The get_count function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31, allows remote attackers to cause a denial of service (malloc called with the result of an integer-overflowing calculation) or possibly have unspecified other impact via a crafted string, as demonstrated by c++filt.
https://usn.ubuntu.com/4336-1/
https://usn.ubuntu.com/4326-1/
https://sourceware.org/bugzilla/show_bug.cgi?id=23767
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87602
http://www.securityfocus.com/bid/105689
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html