Netwide Assembler (NASM) before 2.13.02 has a use-after-free in detoken at asm/preproc.c.
https://repo.or.cz/nasm.git/commitdiff/9b7ee09abfd426b99aa1ea81d19a3b2818eeabf9
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html