CVE-2018-12247

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    CVE-2018-12247

    Published: 12 Jun 2018Last Modified: 8 Jul 2026

    Summary:

    Details: An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c copies flags other than the MRB_FLAG_IS_FROZEN flag (e.g., the embedded flag).

    References: https://github.com/mruby/mruby/issues/4036, https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 023070a6396233974785a8fd5735b9380a884f27
    Fixed -None

    Affected versions

    1.4.1

    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