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Apple Releases iOS 12.4.1 to Fix iPhone Jailbreak Vulnerability

Apple has released iOS version 12.4.1 on 26th August 2019, the first update since iOS 12.4. The latest update includes a patch for the jailbreak vulnerability recently discovered in 12.4.

Apple has long had contempt for jailbreaking, so it’s no surprise the company would release a patch for the vulnerability. It’s unusual for this jailbreak to be so current, as it typically takes jailbreaks quite some time to break through each repetition of iOS. But it looks to be a case of Apple unintentionally un-patching a bug that allowed jailbreaking in iOS 12.2 versions, as indicated in the security release notes. The iOS 12.3 update patched it, but 12.4 took it back.

If you have no intention of jailbreaking, you can update without worry. However, know that if your iPhone is running iOS 12.4 or lower at this time, you have an excellent opportunity to jailbreak your iPhone. Though, your experience will depend on the type of iPhone model you have.

Apple releases IOS 12.4.1

About Apple Security Updates:

For customers’ protection, Apple doesn’t disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

Kernel

  • Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation
  • Impact: A malicious application may be able to execute arbitrary code with system privileges
  • Description: A use after free issue was addressed with improved memory management.
  • CVE-2019-8605: Ned Williamson working with Google Project Zero

Download and install iOS 12.4.1:

Head to Settings –> General –> Software Update. Then, follow the on-screen instructions to download and install iOS 12.4.1 to your iPhone. You can also wait for it to install automatically if you have “Automatic Updates” toggled on.

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