Apple Blocks TaiG Jailbreak With iOS 8.4.1

Apple has blocked the TaiG jailbreak with the release of iOS 8.4.1, closing several vulnerabilities discovered by the team.

A document detailing the security content of iOS 8.4.1 reveals the various exploits closed by Apple.

AppleFileConduit
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: A maliciously crafted afc command may allow access to protected parts of the filesystem
● Description: An issue existed in the symbolic linking mechanism of afc. This issue was addressed by adding additional path checks.
● CVE-2015-5746 : evad3rs, TaiG Jailbreak Team


Air Traffic
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: AirTraffic may have allowed access to protected parts of the filesystem
● Description: A path traversal issue existed in asset handling. This was addressed with improved validation.
● CVE-2015-5766 : TaiG Jailbreak Team

Backup
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: A malicious application may be able to create symlinks to protected regions of the disk
● Description: An issue existed within the path validation logic for symlinks. This issue was addressed through improved path sanitization.
● CVE-2015-5752 : TaiG Jailbreak Team

Code Signing
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: A malicious application may be able to execute unsigned code
● Description: An issue existed that allowed unsigned code to be appended to signed code in a specially crafted executable file. This issue was addressed through improved code signature validation.
● CVE-2015-3806 : TaiG Jailbreak Team

Code Signing
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: A specially crafted executable file could allow unsigned, malicious code to execute
● Description: An issue existed in the way multi-architecture executable files were evaluated that could have allowed unsigned code to be executed. This issue was addressed through improved validation of executable files.
● CVE-2015-3803 : TaiG Jailbreak Team


Code Signing
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: A local user may be able to execute unsigned code
● Description: A validation issue existed in the handling of Mach-O files. This was addressed by adding additional checks.
● CVE-2015-3802 : TaiG Jailbreak Team
● CVE-2015-3805 : TaiG Jailbreak Team

IOHIDFamily
● Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later
● Impact: A local user may be able to execute arbitrary code with system privileges
● Description: A buffer overflow issue existed in IOHIDFamily. This issue was addressed through improved memory handling.
● CVE-2015-5774 : TaiG Jailbreak Team

If you're jailbroken, please take extra care not to update to iOS 8.4.1. We likely won't see another jailbreak until after iOS 9 is released but make sure to follow iClarified on Twitter, Facebook, or RSS for updates.