Processing a maliciously crafted font may lead to arbitrary code execution.Users may be unable to remove metadata indicating where files were downloaded from.A local attacker may be able to elevate their privileges.Processing a maliciously crafted image may lead to arbitrary code execution.An application may be able to execute arbitrary code with kernel privileges.Processing a maliciously crafted audio file may lead to arbitrary code execution.A remote attacker may be able to cause unexpected application termination or heap corruption.A problem where maliciously crafted audio file could lead to arbitrary code execution a malicious application may be able to read restricted memory.An issue where an application may be able to gain elevated privileges. The security fixes addressed the following issues: Apple has removed a whitelist for some of its own processes and programs that meant that traffic from these always went straight to the internet. For more information read:Īpple’s own programs bypass firewalls and VPNs in Big Sur. No longer bypass firewalls such as Little Snitch and VPNs. The first change meant that Apple programs can MacOS 11.2 brings a number of changes including fixing Apple’s firewall bypass and stopping people installing iOS apps on M1 Macs if the developer hasn’t approved it. It also provided some important security patches – including one for aĪ second version of the 2.1 update (build 20D75) was released a week later on 15 February andĪddressed a macOS installation issue where the installer would fail to check whether enough space was available before installing the operating system update – which would then run out of space before finishing leaving the Mac user with no option but to reinstall macOS Big Sur as a Problem where 20 MacBook Pro models were failing to charge past 1%. There were a few problems with macOS 11.2 which lead Apple to quickly issue a Big Sur 11.2.1 update on 9 February.
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