Mac Os Update 2019
macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy.
Testing conducted by Apple in October 2019 using preproduction 2.3GHz 8-core Intel Core i9-based 16-inch MacBook Pro systems with 16GB of RAM and 1TB SSD. The wireless web test measures battery life by wirelessly browsing 25 popular websites with display brightness set to 12 clicks from bottom or 75%. When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date. That includes Safari, Music, Photos, Books, Messages, Mail, Calendar, and FaceTime.
How to Install MacOS Catalina on Unsupported Macs. Your OS took an update and broke the efi with updated system files. Replace the system files with the patched ones that were there previously and it may boot again depending on the changes made by the update that was administered.
Check compatibility
macOS Big Sur is compatible with these computers:
MacBook introduced in 2015 or later
MacBook Air introduced in 2013 or later
MacBook Pro introduced in late 2013 or later
Mac mini introduced in 2014 or later
iMac introduced in 2014 or later
iMac Pro
Mac Pro introduced in 2013 or later
View the complete list of compatible computers.
If upgrading from macOS Sierra or later, macOS Big Sur requires 35.5GB of available storage to upgrade. If upgrading from an earlier release, macOS Big Sur requires up to 44.5GB of available storage. To upgrade from OS X Mountain Lion, first upgrade to OS X El Capitan, then upgrade to macOS Big Sur.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Big Sur
If you're using macOS Mojave or later, get macOS Big Sur via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Or use this link to open the macOS Big Sur page on the App Store: Get macOS Big Sur. Then click the Get button or iCloud download icon.
Begin installation
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Mac Os Update 10.12.6
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Stay up to date
After installing macOS Big Sur, you will be notified when updates to macOS Big Sur are available. You can also use Software Update to check for updates: Choose Apple menu > System Preferences, then click Software Update.
Or get macOS Big Sur automatically
If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Big Sur will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Big Sur is ready to be installed. Click Install to get started, or dismiss the notification to install later. When you're ready to install, just open the file named Install macOS Big Sur from your Applications folder.
Learn more
- If the installer shows a list of apps that are not optimized for your Mac, learn about 32-bit app compatibility, then choose whether to proceed with the installation.
- For the strongest security and latest features, upgrade to macOS Big Sur. If you have hardware or software that isn't compatible with Big Sur, you might be able to install an earlier macOS.
- You can also use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.
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.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra
Released May 13, 2019
Accessibility Framework
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.4
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input sanitization.
CVE-2019-8603: Phoenhex and qwerty (@_niklasb, @qwertyoruiopz, @bkth_) working with Trend Micro's Zero Day Initiative
AMD
Available for: macOS Mojave 10.14.4
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-2019-8635: Lilang Wu and Moony Li of TrendMicro Mobile Security Research Team working with Trend Micro's Zero Day Initiative
Application Firewall
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.4
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A logic issue was addressed with improved restrictions.
CVE-2019-8590: The UK’s National Cyber Security Centre (NCSC)
Archive Utility
Available for: macOS Mojave 10.14.4
Impact: A sandboxed process may be able to circumvent sandbox restrictions
Description: A logic issue was addressed with improved validation.
CVE-2019-8640: Ash Fox of Fitbit Product Security
Entry added August 1, 2019
Bluetooth
Available for: macOS Mojave 10.14.4
Impact: Due to a misconfiguration in the Bluetooth pairing protocols of a Bluetooth Low Energy (BLE) version of FIDO Security Keys it may be possible for an attacker with physical proximity to be able to intercept Bluetooth traffic during pairing
Description: This issue was addressed by disabling accessories with insecure Bluetooth connections. Customers using the Bluetooth Low Energy (BLE) version of the Titan Security Key by Google should review Android’s June Bulletins and Google’s advisory and take appropriate action.
CVE-2019-2102: Matt Beaver and Erik Peterson of Microsoft Corp.
Entry added September 17, 2019
CoreAudio
Available for: macOS Sierra 10.12.6, macOS Mojave 10.14.4, macOS High Sierra 10.13.6
Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution
Description: A memory corruption issue was addressed with improved error handling.
CVE-2019-8592: riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative
Entry updated October 8, 2019
CoreAudio
Available for: macOS Mojave 10.14.4
Impact: Processing a maliciously crafted movie file may lead to arbitrary code execution
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2019-8585: riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative
CoreText
Available for: macOS Mojave 10.14.4
Impact: Processing a maliciously crafted font may result in the disclosure of process memory
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2019-8582: riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative
Entry added July 25, 2019
DesktopServices
Available for: macOS Mojave 10.14.4
Impact: A malicious application may bypass Gatekeeper checks
Description: This issue was addressed with improved checks.
