About Apple security updates

  1. Mac High Sierra Security Update
  2. Security Update For High Sierra

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 Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave

Released September 24, 2020

CoreAudio

Update

Available for: macOS Catalina 10.15

Hi i installed macOS High Sierra on my Desktop and it booted, most of the things worked. But in order to install NVIDIA Web Drivers i had to update to get a supported build. So i downloaded the updates (security,safari,itunes) and installed it. It updated successfully but now when i try to boot into macOS i get a Security Violation error. With the release of macOS Catalina 10.15.5 and related security updates for macOS Mojave and High Sierra earlier this week, Apple is making it more difficult for users to ignore available software.

Security Update 2020-006 for High Sierra Installing security updates with package installers is basically the same as using a combo update for MacOS updates. For what it’s worth, the Security Update 2020-006 packages were actually released a few days ago but largely went under the radar. Dec 01, 2020 Security Updates 2020-006 for macOS Mojave 10.14 (18G6042), High Sierra 10.13 (17G14042) & Safari 14.0.1 are now Available. With the release of macOS Big Sur, Apple also released Security Updates for both macOS Mojave and High Sierra.

Impact: Playing a malicious audio file may lead to arbitrary code execution

Description: A buffer overflow issue was addressed with improved memory handling.

CVE-2020-9954: Francis working with Trend Micro Zero Day Initiative, JunDong Xie of Ant Group Light-Year Security Lab

Entry added November 12, 2020

Find My

Available for: macOS Catalina 10.15

Impact: A malicious application may be able to read sensitive location information

Description: A file access issue existed with certain home folder files. This was addressed with improved access restrictions.

CVE-2020-9986: Tim Kornhuber, Milan Stute and Alexander Heinrich of TU Darmstadt, Secure Mobile Networking Lab

Entry added November 12, 2020

ImageIO

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15

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

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2020-9961: Xingwei Lin of Ant Security Light-Year Lab

Entry updated November 12, 2020

libxml2

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15

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

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

CVE-2020-9981: found by OSS-Fuzz

Entry added November 12, 2020, updated March 16, 2021

Mail

Available for: macOS High Sierra 10.13.6

Impact: A remote attacker may be able to unexpectedly alter application state

Description: This issue was addressed with improved checks.

Security update high sierra

CVE-2020-9941: Fabian Ising of FH Münster University of Applied Sciences and Damian Poddebniak of FH Münster University of Applied Sciences

Model I/O

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15

Mac High Sierra Security Update

Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution

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

CVE-2020-10011: Aleksandar Nikolic of Cisco Talos

CVE-2020-9973: Aleksandar Nikolic of Cisco Talos

Entry updated November 12, 2020

Model I/O

Available for: macOS Mojave 10.14.6, macOS Catalina 10.15

Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution

Description: An out-of-bounds write issue was addressed with improved bounds checking.

Security

CVE-2020-13520: Aleksandar Nikolic of Cisco Talos

Entry added November 12, 2020

Sandbox

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15

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

Description: A logic issue was addressed with improved restrictions.

CVE-2020-9968: Adam Chester(@_xpn_) of TrustedSec

Security Update For High Sierra

Entry updated November 12, 2020

Wi-Fi

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15

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

Description: A logic issue was addressed with improved state management.

CVE-2020-10013: Yu Wang of Didi Research America

Entry added March 16, 2021

Additional recognition

High

Bluetooth

We would like to acknowledge Andy Davis of NCC Group for their assistance.