iOSmacOS - task_swap_mach_voucher() Use-After-Free

iOSmacOS - taskswapmachvoucher Use-After-Free / voucherswap-poc.c Brandon Azad / if 0 iOS/macOS: taskswapmachvoucher does not respect MIG semantics leading to use-after-free The dangers of not obeying MIG semantics have been well documented: see issues 926 CVE-2016-7612, 954 CVE-2016-7633, 1417...

Apple Mac OSX / iOS - Unsandboxable Kernel Use-After-Free in Mach Vouchers

/ Source: https://code.google.com/p/google-security-research/issues/detail?id=553 The mach voucher subsystem fails to correctly handle spoofed no-more-senders messages. ipckobjectserver will be called for mach messages sent to kernel-owned mach ports. If the msghid of the message can't be found i...