About the security content of macOS Sierra 10.12

This document describes the security content of macOS Sierra 10.12.

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macOS Sierra 10.12

Released September 20, 2016

apache

Available for: OS X Lion v10.7.5 and later

Impact: A remote attacker may be able to proxy traffic through an arbitrary server

Description: An issue existed in the handling of the HTTP_PROXY environment variable. This issue was addressed by not setting the HTTP_PROXY environment variable from CGI.

CVE-2016-4694: Dominic Scheirlinck and Scott Geary of Vend

apache_mod_php

Available for: OS X Lion v10.7.5 and later

Impact: Multiple issues in PHP, the most significant of which may lead to unexpected application termination or arbitrary code execution.

Description: Multiple issues in PHP were addressed by updating PHP to version 5.6.24.

CVE-2016-5768

CVE-2016-5769

CVE-2016-5770

CVE-2016-5771

CVE-2016-5772

CVE-2016-5773

CVE-2016-6174

CVE-2016-6288

CVE-2016-6289

CVE-2016-6290

CVE-2016-6291

CVE-2016-6292

CVE-2016-6294

CVE-2016-6295

CVE-2016-6296

CVE-2016-6297

Apple HSSPI Support

Available for: OS X Lion v10.7.5 and later

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-2016-4697: Qidan He (@flanker_hqd) from KeenLab working with Trend Micro's Zero Day Initiative

AppleEFIRuntime

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4696: Shrek_wzw of Qihoo 360 Nirvan Team

AppleMobileFileIntegrity

Available for: OS X Lion v10.7.5 and later

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

Description: A validation issue existed in the task port inheritance policy. This issue was addressed through improved validation of the process entitlement and Team ID.

CVE-2016-4698: Pedro Vilaça

AppleUUC

Available for: OS X Lion v10.7.5 and later

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-2016-4699: Jack Tang (@jacktang310) and Moony Li of Trend Micro working with Trend Micro's Zero Day Initiative

CVE-2016-4700: Jack Tang (@jacktang310) and Moony Li of Trend Micro working with Trend Micro’s Zero Day Initiative

Application Firewall

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4701: Meder Kydyraliev Google Security Team

ATS

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4779: riusksk of Tencent Security Platform Department

Audio

Available for: OS X Lion v10.7.5 and later

Impact: A remote attacker may be able to execute arbitrary code

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

CVE-2016-4702: YoungJin Yoon, MinSik Shin, HoJae Han, Sunghyun Park, and Taekyoung Kwon of Information Security Lab, Yonsei University.

Bluetooth

Available for: OS X Lion v10.7.5 and later

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-2016-4703: Juwei Lin (@fuzzerDOTcn) of Trend Micro

cd9660

Available for: OS X Lion v10.7.5 and later

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

Description: An input validation issue was addressed through improved memory handling.

CVE-2016-4706: Recurity Labs on behalf of BSI (German Federal Office for Information Security)

CFNetwork

Available for: OS X Lion v10.7.5 and later

Impact: A local user may be able to discover websites a user has visited

Description: An issue existed in Local Storage deletion. This issue was addressed through improved Local Storage cleanup.

CVE-2016-4707: an anonymous researcher

CFNetwork

Available for: OS X Lion v10.7.5 and later

Impact: Processing maliciously crafted web content may compromise user information

Description: An input validation issue existed in the parsing of the set-cookie header. This issue was addressed through improved validation checking.

CVE-2016-4708: Dawid Czagan of Silesia Security Lab

CommonCrypto

Available for: OS X Lion v10.7.5 and later

Impact: An application using CCrypt may disclose sensitive plaintext if the output and input buffer are the same

Description: An input validation issue existed in corecrypto. This issue was addressed through improved input validation.

CVE-2016-4711: Max Lohrmann

CoreCrypto

Available for: OS X Lion v10.7.5 and later

Impact: An application may be able to execute arbitrary code

Description: An out-of-bounds write issue was addressed by removing the vulnerable code.

