In Netwide Assembler (NASM) 2.15rc0, a heap-based buffer over-read occurs (via a crafted .asm file) in set_text_free when called from expand_one_smacro in asm/preproc.c. CREATE(Triage):(User=admin) CVE-2019-20352 (https://nvd.nist.gov/vuln/detail/CVE-2019-20352)