UBUNTU-CVE-2017-18216

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    UBUNTU-CVE-2017-18216

    Published: 5 Mar 2018Last Modified: 26 Aug 2026
    Upstream:
    CVE-2017-18216
    Aliases:
    USN-3776-1
    USN-3776-2
    USN-3798-1

    Summary:

    Details: In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.

    References: https://ubuntu.com/security/CVE-2017-18216, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2, https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2, https://ubuntu.com/security/notices/USN-3776-1, https://ubuntu.com/security/notices/USN-3776-2, https://ubuntu.com/security/notices/USN-3798-1, https://ubuntu.com/security/notices/USN-3798-2, https://www.cve.org/CVERecord?id=CVE-2017-18216

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-161.211

    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