CVE-2024-28836

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    CVE-2024-28836

    Published: 3 Apr 2024Last Modified: 12 Aug 2026

    Summary:

    Details: An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When negotiating the TLS version on the server side, it can fall back to the TLS 1.2 implementation of the protocol if it is disabled. If the TLS 1.2 implementation was disabled at build time, a TLS 1.2 client could put a TLS 1.3-only server into an infinite loop processing a TLS 1.2 ClientHello, resulting in a denial of service. If the TLS 1.2 implementation was disabled at runtime, a TLS 1.2 client can successfully establish a TLS 1.2 connection with the server.

    References: https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/28xxx/CVE-2024-28836.json, https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/, https://nvd.nist.gov/vuln/detail/CVE-2024-28836

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 1ec69067fa1351427f904362c1221b31538c8b57
    Fixed -2ca6c285a0dd3f33982dd57299012dacab1ff206

    Affected versions

    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-2024-28836 | CVE-DB