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Apple security documents reference vulnerabilities by CVE-ID when possible.
iOS 9.3.5
Released August 25, 2016
Kernel
Available for: iPhone 4s and later, iPad 2 and later, iPod touch (5th generation) and later
Impact: An application may be able to disclose kernel memory
Description: A validation issue was addressed through improved input sanitization.
CVE-2016-4655: Citizen Lab and Lookout
Kernel
Available for: iPhone 4s and later, iPad 2 and later, iPod touch (5th generation) and later
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4656: Citizen Lab and Lookout
WebKit
Available for: iPhone 4s and later, iPad 2 and later, iPod touch (5th generation) and later
Impact: Visiting a maliciously crafted website may lead to arbitrary code execution
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4657: Citizen Lab and Lookout