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CVE-2020-8695

Published: 10 November 2020

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.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
intel-microcode
Launchpad, Ubuntu, Debian
eoan Ignored
(end of life)
groovy
Released (3.20201110.0ubuntu0.20.10.1)
trusty
Released (3.20201110.0ubuntu0.14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial
Released (3.20201110.0ubuntu0.16.04.1)
bionic
Released (3.20201110.0ubuntu0.18.04.1)
focal
Released (3.20201110.0ubuntu0.20.04.1)

Severity score breakdown

Parameter Value
Base score 5.5
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