSP growth was addressed through improved memory handling.

CVE-2016-6304

OpenLDAP

Available for: macOS Sierra 10.12.1

Impact: An attacker may be able to exploit weaknesses in the RC4 cryptographic algorithm

Description: RC4 was removed as a default cipher.

CVE-2016-1777: Pepi Zawodsky

OpenPAM

Available for: macOS Sierra 10.12.1

Impact: A local unprivileged user may gain access to privileged applications

Description: PAM authentication within sandboxed applications failed insecurely. This was addressed with improved error handling.

CVE-2016-7600: Perette Barella of DeviousFish.com

OpenSSL

Available for: macOS Sierra 10.12.1

Impact: An application may be able to execute arbitrary code

Description: An overflow issue existed in MDC2_Update(). This issue was addressed through improved input validation.

CVE-2016-6303

OpenSSL

Available for: macOS Sierra 10.12.1

Impact: An attacker with a privileged network position may be able to cause a denial of service

Description: A denial of service issue in unbounded OCSP growth was addressed through improved memory handling.

CVE-2016-6304

Power Management

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to gain root privileges

Description: An issue in mach port name references was addressed through improved validation.

CVE-2016-7661: Ian Beer of Google Project Zero

Security

Available for: macOS Sierra 10.12.1

Impact: An attacker may be able to exploit weaknesses in the 3DES cryptographic algorithm

Description: 3DES was removed as a default cipher.

CVE-2016-4693: Gaëtan Leurent and Karthikeyan Bhargavan from INRIA Paris

Security

Available for: macOS Sierra 10.12.1

Impact: An attacker in a privileged network position may be able to cause a denial of service

Description: A validation issue existed in the handling of OCSP responder URLs. This issue was addressed by verifying OCSP revocation status after CA validation and limiting the number of OCSP requests per certificate.

CVE-2016-7636: Maksymilian Arciemowicz (cxsecurity.com)

Security

Available for: macOS Sierra 10.12.1

Impact: Certificates may be unexpectedly evaluated as trusted

Description: A certificate evaluation issue existed in certificate validation. This issue was addressed through additional validation of certificates.

CVE-2016-7662: Apple

syslog

Available for: macOS Sierra 10.12.1

Impact: A local user may be able to gain root privileges

Description: An issue in mach port name references was addressed through improved validation.

CVE-2016-7660: Ian Beer of Google Project Zero

Wi-Fi

Available for: macOS Sierra 10.12.1

Impact: A malicious local user may be able to view sensitive network configuration information

Description: Network configuration was unexpectedly global. This issue was addressed by moving sensitive network configuration to per-user settings.

CVE-2016-7761: Peter Loos, Karlsruhe, Germany

xar

Available for: macOS Sierra 10.12.1

Impact: Opening a maliciously crafted archive may lead to arbitrary code execution

Description: The use of an uninitialized variable was addressed through improved validation.

CVE-2016-7742: Gareth Evans of Context Information Security