UBUNTU-CVE-2018-12550

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    UBUNTU-CVE-2018-12550

    Published: 27 Mar 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-12550

    Summary:

    Details: When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.

    References: https://ubuntu.com/security/CVE-2018-12550, https://mosquitto.org/blog/2019/02/version-1-5-6-released/, https://mosquitto.org/files/cve/2018-12550, https://www.cve.org/CVERecord?id=CVE-2018-12550

    Affected packages

    Package

    Name: mosquitto

    Purl: pkg:deb/ubuntu/[email protected]+deb7u3ubuntu0.1+esm1?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.15-2ubuntu1
    0.15-2ubuntu1.1
    0.15-2ubuntu1.2

    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-2018-12550 | CVE-DB