{"id":"CVE-2021-45450","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.","modified":"2026-06-26T18:29:19.454859114Z","published":"2021-12-21T07:15:06.727Z","related":["openSUSE-SU-2024:11752-1","openSUSE-SU-2026:11119-1"],"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/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/armmbed/mbedtls","events":[{"introduced":"ac15f842a5bb8d4cbceb7175c5d7ab50d96173c0"},{"fixed":"8b3f26a5ac38d4fdccbc5c5366229f3e01dafcc0"}]}],"versions":["mbedtls-2.22.0","mbedtls-2.23.0","mbedtls-2.24.0","mbedtls-2.25.0","mbedtls-2.26.0","mbedtls-2.27.0","v2.23.0","v2.24.0","v2.25.0","v2.26.0","v2.27.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-45450.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}