{"id":"CVE-2021-41581","details":"x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraints.c in LibreSSL through 3.4.0 has a stack-based buffer over-read. When the input exceeds DOMAIN_PART_MAX_LEN, the buffer lacks '\\0' termination.","modified":"2026-03-14T11:14:43.066633Z","published":"2021-09-24T03:15:06.567Z","references":[{"type":"FIX","url":"https://github.com/libressl-portable/openbsd/issues/126"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libressl-portable/portable","events":[{"introduced":"0"},{"last_affected":"691c7c7514c1f46e7d40619c4833094bd1c24571"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"3.4.0"}]}}],"versions":["v2.1.2","v2.1.3","v2.1.4","v2.2.0","v2.2.1","v2.2.2","v2.3.0","v2.3.1","v2.3.2","v2.4.0","v2.4.1","v2.5.0","v2.5.1","v2.5.2","v2.6.0","v2.6.1","v2.6.2","v2.7.0","v2.7.1","v2.8.0","v2.8.1","v2.9.0","v3.0.0","v3.0.1","v3.1.0","v3.2.0","v3.2.1","v3.3.0","v3.3.1","v3.3.2","v3.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41581.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"}]}