CVE-2021-45450

7.5 HIGH

Published: December 21, 2021 Modified: June 05, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0

Source: cve@mitre.org

Release Notes Third Party Advisory

https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0

Source: cve@mitre.org

Release Notes Third Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/

Source: cve@mitre.org

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/

Source: cve@mitre.org

Mailing List

https://security.gentoo.org/glsa/202301-08

Source: cve@mitre.org

Third Party Advisory

https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0