CVE-2018-3640
Publication date 21 May 2018
Last updated 24 July 2024
Ubuntu priority
Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized disclosure of system parameters to an attacker with local user access via a side-channel analysis, aka Rogue System Register Read (RSRE), Variant 3a.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| intel-microcode | 18.04 LTS bionic |
Fixed 3.20180807a.0ubuntu0.18.04.1
|
| 16.04 LTS xenial |
Fixed 3.20180807a.0ubuntu0.16.04.1
|
|
| 14.04 LTS trusty |
Fixed 3.20180807a.0ubuntu0.14.04.1
|
Notes
tyhicks
V3a - Rogue Register Load Will be entirely addressed by microcode updates. No kernel changes are needed.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.6 · Medium
|
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-3756-1
- Intel Microcode vulnerabilities
- 27 August 2018