An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.5.2, macOS Big Sur 11.7.8, iOS 15.7.7 and iPadOS 15.7.7, macOS Monterey 12.6.7, watchOS 8.8.1, iOS 16.5.1 and iPadOS 16.5.1, macOS Ventura 13.4.1. An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://support.apple.com/en-us/HT213810 | vendor advisory |
| https://support.apple.com/en-us/HT213811 | vendor advisory |
| https://support.apple.com/en-us/HT213814 | vendor advisory |
| https://support.apple.com/en-us/HT213808 | vendor advisory |
| https://support.apple.com/en-us/HT213812 | vendor advisory |
| https://support.apple.com/en-us/HT213813 | vendor advisory |
| https://support.apple.com/en-us/HT213809 | vendor advisory |
| https://support.apple.com/kb/HT213990 | vendor advisory |
| http://seclists.org/fulldisclosure/2023/Oct/20 | third party advisory mailing list |