UBUNTU-CVE-2017-18188

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    UBUNTU-CVE-2017-18188

    Published: 14 Feb 2018Last Modified: 24 Oct 2025
    Upstream:
    CVE-2017-18188

    Summary:

    Details: OpenRC opentmpfiles through 0.1.3, when the fs.protected_hardlinks sysctl is turned off, allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run.

    References: https://ubuntu.com/security/CVE-2017-18188, https://github.com/OpenRC/opentmpfiles/issues/3, https://www.cve.org/CVERecord?id=CVE-2017-18188

    Affected packages

    Package

    Name: opentmpfiles

    Purl: pkg:deb/ubuntu/[email protected]+2019.05.21.git.44a55796ba-2?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.2+2019.05.21.git.44a55796ba-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