CVE-2021-24119

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    CVE-2021-24119

    Published: 14 Jul 2021Last Modified: 27 Aug 2026

    Summary:

    Details: In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

    References: https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html, https://github.com/ARMmbed/mbedtls/releases, https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md, https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html, https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRRVY7DMTX3ECFNZKDYTSFEG5AI2HBC6/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYJW7HAW3TDV2YMDFYXP3HD6WRQRTLJW/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e483a77c85e1f9c1dd2eb1c5a8f552d2617fe400

    Affected versions

    v2.24.0

    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-2021-24119 | CVE-DB