A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 13.1 and iPadOS 13.1, macOS Catalina 10.15. Parsing a maliciously crafted iBooks file may lead to a persistent denial-of-service.
| Software | From | Fixed in |
|---|---|---|
| apple / iphone_os | - | 13.1 |
| apple / mac_os_x | - | 10.15 |
| apple / ipad_os | - | 13.1 |