yasm 1.3.0.55.g101bc was discovered to contain a stack overflow via the function parse_expr1 at /nasm/nasm-parse.c. Note: This has been disputed by third parties who argue this is a bug and not a security issue because yasm is a standalone program not designed to run untrusted code.
https://github.com/z1r00/fuzz_vuln/blob/main/yasm/stack-overflow/parse_expr1/readme.md