CVE-2018-12205
Publication date 14 March 2019
Last updated 25 August 2025
Ubuntu priority
Description
Improper certificate validation in Platform Sample/ Silicon Reference firmware for 8th Generation Intel(R) Core(tm) Processor, 7th Generation Intel(R) Core(tm) Processor may allow an unauthenticated user to potentially enable an escalation of privilege via physical access.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| intel-microcode | ||
| 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
| Parameter | Value |
|---|---|
| Base score |
6.8 · Medium
|
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |