CVE-2020-8695
Publication date 10 November 2020
Last updated 24 July 2024
Ubuntu priority
Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.
From the Ubuntu Security Team
Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit (RAPL) feature of some Intel processors allowed a side-channel attack based on power consumption measurements. A local attacker could possibly use this to expose sensitive information.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| intel-microcode | ||
| 20.04 LTS focal |
Fixed 3.20201110.0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 3.20201110.0ubuntu0.18.04.1
|
|
| 16.04 LTS xenial |
Fixed 3.20201110.0ubuntu0.16.04.1
|
|
| 14.04 LTS trusty |
Fixed 3.20201110.0ubuntu0.14.04.1
|
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Get Ubuntu ProSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.5 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-4628-1
- Intel Microcode vulnerabilities
- 11 November 2020
- USN-4628-3
- Intel Microcode vulnerabilities
- 17 May 2021