Although Apple custom A-series chips, these are based on the ARM architecture. Some A-Series chips include some elements of the Cortex-A8, -A9, and -A15 processors and are therefore vulnerable.
The A4 chip includes the Cortex-A8 processor and is used in the first-generation iPad, iPhone 4, fourth-generation iPod Touch and second-generation Apple TV. A5 and A5X chips include a dual-core Cortex-A9 processor. A5 for iPad 2, first-generation iPad mini, iPhone 4S, third generation Apple TV and fifth-generation iPod Touch. A5X used in the third-generation iPad. A6 with Cortex-A15 some of the elements used in the iPhone 5 and iPhone 5C.
Apple devices that may be affected are as follows:
- iPhone 4
- iPhone 4S
- iPhone 5
- iPhone 5C
- iPad (1st gen)
- iPad 2
- iPad (3rd gen)
- Apple TV (2nd gen)
- Apple TV (3rd gen)
- iPod Touch (4th gen)
- iPod Touch (5th gen)
Although ARM said some iOS devices and Apple TVs may be affected, it said the probability of being used is very low.
Reference: Softpedia
