UBUNTU-CVE-2016-7097

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    UBUNTU-CVE-2016-7097

    Published: 16 Oct 2016Last Modified: 26 Aug 2026
    Upstream:
    CVE-2016-7097
    Aliases:
    USN-3146-1
    USN-3146-2
    USN-3147-1

    Summary:

    Details: The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.

    References: https://ubuntu.com/security/CVE-2016-7097, http://www.spinics.net/lists/linux-fsdevel/msg98328.html, http://www.spinics.net/lists/linux-fsdevel/msg101138.html, http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2, https://bugzilla.redhat.com/show_bug.cgi?id=1368938, http://seclists.org/oss-sec/2016/q3/380, https://ubuntu.com/security/notices/USN-3146-1, https://ubuntu.com/security/notices/USN-3146-2, https://ubuntu.com/security/notices/USN-3147-1, https://ubuntu.com/security/notices/USN-3161-3, https://ubuntu.com/security/notices/USN-3161-4, https://ubuntu.com/security/notices/USN-3162-2, https://ubuntu.com/security/notices/USN-3422-1, https://ubuntu.com/security/notices/USN-3422-2, https://www.cve.org/CVERecord?id=CVE-2016-7097

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-132.181

    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