UBUNTU-CVE-2018-6914

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    UBUNTU-CVE-2018-6914

    Published: 3 Apr 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-6914
    Aliases:
    USN-3626-1

    Summary:

    Details: Directory traversal vulnerability in the Dir.mktmpdir method in the tmpdir library in Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 might allow attackers to create arbitrary directories or files via a .. (dot dot) in the prefix argument.

    References: https://ubuntu.com/security/CVE-2018-6914, https://www.ruby-lang.org/en/news/2018/03/28/unintentional-file-and-directory-creation-with-directory-traversal-cve-2018-6914/, https://github.com/ruby/ruby/commit/10b96900b90914b0cc1dba36f9736c038db2859d.patch, https://ubuntu.com/security/notices/USN-3626-1, https://www.cve.org/CVERecord?id=CVE-2018-6914

    Affected packages

    Package

    Name: ruby1.9.1

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.9.3.484-2ubuntu1.11

    Affected versions

    1.9.3.194-8.1ubuntu2
    1.9.3.448-1ubuntu1
    1.9.3.448-1ubuntu2
    1.9.3.484-1ubuntu1
    1.9.3.484-1ubuntu2
    1.9.3.484-2ubuntu1
    1.9.3.484-2ubuntu1.1
    1.9.3.484-2ubuntu1.2
    1.9.3.484-2ubuntu1.3
    1.9.3.484-2ubuntu1.5
    1.9.3.484-2ubuntu1.6
    1.9.3.484-2ubuntu1.7
    1.9.3.484-2ubuntu1.8
    1.9.3.484-2ubuntu1.10

    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