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Apple Releases macOS Catalina 10.15.5 Supplemental Update – Includes Security Fixes

Apple Releases macOS Catalina 10.15.5 Supplemental Update – Includes Security Fixes

Apple today released a macOS Catalina 10.15.5 supplemental update, the fifth update to the ‌macOS Catalina‌ operating system. The supplemental update comes a week after the release of the full macOS Catalina 10.15.5 update.

macOS Catalina 10.5.5 supplemental update can be downloaded for free from the Mac App Store via the Update feature in the System Preferences app on compatible Macs.

Apple’s full release notes for ‌the macOS Catalina‌ 10.15.5 supplemental update can be found below.

macOS Catalina‌ 10.15.5 supplemental update provides important security updates and is recommended for all users.

Some features may not be available for all regions, or on all Apple devices. For detailed information about the security content of this update, please visit: https://support.apple.com/en-us/HT211215

According to the update security notes, it addresses a security flaw that could allow an application to execute arbitrary code with kernel privileges.

Kernel

Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15.5

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

Description: A memory consumption issue was addressed with improved memory handling.

CVE-2020-9859: unc0ver

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