AZL-40910 CVE-2022-28737 affecting package shim-unsigned-aarch64 for versions less than 15.8-3

There's a possible overflow in handleimage when shim tries to load and execute crafted EFI executables; The handleimage function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code...