(1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a “negation overflow.”
www.openwall.com/lists/oss-security/2016/11/19/6
www.openwall.com/lists/oss-security/2016/11/23/3
www.securityfocus.com/bid/94491
blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/
sourceforge.net/p/libdwarf/code/ci/4f19e1050cd8e9ddf2cb6caa061ff2fec4c9b5f9/#diff-5
www.prevanders.net/dwarfbug.html