Netwide Assembler (NASM) 2.13 has a stack-based buffer over-read in the disasm function of the disasm/disasm.c file. Remote attackers could leverage this vulnerability to cause a denial of service or possibly have unspecified other impact via a crafted ELF file.
https://sourceforge.net/p/nasm/bugs/561/
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html