CVE-2019-8589: Andreas Clementi, Stefan Haselwanter, and Peter Stelzhammer of AV-Comparatives
Disk Images
Available for: macOS Sierra 10.12.6, macOS Mojave 10.14.4, macOS High Sierra 10.13.6
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input sanitization.
CVE-2019-8560: Nikita Pupyshev of Bauman Moscow State Technological University
Entry updated May 14, 2019
EFI
Available for: macOS Mojave 10.14.4
Impact: A user may be unexpectedly logged in to another user’s account
Description: An authentication issue was addressed with improved state management.
CVE-2019-8634: Jenny Sprenger and Maik Hoepfel
Intel Graphics Driver
Available for: macOS Mojave 10.14.4
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-2019-8616: Lilang Wu and Moony Li of Trend Micro Mobile Security Research Team working with Trend Micro's Zero Day Initiative
Intel Graphics Driver
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.4
Impact: An application may be able to execute arbitrary code with system privileges
Description: A memory initialization issue was addressed with improved memory handling.
CVE-2019-8629: Arash Tohidi of Solita Oy
IOAcceleratorFamily
Available for: macOS High Sierra 10.13.6
Mac Os Update 2019
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-2018-4456: Tyler Bohan of Cisco Talos
IOKit
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.4
Impact: A local user may be able to load unsigned kernel extensions
Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks.
CVE-2019-8606: Phoenhex and qwerty (@_niklasb, @qwertyoruiopz, @bkth_) working with Trend Micro's Zero Day Initiative
Kernel
Available for: macOS Mojave 10.14.4, macOS High Sierra 10.13.6
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input sanitization.
CVE-2019-8633: Zhuo Liang of Qihoo 360 Vulcan Team
Entry added July 25, 2019, updated September 17, 2019
Kernel
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue was addressed with improved state management.
CVE-2019-8525: Zhuo Liang and shrek_wzw of Qihoo 360 Nirvan Team
Entry added May 14, 2019
Kernel
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6
Impact: A remote attacker may be able to leak memory
Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.
CVE-2019-8547: derrek (@derrekr6)
Entry added May 14, 2019
Kernel
Available for: macOS Mojave 10.14.4
Impact: A local user may be able to cause unexpected system termination or read kernel memory
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2019-8576: Brandon Azad of Google Project Zero, Junho Jang and Hanul Choi of LINE Security Team
Entry updated May 30, 2019
Kernel
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.4
Impact: An application may be able to cause unexpected system termination or write kernel memory
Description: A type confusion issue was addressed with improved memory handling.
CVE-2019-8591: Ned Williamson working with Google Project Zero
Messages
Available for: macOS Mojave 10.14.4
Impact: A remote attacker may be able to cause a system denial of service
Description: An input validation issue was addressed with improved input validation.
CVE-2019-8573: Natalie Silvanovich of Google Project Zero
Entry added July 3, 2019
Messages
Available for: macOS Mojave 10.14.4
Impact: Users removed from an iMessage conversation may still be able to alter state
Description: A logic issue was addressed with improved state management.
CVE-2019-8631: Jamie Bishop of Dynastic
Entry added August 1, 2019
Microcode
Available for: macOS Mojave 10.14.4
Impact: Load ports, fill buffers, and store buffers in systems with microprocessors utilizing speculative execution may allow an attacker with local user access to potentially enable information disclosure via a side channel
Description: Multiple information disclosure issues were addressed partially by updating the microcode and changing the OS scheduler to isolate the system from web content running in the browser. To completely address these issues, there are additional opt-in mitigations to disable hyper threading and enable microcode-based mitigations for all processes by default. Details of the mitigations can be found at https://support.apple.com/kb/HT210107.
CVE-2018-12126: Ke Sun, Henrique Kawakami, Kekai Hu, and Rodrigo Branco from Intel; Lei Shi - Qihoo 360 CERT; Marina Minkin; Daniel Genkin from University of Michigan; and Yuval Yarom from University of Adelaide
CVE-2018-12127: Brandon Falk from Microsoft Windows Platform Security Team; and Ke Sun, Henrique Kawakami, Kekai Hu, and Rodrigo Branco from Intel
CVE-2018-12130: Giorgi Maisuradze from Microsoft Research; Ke Sun, Henrique Kawakami, Kekai Hu, and Rodrigo Branco from Intel; Moritz Lipp, Michael Schwarz, and Daniel Gruss from Graz University of Technology; Stephan van Schaik, Alyssa Milburn, Sebastian Osterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida from VUSec group at VU Amsterdam; Volodymyr Pikhur; and Dan Horea Lutas from BitDefender
CVE-2019-11091: Ke Sun, Henrique Kawakami, Kekai Hu, and Rodrigo Branco from Intel; and Moritz Lipp, Michael Schwarz, and Daniel Gruss from Graz University of Technology
Entry added May 14, 2019
Security
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.4
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-2019-8604: Fluoroacetate working with Trend Micro's Zero Day Initiative
SQLite
Available for: macOS Mojave 10.14.4
Impact: An application may be able to gain elevated privileges
Description: An input validation issue was addressed with improved memory handling.
