With all eyes on the next beta release for iOS 13, Apple is still releasing updates for iOS 12. Today, the company has released iOS 12.4.1, the first update since iOS 12.4. The latest update includes a patch for the recently discovered jailbreak vulnerability in 12.4.
Apple has long despised jailbreaking, so it's not surprising that the company released a patch for the vulnerability. It is unusual for this jailbreak to be so up-to-date, as jailbreaking typically takes some time to break any iteration of iOS. However, it seems to be a case in which Apple accidentally fixed a bug that allowed jailbreaking in iOS 12.2 versions, as stated in the security release notes (which even thank Pwn20wnd, who oversees the underc0ver jailbreak). The iOS 1
If you do not intend to jailbreak, you can safely upgrade. However, keep in mind that if your iPhone is currently running iOS 12.4 or lower, you'll have a great opportunity to jailbreak your iPhone today. Your experience, however, depends on the type of your iPhone model.
Available for: iPhone 5 s and above, iPad Air and above, and iPod touch 6th generation
Symptom: A malicious application may have arbitrary code Execute system permissions.
Description: Fixed use after a free problem with improved memory management.
CVE-2019-8605: Ned Williamson Works with Google Project Zero
We'd like to thank @ Pwn20wnd for their support.
To download and install the update at this point, go to Settings -> General -> Software Update. Then follow the instructions on the screen to download and install iOS 12.4.1 on your iPhone. You can also wait until it automatically installs when Automatic Updates is enabled.