The versados_mkobject function in bfd/versados.c in the Binary File Descriptor (BFD) library (aka libbfd) as distributed in GNU Binutils 2.28 does not initialize a certain data structure which allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted binary file as demonstrated by mishandling of this file during \objdump -D\ execution.