CVE-2021-33466: NULL Pointer Dereference

July 26, 2022 (updated July 28, 2022)

An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_smacro() in modules/preprocs/nasm/nasm-pp.c.

References

gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d
github.com/yasm/yasm/issues/172
nvd.nist.gov/vuln/detail/CVE-2021-33466

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