UBUNTU-CVE-2017-18270

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    UBUNTU-CVE-2017-18270

    Published: 18 May 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-18270
    Aliases:
    USN-3754-1

    Summary:

    Details: In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.

    References: https://ubuntu.com/security/CVE-2017-18270, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3, https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3, https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5, https://ubuntu.com/security/notices/USN-3754-1, https://www.cve.org/CVERecord?id=CVE-2017-18270

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-157.207

    Affected versions

    3.11.0-12.19

    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