CVE-2016-4712: Gergo Koteles

CoreDisplay

Available for: OS X Lion v10.7.5 and later

Impact: A user with screen sharing access may be able to view another user's screen

Description: A session management issue existed in the handling of screen sharing sessions. This issue was addressed through improved session tracking.

CVE-2016-4713: Ruggero Alberti

curl

Available for: OS X Lion v10.7.5 and later

Impact: Multiple issues in curl

Description: Multiple security issues existed in curl prior to version 7.49.1. These issues were addressed by updating curl to version 7.49.1.

CVE-2016-0755: Isaac Boukris

Date & Time Pref Pane

Available for: OS X Lion v10.7.5 and later

Impact: A malicious application may be able to determine a user's current location

Description: An issue existed in the handling of the .GlobalPreferences file. This was addressed though improved validation.

CVE-2016-4715: Taiki (@Taiki__San) at ESIEA (Paris)

DiskArbitration

Available for: OS X Lion v10.7.5 and later

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

Description: An access issue existed in diskutil. This issue was addressed through improved permissions checking.

CVE-2016-4716: Alexander Allen of The North Carolina School of Science and Mathematics

File Bookmark

Available for: OS X Lion v10.7.5 and later

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

Description: A resource management issue existed in the handling of scoped bookmarks. This issue was addressed through improved file descriptor handling.

CVE-2016-4717: Tom Bradley of 71Squared Ltd

FontParser

Available for: OS X Lion v10.7.5 and later

Impact: Processing a maliciously crafted font may result in the disclosure of process memory

Description: A buffer overflow existed in the handling of font files. This issue was addressed through improved bounds checking.

CVE-2016-4718: Apple

IDS - Connectivity

Available for: OS X Lion v10.7.5 and later

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

Description: A spoofing issue existed in the handling of Call Relay. This issue was addressed through improved input validation.

CVE-2016-4722: Martin Vigo (@martin_vigo) of salesforce.com

ImageIO

Available for: OS X Lion v10.7.5 and later

Impact: Processing maliciously crafted image may result in the disclosure of process memory

Description: An out-of-bounds read issue existed in the SGI image parsing. This issue was addressed through improved bounds checking.

CVE-2016-4682: Ke Liu of Tencent's Xuanwu Lab

Entry added October 24, 2016

Intel Graphics Driver

Available for: OS X Lion v10.7.5 and later

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

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2016-4723: daybreaker of Minionz

Intel Graphics Driver

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-7582: Liang Chen of Tencent KeenLab

Entry added November 14, 2016

IOAcceleratorFamily

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4724: Cererdlong, Eakerqiu of Team OverSky

IOAcceleratorFamily

Available for: OS X Lion v10.7.5 and later

Impact: Processing maliciously crafted web content may result in the disclosure of process memory

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

CVE-2016-4725: Rodger Combs of Plex, Inc

IOAcceleratorFamily

Available for: OS X Lion v10.7.5 and later

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-2016-4726: an anonymous researcher

IOThunderboltFamily

Available for: OS X Lion v10.7.5 and later

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-2016-4727: wmin working with Trend Micros Zero Day Initiative

Kerberos v5 PAM module

Available for: OS X Lion v10.7.5 and later

Impact: A remote attacker may determine the existence of user accounts

Description: A timing side channel allowed an attacker to determine the existence of user accounts on a system. This issue was addressed by introducing constant time checks.

CVE-2016-4745: an anonymous researcher

Kernel

Available for: OS X Lion v10.7.5 and later

Impact: A local application may be able to access restricted files

Description: A parsing issue in the handling of directory paths was addressed through improved path validation.

CVE-2016-4771: Balazs Bucsay, Research Director of MRG Effitas

Kernel

Available for: OS X Lion v10.7.5 and later

Impact: A remote attacker may be able to cause a denial of service

Description: A lock handling issue was addressed through improved lock handling.

CVE-2016-4772: Marc Heuse of mh-sec

Kernel

Available for: OS X Lion v10.7.5 and later

Impact: An application may be able to determine kernel memory layout

Description: Multiple out-of-bounds read issues existed that led to the disclosure of kernel memory. These were addressed through improved input validation.

