Apple releases new update for macOS Big Sur 11.2.1


Apple today released an error correction update and security enhancements for the macOS Big Sur 11.2.1 for the general public. Likewise, it delivered incremental updates for macOS Catalina 10.15.7, as well as for Mojave 10.14.6.

The new update also corrects the loading problems detected on the MacBook Pro, in addition to bringing several security fixes to the system, the most notable of which being the fix for the Sudo bug, detected last week.

Apple fixes serious security flaw with update for macOS


As we announced in due course, the Sudo bug allowed any dedicated user to gain root access (root) to a Mac. hacker had to combine a brute-force attack and malware to gain this access, such a window of opportunity existed and motivated Apple to act quickly to address this security breach.

The vulnerability detected by Qualys’ research team was dubbed CVE-2021-3156 (aka Baron Samedit) and targeted Sudo, an application through which system administrators can delegate root access to other users.

The details of the update are made known by Apple on the support page. The three versions of the operating system, from Big Sur to Catalina, thus come the important security correction for this flaw in Sudo, reinforcing the user’s security.

The latest system update is being distributed to all elected Apple computers. We recommend that you guarantee the free space indicated by the brand as necessary for the update, in the sense that it is correctly installed.

There is no risk of data loss, or other major concern. It is a highly recommended update as it corrects a system error that could expose users.

If in doubt, consult the additional care to be taken before updating, with care and maintenance tips.

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