UBUNTU-CVE-2015-2925

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    UBUNTU-CVE-2015-2925

    Published: 6 Apr 2015Last Modified: 26 Aug 2026
    Upstream:
    CVE-2015-2925
    Aliases:
    USN-2792-1
    USN-2794-1
    USN-2795-1

    Summary:

    Details: The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."

    References: https://ubuntu.com/security/CVE-2015-2925, http://permalink.gmane.org/gmane.linux.kernel.containers/29173, http://permalink.gmane.org/gmane.linux.kernel.containers/29177, http://article.gmane.org/gmane.linux.kernel.stable/151103, https://ubuntu.com/security/notices/USN-2794-1, https://ubuntu.com/security/notices/USN-2792-1, https://ubuntu.com/security/notices/USN-2795-1, https://ubuntu.com/security/notices/USN-2799-1, https://ubuntu.com/security/notices/USN-2796-1, https://ubuntu.com/security/notices/USN-2798-1, https://ubuntu.com/security/notices/USN-2797-1, https://www.cve.org/CVERecord?id=CVE-2015-2925

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-67.110

    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