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.
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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