{"schema_version":"1.7.5","id":"CVE-2021-45450","published":"2021-12-21T07:15:06.727Z","modified":"2026-07-08T06:00:47.327098802Z","related":["openSUSE-SU-2024:11752-1","openSUSE-SU-2026:11119-1"],"details":"In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_cipher_encrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mbed-tls/mbedtls","events":[{"introduced":"ac15f842a5bb8d4cbceb7175c5d7ab50d96173c0"},{"fixed":"8b3f26a5ac38d4fdccbc5c5366229f3e01dafcc0"},{"introduced":"8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b"},{"last_affected":"8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b"},{"fixed":"d65aeb37349ad1a50e0f6c9b694d4b5290d60e49"}],"database_specific":{"cpe":["cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*","cpe:2.3:a:trustedfirmware:mbed_tls:3.0.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"2.22.0"},{"fixed":"2.28.0"},{"introduced":"3.0.0"},{"last_affected":"3.0.0"}],"source":["CPE_RANGE","CPE_STRING","REFERENCES"]}}],"versions":["3.0.0","v3.0.0","mbedtls-3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45450.json"}}],"references":[{"type":"ADVISORY","url":"https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0"},{"type":"ADVISORY","url":"https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202301-08"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/"},{"type":"ARTICLE","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/"}],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"36"},{"last_affected":"36"},{"introduced":"37"},{"last_affected":"37"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}