UBUNTU-CVE-2016-0723

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    UBUNTU-CVE-2016-0723

    Published: 7 Feb 2016Last Modified: 26 Aug 2026
    Upstream:
    CVE-2016-0723
    Aliases:
    USN-2929-1
    USN-2929-2
    USN-2930-1

    Summary:

    Details: Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.

    References: https://ubuntu.com/security/CVE-2016-0723, http://lkml.iu.edu/hypermail/linux/kernel/1511.3/03045.html, https://ubuntu.com/security/notices/USN-2932-1, https://ubuntu.com/security/notices/USN-2930-1, https://ubuntu.com/security/notices/USN-2930-2, https://ubuntu.com/security/notices/USN-2929-2, https://ubuntu.com/security/notices/USN-2929-1, https://ubuntu.com/security/notices/USN-2930-3, https://ubuntu.com/security/notices/USN-2948-1, https://ubuntu.com/security/notices/USN-2967-2, https://ubuntu.com/security/notices/USN-2967-1, https://www.cve.org/CVERecord?id=CVE-2016-0723

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-83.127

    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