coffgen.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29.1, does not validate the symbol count, which allows remote attackers to cause a denial of service (integer overflow and application crash, or excessive memory allocation) or possibly have unspecified other impact via a crafted PE file.
https://security.gentoo.org/glsa/201811-17
https://sourceware.org/bugzilla/show_bug.cgi?id=22385
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6cee897971d4d7cd37d2a686bb6d2aa3e759c8ca