CVE-2021-0127
Published: 9 February 2022
Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to potentially enable a denial of service via local access.
From the Ubuntu Security Team
It was discovered that some Intel processors may not implement sufficient control flow management. This may allow a local authenticated user to cause a denial of service.
Notes
| Author | Note |
|---|---|
| alexmurray | Updates available in upstream release https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20220207 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
intel-microcode Launchpad, Ubuntu, Debian |
bionic |
Released
(3.20220510.0ubuntu0.18.04.1)
|
| focal |
Released
(3.20220510.0ubuntu0.20.04.1)
|
|
| impish |
Released
(3.20220510.0ubuntu0.21.10.1)
|
|
| jammy |
Released
(3.20220510.0ubuntu0.22.04.1)
|
|
| kinetic |
Released
(3.20220207.1ubuntu1)
|
|
| trusty |
Ignored
(early microcode loading not allowed)
|
|
| upstream |
Released
(3.20220207.1)
|
|
| xenial |
Released
(3.20220510.0ubuntu0.16.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.6 |
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |