UBUNTU-CVE-2015-7837

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    UBUNTU-CVE-2015-7837

    Published: 15 Oct 2015Last Modified: 11 Sept 2026
    Upstream:
    CVE-2015-7837

    Summary:

    Details: The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secure_boot flag across kexec reboot.

    References: https://ubuntu.com/security/CVE-2015-7837, http://www.openwall.com/lists/oss-security/2015/10/15, https://bugzilla.redhat.com/show_bug.cgi?id=1243998#c3, https://ubuntu.com/security/notices/USN-3405-1, https://ubuntu.com/security/notices/USN-3405-2, https://www.cve.org/CVERecord?id=CVE-2015-7837

    Affected packages

    Package

    Name: linux-lts-vivid

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.19.0-74.82~14.04.1

    Affected versions

    3.19.0-18.18~14.04.1
    3.19.0-20.20~14.04.1
    3.19.0-21.21~14.04.1
    3.19.0-22.22~14.04.1
    3.19.0-23.24~14.04.1
    3.19.0-25.26~14.04.1
    3.19.0-26.28~14.04.1
    3.19.0-28.30~14.04.1
    3.19.0-30.33~14.04.1
    3.19.0-30.34~14.04.1
    3.19.0-31.36~14.04.1
    3.19.0-32.37~14.04.1
    3.19.0-33.38~14.04.1
    3.19.0-37.42~14.04.1
    3.19.0-39.44~14.04.1
    3.19.0-41.46~14.04.2
    3.19.0-42.48~14.04.1
    3.19.0-43.49~14.04.1
    3.19.0-47.53~14.04.1
    3.19.0-49.55~14.04.1
    3.19.0-51.57~14.04.1
    3.19.0-51.58~14.04.1
    3.19.0-56.62~14.04.1
    3.19.0-58.64~14.04.1
    3.19.0-59.65~14.04.1
    3.19.0-59.66~14.04.1
    3.19.0-61.69~14.04.1
    3.19.0-64.72~14.04.1
    3.19.0-65.73~14.04.1
    3.19.0-66.74~14.04.1
    3.19.0-68.76~14.04.1
    3.19.0-69.77~14.04.1
    3.19.0-71.79~14.04.1
    3.19.0-73.81~14.04.1

    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
    UBUNTU-CVE-2015-7837 | CVE-DB