UBUNTU-CVE-2021-31684

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    UBUNTU-CVE-2021-31684

    Published: 1 Jun 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-31684
    Aliases:
    USN-6011-1

    Summary:

    Details: A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.

    References: https://ubuntu.com/security/CVE-2021-31684, https://github.com/netplex/json-smart-v1/issues/10, https://github.com/netplex/json-smart-v1/pull/11, https://github.com/netplex/json-smart-v2/issues/67, https://github.com/netplex/json-smart-v2/pull/68, https://ubuntu.com/security/notices/USN-6011-1, https://www.cve.org/CVERecord?id=CVE-2021-31684

    Affected packages

    Package

    Name: json-smart

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2-2ubuntu0.18.04.1

    Affected versions

    2.2-1

    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
    UBUNTU-CVE-2021-31684 | CVE-DB