Import table with empty blocks interpreted as wrong

[hasherezade]

It is rare, but it may happen in valid PE files, that full blocks are empty:

Example - the files belonging to MS Office:

C:/Program Files/Common Files/microsoft shared/OfficeSoftwareProtectionPlatform/OSPPSVC.EXE
C:/Program Files/Common Files/microsoft shared/OfficeSoftwareProtectionPlatform/OSPPOBJS.DLL

LibPEConv interprets blocks which have all entries empty as invalid blocks.

libpeconv/libpeconv/src/relocate.cpp

Line 78 in 01bc0d0

return (i != 0);

And then the full Import Table is treated as invalid:

libpeconv/libpeconv/src/relocate.cpp

Lines 120 to 121 in 01bc0d0

	if (!process_reloc_block(block, entriesNum, page, modulePtr, moduleSize, is64b, callback)) {
	return false;