UBUNTU-CVE-2016-7916

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    UBUNTU-CVE-2016-7916

    Published: 16 Nov 2016Last Modified: 26 Aug 2026
    Upstream:
    CVE-2016-7916
    Aliases:
    USN-3159-1
    USN-3159-2
    USN-3160-1

    Summary:

    Details: Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.

    References: https://ubuntu.com/security/CVE-2016-7916, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3, http://source.android.com/security/bulletin/2016-11-01.html, http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4, https://bugzilla.kernel.org/show_bug.cgi?id=116461, https://forums.grsecurity.net/viewtopic.php?f=3&t=4363, https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3, https://ubuntu.com/security/notices/USN-3159-1, https://ubuntu.com/security/notices/USN-3159-2, https://ubuntu.com/security/notices/USN-3160-1, https://ubuntu.com/security/notices/USN-3160-2, https://www.cve.org/CVERecord?id=CVE-2016-7916

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-106.153

    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