remember_Ktype in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.30, allows attackers to trigger excessive memory consumption (aka OOM). This can occur during execution of cxxfilt.
https://usn.ubuntu.com/4336-1/
https://usn.ubuntu.com/4326-1/
https://sourceware.org/bugzilla/show_bug.cgi?id=23059
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85453
https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1763101