CVE-2017-14064

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    CVE-2017-14064

    Published: 31 Aug 2017Last Modified: 8 Jul 2026

    Summary:

    Details: Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len.

    References: http://www.securityfocus.com/bid/100890, http://www.securitytracker.com/id/1039363, http://www.securitytracker.com/id/1042004, https://access.redhat.com/errata/RHSA-2017:3485, https://access.redhat.com/errata/RHSA-2018:0378, https://access.redhat.com/errata/RHSA-2018:0583, https://access.redhat.com/errata/RHSA-2018:0585, https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html, https://security.gentoo.org/glsa/201710-18, https://usn.ubuntu.com/3685-1/, https://www.debian.org/security/2017/dsa-3966, https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/, https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/, https://bugs.ruby-lang.org/issues/13853, https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85, https://hackerone.com/reports/209949

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -8f782fd8e181d9cfe9387ded43a5ca9692266b85

    Affected versions

    v2.0.2
    v2.0.1
    v2.0.0

    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