A use after free issue was addressed with improved memory management. This issue is fixed in visionOS 2.3, iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3, watchOS 11.3, tvOS 18.3. A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 17.2.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://support.apple.com/en-us/122073 | release notes vendor advisory |
| https://support.apple.com/en-us/122072 | release notes vendor advisory |
| https://support.apple.com/en-us/122068 | release notes vendor advisory |
| https://support.apple.com/en-us/122071 | release notes vendor advisory |
| https://support.apple.com/en-us/122066 | release notes vendor advisory |