Apple Releases iOS 12.4.1 With Jailbreak Vulnerability Fix

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Apr 12, 2001
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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.


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.

Article Link: Apple Releases iOS 12.4.1 With Jailbreak Vulnerability Fix
 

Sasparilla

macrumors 65816
Jul 6, 2012
1,356
2,074
Nice!

Guessing this'll be the last iOS 12 release before 13. (with all the big changes in 13, 12.4.1 may need to last a while till 13 settles down)
 

TheBensonBoy

macrumors newbie
Apr 11, 2018
19
85
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.
 

thadoggfather

macrumors G4
Oct 1, 2007
10,937
7,949
tAkE tHaT jAiLbReAkErS muHAHAHAHAHAHA

tHaTs wHaT yOu gEt fOr sTiLl gIvInG aPpLe mOnEy fOr ThEiR dEviCeS (bUt NoT aCcEpTiNg sToCk iOS!!!!!!!!1)
 
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dan9700

Suspended
May 28, 2015
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4,593
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
 

JPack

macrumors 601
Mar 27, 2017
4,975
7,391
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.
 

Rogifan

macrumors Core
Nov 14, 2011
20,913
23,660
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.
I swear to god the only people who jailbreaked were those who wanted to pirate apps or use their phone for tethering but their carrier plan didn’t allow it.
 

edgonzalez32

macrumors 6502
Jul 21, 2011
359
433
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.
There's an entire community around jailbreaking. So a ton of people still are.
 

bbednarz

macrumors 65816
Nov 16, 2017
1,265
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Chicago
I swear to god the only people who jailbreaked were those who wanted to pirate apps or use their phone for tethering but their carrier plan didn’t allow it.
I did it for the customization personally. Then I learned about the tethering thing and used that quite a lot lol. Didn't pirate games though. Was mainly about customization, when I cared about those things.
 

Stars&Stripes

macrumors newbie
May 3, 2010
19
108
NYC
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.
Check this post out, from another thread.

https://forums.macrumors.com/threads/apple-accidentally-unpatches-vulnerability-leading-to-new-ios-12-4-jailbreak.2194325/page-2#post-27640386

I love questions like that. Yeah, the community is quite big, the jailbreak subreddit has over 300k subscribers and after last couple of releases it seems to be gathering some popularity.

Stock iOS 12 is great, but jailbreaking it is a no-brainer for me, especially when we can jailbreak the newest and signed version (which is a very rare opportunity)
I can tell you why I jailbreak all my iOS devices (SE and two X's)

- You can get real split screen multitasking with the https://www.idownloadblog.com/2019/04/23/pullover-pro/

- You can have ANY app on the CarPlay screen with https://www.redmondpie.com/carbridge-for-ios-12-jailbreak-released-lets-you-use-any-app-with-carplay/

- You can get all iPhone X gestures on older devices without any lags, bugs, with the https://www.idownloadblog.com/2019/03/18/neptune-for-iphone/

- You can have customizable Answering machine, record messages to the device and even set different greetings for different callers with https://www.idownloadblog.com/2018/08/23/answeringmachine-x/

- You can get rid of the full screen calling screen which users have been asking for ages with https://www.idownloadblog.com/2019/03/06/callbar-xs-brings-everyones-favorite-phone-call-centric-jailbreak-tweak-to-ios-12/

- You can stack icons together instead of using folders which looks extremely cool with https://www.idownloadblog.com/2018/12/03/zenith/

- You can get amazing gestures in app switcher screen with https://www.idownloadblog.com/2019/05/04/gesto/

- You can get the grid switcher from iPad in your iPhone with https://www.idownloadblog.com/2019/03/11/newgridswitcher/

- You can have custom shortcuts on lockscreen with the https://www.idownloadblog.com/2018/04/20/jumper/

- You can write notes on your lockscreen with the https://www.idownloadblog.com/2018/08/30/notepad/

- And hundreds of small things​

Jailbreaking is not only about some themes, you can really get the 100% from your iPhones instead of the 60% or less that Apple gives you.
My jailbroken SE can do more than stock XS (without any performance issues) and that is not an exaggeration

I think that now is an amazing opportunity to try jailbreaking, you have nothing to lose. If anything happens (which is extremely unlikely because jailbreaks now aren't permanent/untethered) you can easily restore your device to the newest stock iOS version with iTunes and forget about everything
 

GeoStructural

macrumors regular
Oct 8, 2016
221
621
Colombia
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.
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.
 

gotluck

macrumors 603
Dec 8, 2011
5,640
1,016
East Central Florida
I swear to god the only people who jailbreaked were those who wanted to pirate apps or use their phone for tethering but their carrier plan didn’t allow it.
the most compelling tweak these days is airmessage imo. Sets up a iMessage webserver that lets use imessage from any OS. I keep an older iPhone jailbroken for it.

tetherme like you say is a big one too
 
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brinary001

macrumors 6502a
Sep 4, 2012
849
911
Midwest, USA
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.