CVE-2018-12203

Publication date 14 March 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Denial of service vulnerability in Platform Sample/ Silicon Reference firmware for 8th Generation Intel Core Processor, 7th Generation Intel Core Processor may allow privileged user to potentially execute arbitrary code via local access.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
intel-microcode	19.04 disco	Not affected
	18.10 cosmic	Fixed 3.20190514.0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 3.20190514.0ubuntu0.18.04.2
	16.04 LTS xenial	Fixed 3.20190514.0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 3.20190514.0ubuntu0.14.04.1

Notes

sbeattie

it is unclear whether this issue is addressed in cpu microcode or in other firmware, but if it is in cpu microcode, subsequent updates have addressed the issue.

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.7 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	6.7 · Medium
Exploitability score	-
Impact score	-

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