CVE-2021-44732

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    CVE-2021-44732

    Published: 20 Dec 2021Last Modified: 27 Aug 2026

    Summary:

    Details: Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure.

    References: https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html, https://github.com/ARMmbed/mbedtls/releases, https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12, https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0, https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0, https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html, https://bugs.gentoo.org/829660, https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -cf4667126010c665341f9e50ef691b7ef8294188

    Affected versions

    v2.26.0

    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-2021-44732 | CVE-DB