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MitreCVE-2015-7837

HistorySep 19, 2017 - 4:29 p.m.

CVE-2015-7837

2017-09-1916:29:00

CWE-254

mitre

web.nvd.nist.gov

213

linux

kernel

red hat enterprise

cve-2015-7837

uefi secure boot

security restriction

nvd

kexec reboot

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

AI Score

5.9

Confidence

High

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.

Affected configurations

Nvd

Node

redhatenterprise_linuxMatch7.0

redhatenterprise_linuxMatch7.2

redhatenterprise_linuxMatch7.3

redhatenterprise_linux_desktopMatch7.0

redhatenterprise_linux_server_ausMatch7.3

redhatenterprise_linux_server_ausMatch7.4

redhatenterprise_linux_workstationMatch7.0

redhatenterprise_mrgMatch2.0

redhatkernel-rtMatch7.0

VendorProductVersionCPE
redhatenterprise_linux_server_aus7.4cpe:/o:redhat:enterprise_linux_server_aus:7.4:::
redhatenterprise_linux7.0cpe:/o:redhat:enterprise_linux:7.0:::
redhatenterprise_linux_desktop7.0cpe:/o:redhat:enterprise_linux_desktop:7.0:::
redhatenterprise_linux_server_aus7.3cpe:/o:redhat:enterprise_linux_server_aus:7.3:::
redhatenterprise_mrg2.0cpe:/o:redhat:enterprise_mrg:2.0:::
redhatkernel-rt7.0cpe:/o:redhat:kernel-rt:7.0:::
redhatenterprise_linux7.2cpe:/o:redhat:enterprise_linux:7.2:::
redhatenterprise_linux_workstation7.0cpe:/o:redhat:enterprise_linux_workstation:7.0:::
redhatenterprise_linux7.3cpe:/o:redhat:enterprise_linux:7.3:::

Vendor	Product	Version	CPE
redhat	enterprise_linux_server_aus	7.4	cpe:/o:redhat:enterprise_linux_server_aus:7.4:::
redhat	enterprise_linux	7.0	cpe:/o:redhat:enterprise_linux:7.0:::
redhat	enterprise_linux_desktop	7.0	cpe:/o:redhat:enterprise_linux_desktop:7.0:::
redhat	enterprise_linux_server_aus	7.3	cpe:/o:redhat:enterprise_linux_server_aus:7.3:::
redhat	enterprise_mrg	2.0	cpe:/o:redhat:enterprise_mrg:2.0:::
redhat	kernel-rt	7.0	cpe:/o:redhat:kernel-rt:7.0:::
redhat	enterprise_linux	7.2	cpe:/o:redhat:enterprise_linux:7.2:::
redhat	enterprise_linux_workstation	7.0	cpe:/o:redhat:enterprise_linux_workstation:7.0:::
redhat	enterprise_linux	7.3	cpe:/o:redhat:enterprise_linux:7.3:::