libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that has an invalid FORM for a pathname.Referenceshttps://github.com/davea42/libdwarf-code/commit/faf99408e3f9f706fc3809dd400e831f989778d3https://www.prevanders.net/dwarfbug.html#DW202010-003http://web.archive.org/web/20190601140703/https://sourceforge.net/projects/libdwarf/https://bugzilla.redhat.com/show_bug.cgi?id=2026000
