The decode_line_info function in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, allows remote attackers to cause a denial of service (read_1_byte heap-based buffer over-read and application crash) via a crafted ELF file.
https://sourceware.org/bugzilla/show_bug.cgi?id=22059