Apple iOS Multiple Vulnerabilities

Multiple vulnerabilities have been identified in Apple iOS. A local user can obtain elevated privileges on the target system.

1. A local user can exploit a flaw in the handling of Mach-O executable files with overlapping segments to execute unsigned code on the target system.
2. A local user can exploit a flaw in the ARM prefetch abort handling to determine the address of structures in the kernel.
3. A local user can conduct a symlink attack on files restore by backup using Lockdown to modify permissions on target files.
4. A local user can exploit a flaw in the IOUSBDeviceFamily driver to execute arbitrary code with kernel level privileges.