The iMac 'Core i3' 3.06 21.5-Inch Aluminum (Mid-2010) is powered by a dual core 3.06 GHz Intel 'Core i3' I3-540 (Clarkdale) processor with a dedicated 256k level 2 cache for each core and a 4 MB shared level 3 cache. In lieu of a system bus, it has a 'Direct Media Interface' (DMI) that 'connects between the processor and chipset' at 2.5 GT/s. Dec 11, 2020 If you want to check compatibility before downloading the installer, learn about the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also check compatible operating systems on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.
If you want to check compatibility before downloading the installer, learn about the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also check compatible operating systems on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro. Mac OS High Sierra launched with a few new features such as an enhanced Apple Photos with new capabilities and many security updates and fixes. There were also quite a few tweaks and fixes that made users want to get the latest Mac OS High Sierra download at the time. The Mac OS High Sierra release date was September 25, 2017. Alesis has provided the most current information about their hardware and software's compatibility with macOS 10.13 High Sierra in their article, macOS High Sierra 10.13 and iOS 11 Support for Alesis Products. A large number of Class-Compliant (do not require a driver) devices are compatible with 10.13 High Sierra.
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 High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan
Released December 6, 2017
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
Entry added June 21, 2018
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
Entry updated December 18, 2018
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)
Entry added October 18, 2018
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
Entry added January 22, 2018
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
Entry added October 18, 2018
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
Entry added January 22, 2018
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)
Entry added October 18, 2018
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
Entry added March 14, 2018
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
Best private browser android. CVE-2017-7155: Yu Wang of Didi Research America
Entry updated December 21, 2017
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)
Entry updated December 21, 2017
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
Entry updated January 10, 2018
Chrome 49 for ios. 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.
Entry added February 14, 2018
Kernel
Available for: macOS High Sierra 10.13.1
Impact: An application may be able to read kernel memory (Meltdown)
Description: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized 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)
Entry updated January 5, 2018
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
Entry updated December 21, 2017
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
Entry updated January 11, 2018
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 sanitization.
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 sanitization.
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
Entry added December 21, 2017
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
Entry updated December 21, 2017
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
Entry updated January 10, 2018
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 bugs 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
Entry added October 18, 2018
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.
Imac 11 2 High Sierra Vista
CVE-2017-7158: Trevor Jacques of Toronto
Entry updated December 21, 2017
Imac 11 2 High Sierra Madre
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
Entry updated August 8, 2018, updated September 25, 2018
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
Entry added May 2, 2018
Additional recognition
We would like to acknowledge Jon Bottarini of HackerOne for their assistance.
Entry added February 6, 2020
There is an earlier article by Dan Knight about CPU upgrades in the 2007 iMac that omits a few possible upgrades. This article is predominantly aimed at helping people get a 'Penryn' Core 2 Duo CPU into their Early 2007 iMac, as the chipset does allow several 'newer' CPU upgrades.
The primary purpose the newer 'Penryn' chips serve is not only an increase in performance, but also the added ability to run macOS 10.13 High Sierra. High Sierra requires a newer Mac by default, but it also requires SSE 4.2, which is not present in 2007 iMacs by default.
However, with the right CPU upgrades, High Sierra can be installed.
The chipset doesn't see the numbers just right, the 700 MHz is merely a misnomer, nothing more!
Original CPUs from 2007 iMacs
- 2.0 GHz Mid 2007 20″ iMac
- 2.4 GHz Mid 2007 20″and 24″ iMacs
- 2.8 GHz Core 2 Extreme Mid 2007 24″ iMac
Newer ‘Penryn' CPUs That 2007 iMacs Can Use
- T9300 2.5 GHz Core 2 Duo (~$15-20 on eBay at time of article)
- T9500 2.6 GHz Core 2 Duo (~$45-60 on eBay at time of article)
Note: These two are literally the same chips that are found in the Early 2008 MacBook Pro. The T8300 (2.4 GHz variant) and other T8xxx chips will not work in your 2007 iMac; only the two listed above, the T9300 and T9500. This is due to the chipset.
How to Install and Use Your New CPU
- I will not instruct you on how to take apart the iMac. There are plenty of guides on this, such as this one.
- Have your new T9300/T9500 CPU ready.
This is a picture of the T9500 I purchased and used, for reference.
Left, T9500 installed into socket. Right, original T7700 2.4 GHz CPU.
The Final Result
- After reassembling everything, the iMac chimes right away and has no issues booting up. This CPU upgrade should work just fine if you have Mac OS X 10.5.8 Leopard or newer installed (some revisions of Leopard came before the T9300/9500 CPUs were released, so let's not run that risk).
- If you're using a T9300, the system will misrepresent it as a 600 MHz CPU, and if it's a T9500 (like mine) it will show up as 700 MHz (the chipset can use the CPU but doesn't properly address it, because the CPUs we installed were made later than the chipset was)
- If the CPU 'MHz' bothers you, look below, and rest assured. I benched this, and it's legitimately quite a bit faster!
- You may also change up the info, by reading these instructions.
All in all, my iMac runs about 25% faster, and now that it has SSE 4.2, I can use Collin Mistr's patcher tool to install macOS 10.12 Sierra and later!
keywords: #highsierra #macoshighsierra
Ios 11.2
short link: https://goo.gl/o17SZL
High Sierra Imac
Related
