CVE-2021-45450

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    CVE-2021-45450

    Published: 21 Dec 2021Last Modified: 8 Jul 2026

    Summary:

    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.

    References: https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0, https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0, https://security.gentoo.org/glsa/202301-08, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- ac15f842a5bb8d4cbceb7175c5d7ab50d96173c0
    Fixed -8b3f26a5ac38d4fdccbc5c5366229f3e01dafcc0

    Affected versions

    3.0.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-45450 | CVE-DB