Embedded Files
Font
Font
The manually written font fuzz driver is developed by one of our security experts. He first learns the usage of APIs from the Apple developer documentation website. Then he selects some APIs and links them together. The manual efforts for learning the background knowledge and writing this fuzz driver is around one week/person.
source code, it is an Objective-C source code file.
Image
Image
The manually written image fuzz driver is written by security experts in Project Zero. We found the fuzz driver from their blog (link, the fuzz driver is in the attachment zip).
source code, it is an Objective-C source code file.
More
More
The fuzz drivers for the rest attack surfaces (rtf, pdf, audio in macOS) will be released once we think these attack surfaces have been sufficiently tested.
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