CVE-2019-8577: Omer Gull of Checkpoint Research
SQLite
Available for: macOS Mojave 10.14.4
Impact: A maliciously crafted SQL query may lead to arbitrary code execution
Description: A memory corruption issue was addressed with improved input validation.
CVE-2019-8600: Omer Gull of Checkpoint Research
SQLite
Available for: macOS Mojave 10.14.4
Impact: A malicious application may be able to read restricted memory
Description: An input validation issue was addressed with improved input validation.
CVE-2019-8598: Omer Gull of Checkpoint Research
SQLite
Available for: macOS Mojave 10.14.4
Impact: A malicious application may be able to elevate privileges
Description: A memory corruption issue was addressed by removing the vulnerable code.
CVE-2019-8602: Omer Gull of Checkpoint Research
StreamingZip
Available for: macOS Mojave 10.14.4
Impact: A local user may be able to modify protected parts of the file system
Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks.
CVE-2019-8568: Dany Lisiansky (@DanyL931)
sysdiagnose
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.4
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-2019-8574: Dayton Pidhirney (@_watbulb) of Seekintoo (@seekintoo)
Touch Bar Support
Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6
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-2019-8569: Viktor Oreshkin (@stek29)
WebKit
Available for: macOS Mojave 10.14.4
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
CVE-2019-6237: G. Geshev working with Trend Micro Zero Day Initiative, Liu Long of Qihoo 360 Vulcan Team
CVE-2019-8571: 01 working with Trend Micro's Zero Day Initiative
CVE-2019-8583: sakura of Tencent Xuanwu Lab, jessica (@babyjess1ca_) of Tencent Keen Lab, and dwfault working at ADLab of Venustech
CVE-2019-8584: G. Geshev of MWR Labs working with Trend Micro Zero Day Initiative
CVE-2019-8586: an anonymous researcher
CVE-2019-8587: G. Geshev working with Trend Micro Zero Day Initiative
CVE-2019-8594: Suyoung Lee and Sooel Son of KAIST Web Security & Privacy Lab and HyungSeok Han and Sang Kil Cha of KAIST SoftSec Lab
CVE-2019-8595: G. Geshev from MWR Labs working with Trend Micro Zero Day Initiative
CVE-2019-8596: Wen Xu of SSLab at Georgia Tech
CVE-2019-8597: 01 working with Trend Micro Zero Day Initiative
CVE-2019-8601: Fluoroacetate working with Trend Micro's Zero Day Initiative
CVE-2019-8608: G. Geshev working with Trend Micro Zero Day Initiative
CVE-2019-8609: Wen Xu of SSLab, Georgia Tech
CVE-2019-8610: Anonymous working with Trend Micro Zero Day Initiative
CVE-2019-8611: Samuel Groß of Google Project Zero
CVE-2019-8615: G. Geshev from MWR Labs working with Trend Micro's Zero Day Initiative
CVE-2019-8619: Wen Xu of SSLab at Georgia Tech and Hanqing Zhao of Chaitin Security Research Lab
CVE-2019-8622: Samuel Groß of Google Project Zero
CVE-2019-8623: Samuel Groß of Google Project Zero
CVE-2019-8628: Wen Xu of SSLab at Georgia Tech and Hanqing Zhao of Chaitin Security Research Lab
WebKit
Available for: macOS Mojave 10.14.4
Impact: Processing maliciously crafted web content may result in the disclosure of process memory
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2019-8607: Junho Jang and Hanul Choi of LINE Security Team
Wi-Fi
Available for: macOS Mojave 10.14.4
Impact: An attacker in a privileged network position can modify driver state
Description: A logic issue was addressed with improved state management.
CVE-2019-8612: Milan Stute of Secure Mobile Networking Lab at Technische Universität Darmstadt
Entry added May 14, 2019
Additional recognition
CoreAudio
We would like to acknowledge riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative for their assistance.
Entry added July 25, 2019
CoreFoundation
We would like to acknowledge m4bln, Xiangqian Zhang, Huiming Liu of Tencent's Xuanwu Lab, Vozzie, and Rami for their assistance.
Entry updated May 14, 2019
Kernel
We would like to acknowledge Denis Kopyrin for their assistance.
Entry updated May 14, 2019
PackageKit
We would like to acknowledge Csaba Fitzl (@theevilbit) for their assistance.
Safari
We would like to acknowledge Michael Ball of Gradescope by Turnitin for their assistance.
System Preferences
We would like to acknowledge an anonymous researcher for their assistance.