GHSA-8m9g-647g-5pxw

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    GHSA-8m9g-647g-5pxw

    Published: 15 Feb 2022Last Modified: 8 Nov 2023

    Summary: Infinite loop in Yubico yubihsm-connector

    Details: An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04). The handler did not validate the length of the request, which can lead to a state where yubihsm-connector becomes stuck in a loop waiting for the YubiHSM to send it data, preventing any further operations until the yubihsm-connector is restarted. An attacker can send 0, 1, or 2 bytes to trigger this.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-28484, https://github.com/Yubico/yubihsm-connector/commit/82bdf202c53460bac9106cc9b4b34a0a16cae0ed, https://github.com/Yubico/yubihsm-connector/releases, https://www.yubico.com/support/security-advisories/ysa-2021-02

    Affected packages

    Package

    Name: github.com/Yubico/yubihsm-connector

    Purl: pkg:golang/github.com/Yubico/yubihsm-connector

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.0.1

    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
    GHSA-8m9g-647g-5pxw | CVE-DB