MacOS 11.6 with important security updates is released by Apple

MacOS 11.6 with important security updates is released by Apple

Tech Highlights:

  • macOS 11.6 arrived today alongside iOS 14.8 and watchOS 7.6.2. The main changes are two security updates. And along with the update for Big Sur, Apple has also released the security update for macOS Catalina, however, just one flaw fix was needed there.

  • While Apple continues beta testing of macOS 12 Monterey, a new macOS Big Sur update has landed for all Mac users with 11.6. The new software hasn’t been beta tested and brings two important security updates that may have been actively exploited. There’s also an update for those running macOS Catalina.

Here are the specifics on the Big Sur security fixes. Notably, Apple says that both flaws may have been “actively exploited.”

Description: An integer overflow was addressed with improved input validation.

Impact: Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

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

CVE-2021-30858: an anonymous researcher

macOS 11.6 (build number 20G165) is available for all users and should be showing up in System Preferences > Software Update soon if it’s not already.

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