CVE-2020-8695

Publication date 10 November 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

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 20.10 groovy
Fixed 3.20201110.0ubuntu0.20.10.1
20.04 LTS focal
Fixed 3.20201110.0ubuntu0.20.04.1
19.10 eoan Ignored end of life
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

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Severity 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

Other references