Apple recently released their macOS Big Sur 11.3 software update, and now they have also released another update, macOS Big Sur 11.3.1.
The macOS Big Sur 11.3.1 software update comes at the same time as the release of iOS 14.5.1 and iPadOS 14.5.1, and it addresses some critical security vulnerabilities in macOS. This update is crucial for maintaining the security and integrity of your device, as it fixes issues related to WebKit, the browser engine used by Safari and other apps.
Security Vulnerabilities Addressed
The primary focus of the macOS Big Sur 11.3.1 update is to patch security flaws that could potentially be exploited by malicious actors. Specifically, the update addresses a memory corruption issue in WebKit. This vulnerability could allow attackers to execute arbitrary code on your device by tricking you into processing maliciously crafted web content. Apple has acknowledged that this issue may have been actively exploited, making it even more critical for users to update their systems promptly.
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 memory corruption issue was addressed with improved state management.
CVE-2021-30665: yangkang (@dnpushme)&zerokeeper&bianliang of 360 ATA
Why You Should Update
Updating to macOS Big Sur 11.3.1 is not just about getting the latest features; it’s about ensuring your device is protected against known vulnerabilities. Cybersecurity threats are constantly evolving, and even a small security flaw can be a gateway for more significant issues. By keeping your software up to date, you are taking a proactive step in safeguarding your personal information and maintaining the overall health of your device.
Moreover, this update is part of Apple’s broader strategy to keep its ecosystem secure. Alongside macOS Big Sur 11.3.1, Apple has also released updates for iOS and iPadOS, indicating a coordinated effort to address security issues across all its platforms. This holistic approach ensures that all Apple devices, whether it’s your Mac, iPhone, or iPad, are protected against similar threats.
How to Update
Updating your macOS is straightforward. Here are the steps to ensure your Mac is running the latest software:
1. Open the Apple menu and select “System Preferences.”
2. Click on “Software Update.”
3. If macOS Big Sur 11.3.1 is available, click “Update Now” to begin the installation process.
4. Follow the on-screen instructions to complete the update.
It’s also a good practice to back up your data before initiating any software update. This ensures that you have a copy of your important files in case anything goes wrong during the update process.
The full details on what security issues have been addressed in this software update can be seen over at Apple’s website at the link below.
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