{"id":"CVE-2021-33455","details":"An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in do_directive() in modules/preprocs/nasm/nasm-pp.c.","modified":"2026-03-14T10:59:19.079957Z","published":"2022-07-26T13:15:09.337Z","references":[{"type":"ADVISORY","url":"https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d"},{"type":"REPORT","url":"https://github.com/yasm/yasm/issues/169"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/yasm/yasm","events":[{"introduced":"0"},{"last_affected":"ba463d3c26c0ece2e797b8d6381b161633b5971a"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.3.0"}]}}],"versions":["v0.1.0","v1.2.0","v1.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33455.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}