UBUNTU-CVE-2014-5045

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    UBUNTU-CVE-2014-5045

    Published: 1 Aug 2014Last Modified: 22 Apr 2026
    Upstream:
    CVE-2014-5045

    Summary:

    Details: The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.

    References: https://ubuntu.com/security/CVE-2014-5045, https://lkml.org/lkml/2014/7/21/98, https://lkml.org/lkml/2014/7/21/245, https://ubuntu.com/security/notices/USN-2336-1, https://ubuntu.com/security/notices/USN-2337-1, https://www.cve.org/CVERecord?id=CVE-2014-5045

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-35.62

    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