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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.

Released July 15, 2020

Audio

Available for: macOS Catalina 10.15.5

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

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

CVE-2020-9884: Yu Zhou(@yuzhou6666) of 小鸡帮 working with Trend Micro Zero Day Initiative

CVE-2020-9889: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

Audio

Available for: macOS Catalina 10.15.5

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

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

CVE-2020-9888: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

CVE-2020-9890: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

CVE-2020-9891: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

Clang

Available for: macOS Catalina 10.15.5

Impact: Clang may generate machine code that does not correctly enforce pointer authentication codes

Description: A logic issue was addressed with improved validation.

CVE-2020-9870: Samuel Groß of Google Project Zero

CoreAudio

Available for: macOS High Sierra 10.13.6

Impact: A buffer overflow may result in arbitrary code execution

Description: A buffer overflow was addressed with improved bounds checking.

CVE-2020-9866: Yu Zhou of 小鸡帮 and Jundong Xie of Ant-financial Light-Year Security Lab

CoreFoundation

Available for: macOS Catalina 10.15.5

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

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

CVE-2020-9934: an anonymous researcher

Crash Reporter

Available for: macOS Catalina 10.15.5

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

Description: A memory corruption issue was addressed by removing the vulnerable code.

CVE-2020-9865: Zhuo Liang of Qihoo 360 Vulcan Team working with 360 BugCloud

Graphics Drivers

Available for: macOS Catalina 10.15.5

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

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

CVE-2020-9799: ABC Research s.r.o.

Heimdal

Available for: macOS Catalina 10.15.5

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

Description: This issue was addressed with improved data protection.

CVE-2020-9913: Cody Thomas of SpecterOps

ImageIO

Available for: macOS Catalina 10.15.5

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

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

CVE-2020-9936: Mickey Jin of Trend Micro

Kernel

Available for: macOS Catalina 10.15.5

Impact: An attacker in a privileged network position may be able to inject into active connections within a VPN tunnel

Description: A routing issue was addressed with improved restrictions.

CVE-2019-14899: William J. Tolley, Beau Kujath, and Jedidiah R. Crandall

Mail

Available for: macOS Catalina 10.15.5

Impact: A remote attacker can cause a limited out-of-bounds write, resulting in a denial of service

Description: An input validation issue was addressed.

CVE-2019-19906

Messages

Available for: macOS Catalina 10.15.5

Impact: A user that is removed from an iMessage group could rejoin the group

Description: An issue existed in the handling of iMessage tapbacks. The issue was resolved with additional verification.

CVE-2020-9885: an anonymous researcher, Suryansh Mansharamani, of WWP High School North (medium.com/@suryanshmansha)

Model I/O

Available for: macOS Catalina 10.15.5

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

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

CVE-2020-9878: Holger Fuhrmannek of Deutsche Telekom Security

Security

Available for: macOS Catalina 10.15.5

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

Description: A logic issue was addressed with improved restrictions.

CVE-2020-9864: Alexander Holodny

Vim

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: A remote attacker may be able to cause arbitrary code execution

Description: This issue was addressed with improved checks.

CVE-2019-20807: Guilherme de Almeida Suckevicz

Wi-Fi

Available for: macOS Catalina 10.15.5

Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory

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

CVE-2020-9918: Jianjun Dai of 360 Alpha Lab working with 360 BugCloud (bugcloud.360.cn)

USB Audio

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