The _bfd_xcoff_read_ar_hdr function in bfd/coff-rs6000.c and
bfd/coff64-rs6000.c in the Binary File Descriptor (BFD) library (aka
libbfd), as distributed in GNU Binutils 2.29 and earlier, allows remote
attackers to cause an out of bounds stack read via a crafted COFF image
file.