CVE-2015-7837

2015-10-1500:00:00

ubuntu.com

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:N/I:P/A:N

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

Percentile

5.1%

JSON

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.

Bugs

<https://launchpad.net/bugs/1509563>

Notes

Author	Note
jdstrand	android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support

OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchlinux< 4.4.0-93.116UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1032.41UNKNOWN
ubuntu16.04noarchlinux-gke< 4.4.0-1028.28UNKNOWN
ubuntu16.04noarchlinux-kvm< 4.4.0-1007.12UNKNOWN
ubuntu14.04noarchlinux-lts-vivid< 3.19.0-74.82~14.04.1UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-93.116~14.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	16.04	noarch	linux	< 4.4.0-93.116	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1032.41	UNKNOWN
ubuntu	16.04	noarch	linux-gke	< 4.4.0-1028.28	UNKNOWN
ubuntu	16.04	noarch	linux-kvm	< 4.4.0-1007.12	UNKNOWN
ubuntu	14.04	noarch	linux-lts-vivid	< 3.19.0-74.82~14.04.1	UNKNOWN
ubuntu	14.04	noarch	linux-lts-xenial	< 4.4.0-93.116~14.04.1	UNKNOWN