CVE-2018-3968

2019-03-2100:00:00

ubuntu.com

4.4 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%

JSON

An exploitable vulnerability exists in the verified boot protection of the
Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions
lack proper FIT signature enforcement, which allows an attacker to bypass
U-Boot’s verified boot and execute an unsigned kernel, embedded in a legacy
image format. To trigger this vulnerability, a local attacker needs to be
able to supply the image to boot.