Apple Releases iOS 12.4.1 With Jailbreak Vulnerability Fix

Apple today released iOS 12.4.1, a minor update that comes one month after the launch of iOS 12.4.

The iOS 12.4.1 update is available on all eligible devices over-the-air in the Settings app. To access the update, go to Settings > General > Software Update. As with all iOS updates, iOS 12.4.1 is free to download.

ios12banner
Today's update includes a fix for a vulnerability that allowed hackers to create a jailbreak for the iOS 12.4 update, according to Apple's security support document. Apple actually addressed the vulnerability in iOS 12.3, but then accidentally unpatched it in the iOS 12.4 update.

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

After hackers discovered that the vulnerability was once again available, it didn't take long for a jailbreak to be created. The security issue also left iOS devices vulnerable to hacking attempts, which is why Apple likely worked quickly to correct it.

According to Apple's release notes, the update includes "important security and stability updates" and is recommended for all users.

Related Forum: iOS 12

Top Rated Comments

TheBensonBoy Avatar
56 months ago
In all seriousness, who is jailbreaking anymore anyway? The features we want are basically already on the OS, and really doesn't have any relevant benefits anymore other than extreme customization. At least, thats my opinion on it.

Or, just like anything else in life, they are probably doing it just to say they can do it.
Score: 12 Votes (Like | Disagree)
jwm Avatar
56 months ago
Jailbreak is good for Apple, it helps them innovate.
Score: 11 Votes (Like | Disagree)
JPack Avatar
56 months ago
In all seriousness, who is jailbreaking anymore anyway? The features we want are basically already on the OS, and really doesn't have any relevant benefits anymore other than extreme customization. At least, thats my opinion on it.

Or, just like anything else in life, they are probably doing it just to say they can do it.
It's not only about jailbreaking. This is an exploit that could allow any app in the App Store to jailbreak your device and allow the app to go rogue.
Score: 9 Votes (Like | Disagree)
WingsAndBeer Avatar
56 months ago
In all seriousness, who is jailbreaking anymore anyway? The features we want are basically already on the OS, and really doesn't have any relevant benefits anymore other than extreme customization. At least, thats my opinion on it.

Or, just like anything else in life, they are probably doing it just to say they can do it.
In all seriousness, there's a post like this in EVERY jailbreaking related thread. Know what the capabilities are before you act like it's beneath you. Comedic response.
Score: 8 Votes (Like | Disagree)
dan9700 Avatar
56 months ago
In all seriousness, who is jailbreaking anymore anyway? The features we want are basically already on the OS, and really doesn't have any relevant benefits anymore other than extreme customization. At least, thats my opinion on it.

Or, just like anything else in life, they are probably doing it just to say they can do it.
Have you not seen the jailbreak tweaks they are amazing iOS needs them
Score: 7 Votes (Like | Disagree)
brinary001 Avatar
56 months ago
I used to think that as well, I have not jailbroken since iOS 11, but I recently saw a video of all the features and tweaks in the last jailbreak and it is AMAZING. Apple should learn from these guys, something I hate about the company is their arrogance and slowness to give users what they want.

About your phrase "they are probably doing it just to say they can do it", I disagree, jailbreaking is quite easy today, nothing to brag about, do you remember how we did it back in iOS 5, iOS 6??? That was a process.
I can remember the days of jailbreaking iOS 2, 3, and 4.x. Now THOSE were some lengthy tutorials lol. Redmond Pie's guides used to involve like a dozen steps at least, and if you screwed up just one of them it could've meant an unsuccessful jailbreak or at worst, a bricked device. But those were the Steve Jobs days when Apple was much more "the customer doesn't know what they want until we tell them they want it" oriented, and so it was much more liberating to break out of their lockdown than I feel like it would be today.
Score: 6 Votes (Like | Disagree)

Popular Stories

iOS 17

iOS 17.2 Will Add These 12 New Features to Your iPhone

Friday December 1, 2023 12:19 pm PST by
iOS 17.2 has been in beta testing for over a month, and it should be released to all users in a few more weeks. The software update includes many new features and changes for iPhones, including the dozen that we have highlighted below. iOS 17.2 is expected to be released to the public in mid-December. To learn about even more features coming in the update, check out our full list. Journal ...
iOS 16 4 Web Push

Apple Confirms Governments Using Push Notifications to Surveil Users

Wednesday December 6, 2023 5:06 am PST by
Unidentified governments are surveilling smartphone users by tracking push notifications that move through Google's and Apple's servers, a US senator warned on Wednesday (via Reuters). In a letter to the Department of Justice, Senator Ron Wyden said foreign officials were demanding the data from the tech giants to track smartphones. The traffic flowing from apps that send push notifications...
airpods pro 2 pink

Apple Releases New AirPods Pro 2 Firmware

Tuesday December 5, 2023 11:28 am PST by
Apple today released new firmware update for both the Lightning and USB-C versions of the AirPods Pro 2. The new firmware is version 6B34, up from the 6B32 firmware introduced in November. Apple does not provide details on what features might be included in the refreshed firmware beyond "bug fixes and other improvements," so it is unclear what's new in the update, but prior software releases ...
Beyond iPhone 13 Better Blue

'All-Screen' iPhone Under-Display Camera Enters Development

Wednesday December 6, 2023 2:03 am PST by
Apple's Korean suppliers have begun developing smartphone under-display cameras (UDC), paving the way for the first iPhone with a true "all-screen" appearance. According to The Elec, LG Innotek has entered the preliminary development of the UDC, which sits under the display and does not result in a visible hole in the panel when the camera is not in use. A UDC differs from a typical front ...
magsafe blue 2

iOS 17.2 Brings Qi2 Support to iPhone 13 and iPhone 14 Models

Tuesday December 5, 2023 11:04 am PST by
The iOS 17.2 update that Apple is set to release to the public in the near future will bring support for the next-generation Qi2 wireless charging standard to the iPhone 13 and iPhone 14 models. Qi2 was mentioned in the release notes for the RC version of the update that came out today. With the addition of support for the new standard, iPhone 13 and iPhone 14 models will work with Qi2...
iphone se 4 modified flag edges

iPhone SE 4 May Reuse Existing iPhone 14 Battery

Wednesday December 6, 2023 1:17 pm PST by
Recently, MacRumors has received details on the battery currently being tested on the upcoming fourth-generation iPhone SE, and the information corroborates previous findings in relation to the device. The iPhone SE 4, known by its device identifier D59, is expected to use the exact same battery found in the base model iPhone 14. Partially assembled prototypes of the next iPhone SE have been ...
airpods pro bulbs

Black Friday Prices Return for AirPods Pro 2 With USB-C, iPad, and More

Tuesday December 5, 2023 7:30 am PST by
Today we're tracking a collection of deals that are matching - or nearly matching - the same all-time low discounts we saw during Black Friday. This includes the AirPods Pro 2 with USB-C, 9th generation iPad, and M1 MacBook Air. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the ...
instagram messenger

Instagram and Facebook Messenger Chats to Disconnect This Month

Tuesday December 5, 2023 1:57 am PST by
Meta has revealed plans to end Instagram users' ability to chat with Facebook accounts later this month, rolling back a feature that it introduced over three years ago. In September 2020, Meta (then Facebook) announced it was merging its Facebook Messenger service with Instagram direct messaging, allowing Instagram users to chat with Facebook users and vice versa using the same platform....