CVE-2016-4773: Brandon Azad

CVE-2016-4774: Brandon Azad

CVE-2016-4776: Brandon Azad

Kernel

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4775: Brandon Azad

Kernel

Available for: OS X Lion v10.7.5 and later

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

Description: An untrusted pointer dereference was addressed by removing the affected code.

CVE-2016-4777: Lufeng Li of Qihoo 360 Vulcan Team

Kernel

Available for: OS X Lion v10.7.5 and later

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

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2016-4778: CESG

libarchive

Available for: OS X Lion v10.7.5 and later

Impact: Multiple issues in libarchive

Description: Multiple memory corruption issues existed in libarchive. These issues were addressed through improved input validation.

CVE-2016-4736: Proteas of Qihoo 360 Nirvan Team

libxml2

Available for: OS X Lion v10.7.5 and later

Impact: Multiple issues in libxml2, the most significant of which may lead to unexpected application termination or arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2016-4658: Nick Wellnhofer

CVE-2016-5131: Nick Wellnhofer

libxpc

Available for: OS X Lion v10.7.5 and later

Impact: An application may be able to break out of its sandbox

Description: Multiple weaknesses existed with spawning new processes using launchctl. These issues were addressed through improved policy enforcement.

CVE-2016-4617: Gregor Kopf of Recurity Labs on behalf of BSI (German Federal Office for Information Security)

Entry added October 24, 2016

libxslt

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4738: Nick Wellnhofer

Mail

Available for: OS X Lion v10.7.5 and later

Impact: A malicious website may be able to cause a denial-of-service

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

CVE-2016-7580: Sabri Haddouche (@pwnsdx)

Entry added December 1, 2016

mDNSResponder

Available for: OS X Lion v10.7.5 and later

Impact: A remote attacker may be able to view sensitive information

Description: Applications using VMnet.framework enabled a DNS proxy listening on all network interfaces. This issue was addressed by restricting DNS query responses to local interfaces.

CVE-2016-4739: Magnus Skjegstad, David Scott and Anil Madhavapeddy from Docker, Inc.

NSSecureTextField

Available for: OS X Lion v10.7.5 and later

Impact: A malicious application may be able to leak a user's credentials

Description: A state management issue existed in NSSecureTextField, which failed to enable Secure Input. This issue was addressed through improved window management.

CVE-2016-4742: Rick Fillion of AgileBits, Daniel Jalkut of Red Sweater Software

Perl

Available for: OS X Lion v10.7.5 and later

Impact: A local user may be able to bypass the taint protection mechanism

Description: An issue existed in the parsing of environment variables. This issue was addressed through improved validation of environment variables.

CVE-2016-4748: Stephane Chazelas

S2 Camera

Available for: OS X Lion v10.7.5 and later

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-2016-4750: Jack Tang (@jacktang310) and Moony Li of Trend Micro working with Trend Micro’s Zero Day Initiative

Security

Available for: OS X Lion v10.7.5 and later

Impact: An application using SecKeyDeriveFromPassword may leak memory

Description: A resource management issue existed in the handling of key derivation. This issue was addressed by adding CF_RETURNS_RETAINED to SecKeyDeriveFromPassword.

CVE-2016-4752: Mark Rogers of PowerMapper Software

Security

Available for: OS X Lion v10.7.5 and later

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

Description: A validation issue existed in signed disk images. This issue was addressed through improved size validation.

CVE-2016-4753: Mark Mentovai of Google Inc.

Terminal

Available for: OS X Lion v10.7.5 and later

Impact: A local user may be able to leak sensitive user information

Description: A permissions issue existed in .bash_history and .bash_session. This issue was addressed through improved access restrictions.

CVE-2016-4755: Axel Luttgens

WindowServer

Available for: OS X Lion v10.7.5 and later

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

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

CVE-2016-4709: an anonymous researcher working with Trend Micro's Zero Day Initiative

CVE-2016-4710: an anonymous researcher working with Trend Micro's Zero Day Initiative

Entry updated November 15, 2016

macOS Sierra 10.12 includes the security content of Safari 10.

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