A flaw was found in in GNU libiberty, as distributed in GNU Binutils 2.30. A NULL pointer dereference (aka SEGV on unknown address 0x000000000000) was discovered in workstuffcopytofrom in cplus-dem.c.

References: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1763102 https://gcc.gnu.org/bugzilla/showbug.cgi?id=85454 https://sourceware.org/bugzilla/showbug.cgi?id=23057

demangletemplate in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.30, allows attackers to trigger excessive memory consumption (aka OOM) during the "Create an array for saving the template argument values" XNEWVEC call. This can occur during execution of objdump.