Apple released a supplementary update to MacOS Catalina 10.15.5, which mainly fixes security vulnerabilities

Apple released macOS Catalina 10.15.5 What has been updated ？6 month 2 Daily news Apple released today macOS Catalina 10.15.5 Supplementary update of , The version is 19F96, This is a 2019 year 10 Released on macOS Catalina‌ The fifth update of the operating system . The supplementary update is in macOS Catalina 10.15.5 The update was released a week later .

‌‌macOS Catalina‌‌ 10.15.5 It's a free update , You can use the update function in the system preferences application from Mac App Store download . For operation macOS High Sierra Users of , There is also a security update .

macOS Catalina‌ 10.15.5 The first update of introduces a new battery health management function , This function is designed to prolong the time by reducing the rate of chemical aging Mac Overall battery life . It also includes for fine tuning Pro Display XDR Calibrated controls , And for FaceTime Group call control “ Auto highlight ” The option to .

The focus of the update is security patches , Apple advised all users to install .

‌macOS Catalina‌ 10.15.5 Supplemental updates provide important security updates , It is recommended that all users use .

Some functions may not be available in all regions or all Apple Available on all devices . More information about the security content of this update , Please visit ：https://support.apple.com/zh-cn/HT211215

According to this updated safety instructions , It solves a security vulnerability , This vulnerability may allow applications to execute arbitrary code using kernel privileges .

Apply to ：macOS High Sierra 10.13.6,macOS Catalina 10.15.5

influence ： Applications can execute arbitrary code with kernel privileges

explain ： Through improved memory processing, the problem of memory consumption is solved .

CVE-2020-9859：unc0ver

This vulnerability is different from today's iOS 13.5.1 Official version ,tvOS 13.4.6 and watchOS 6.2.6 The vulnerabilities resolved in the update are the same , It allows the unc0ver Prison break , It is said that the prison break can be in all versions iOS（ Include iOS 13.5） Up operation .

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