Apple has released a new bug fix update, iOS 16.4.1, for iPhone users, which includes important security updates and fixes for bugs related to Siri and emoji. The update is available for all iPhone models that can run iOS 16, which includes the iPhone 8 and newer. The update size is 299.2 MB and comes with the build number 20E252.

One of the main fixes in the update is related to the Pushing Hands emoji, which previously did not show skin tone variations. Additionally, some users reported issues with Siri not responding, which has also been addressed in this update.

Most importantly, iOS 16.4.1 includes fixes for two actively exploited security vulnerabilities: IOSurfaceAccelerator and WebKit. The former could have allowed an app to execute arbitrary code with kernel privileges, while the latter could have led to arbitrary code execution when processing maliciously crafted web content. Apple is aware of reports that both of these issues may have been actively exploited.

Despite some recent outages with the Weather app, this update does not address any issues with the app, as most of the problems are server-side and can be resolved without the need for an iOS update.

iOS 16.4.1 release notes:

• Pushing hands emoji does not show skin tone variations
• Siri does not respond in some cases

iOS 16.4.1 security updates:

IOSurfaceAccelerator

• Impact: An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.
• Description: An out-of-bounds write issue was addressed with improved input validation.

WebKit

• 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.

Users can update their iPhones to iOS 16.4.1 by heading to the Settings app, choosing General, then choosing Software Update. It’s important to keep your iPhone up to date with the latest software updates to ensure the security and functionality of your device.

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