Update, Sept. 18, 2024: This article, originally published on Sept. 17, now includes information about an issue affecting M4 chip iPad Pros running iPadOS 18.
Apple launched iOS 18 on Monday, delivering 33 critical security fixes alongside a suite of exciting new features for iPhone users. This release coincided with iOS 17.7, a security-focused update for those who prefer to delay upgrading.
While iOS 17.7 addresses 16 security vulnerabilities, iOS 18 tackles over twice that number, including serious issues affecting WebKit, the foundation of Safari, and vulnerabilities in the iPhone’s Kernel.
Among the critical vulnerabilities fixed in iOS 18 are two Kernel flaws (CVE-2024-44165 and CVE-2024-44191) that could allow unauthorized Bluetooth access through malicious apps. Another serious issue in the Sandbox (CVE-2024-40863) could lead to sensitive information leaks. Additionally, CVE-2024-40857 relates to a WebKit vulnerability that could enable cross-site scripting through malicious web content. A second WebKit issue (CVE-2024-44187) could allow malicious websites to extract data across domains.
Another flaw in Core Bluetooth (CVE-2024-44124) that was also fixed in iOS 17.7 could allow unauthorized Bluetooth devices to bypass pairing protocols.
Sean Wright, head of application security at Featurespace, noted that some vulnerabilities are particularly significant, especially those allowing malicious Bluetooth connections. He recommends that users running the iOS 18 Beta update promptly to address these vulnerabilities.
iOS 17.7 or iOS 18?
While some users may opt for iOS 17.7 to avoid potential early issues with iOS 18, it’s important to recognize that upgrading to iOS 18 enhances overall device security.
The iOS 18 update focuses heavily on security improvements and introduces new features, including a revamped passwords app that offers functionality similar to comprehensive password managers like 1Password. Privacy enhancements, such as the ability to conceal sensitive apps behind Face ID, are also noteworthy.
If your device can run iOS 17, it’s compatible with iOS 18. However, keep in mind that certain advanced AI features launching later this year will only be available on iPhone 15 and newer models.
Deciding whether to stick with iOS 17 or transition to iOS 18 ultimately comes down to personal preference. Wright advises that many users may choose to remain on iOS 17 until any initial issues with iOS 18 are resolved, which is a valid approach.
To update, navigate to Settings > General > Software Update and choose either iOS 18 or iOS 17.7.
Important Update for M4 iPad Pro Users
For M4 chip iPad Pro users, if you encounter issues updating to iPadOS 18, it’s because the software has been temporarily pulled due to reports of bricking devices. According to users on Reddit, problems arose during the update process, with some iPads failing to turn on after an interrupted installation.
One user shared their experience of a failed iPadOS 18 update following a smooth installation of iOS 17.7, resulting in their device becoming unresponsive despite attempts to reset it.
Notably, this issue seems to affect only a small number of users, and Apple plans to reissue the update once the underlying problem is resolved
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