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CVE-2020-12912

Published: 12 November 2020

A potential vulnerability in the AMD extension to Linux "hwmon" service may allow an attacker to use the Linux-based Running Average Power Limit (RAPL) interface to show various side channel attacks. In line with industry partners, AMD has updated the RAPL interface to require privileged access.

From the Ubuntu Security Team

It was discovered that the AMD Running Average Power Limit (RAPL) driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
linux-hwe
Launchpad, Ubuntu, Debian
groovy Does not exist

bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
linux-azure-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

xenial Does not exist

groovy Does not exist

upstream
Released (5.10~rc4)
linux-gke-5.0
Launchpad, Ubuntu, Debian
focal Does not exist

groovy Does not exist

bionic Not vulnerable
(5.0.0-1011.11~18.04.1)
trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
focal Does not exist

bionic Not vulnerable
(5.4.0-1019.19~18.04.1)
groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
focal Does not exist

bionic Not vulnerable
(5.4.0-1013.13~18.04.1)
groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
xenial Not vulnerable
(4.2.0-16.19)
focal Not vulnerable
(5.4.0-9.12)
groovy
Released (5.8.0-34.37)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.10~rc4)
Patches:
Introduced by

8abee9566b7e8eecf566c4daf6be062a27369890

Fixed by 60268b0e8258fdea9a3c9f4b51e161c123571db3
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
focal Not vulnerable
(5.4.0-1005.5)
groovy
Released (5.8.0-1017.18)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.4.0-1001.10)
linux-azure
Launchpad, Ubuntu, Debian
groovy
Released (5.8.0-1016.17)
bionic Ignored
(superseded by linux-azure-5.3)
focal Not vulnerable
(5.4.0-1006.6)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.11.0-1009.9)
linux-kvm
Launchpad, Ubuntu, Debian
groovy
Released (5.8.0-1014.15)
bionic Not vulnerable
(4.15.0-1002.2)
focal Not vulnerable
(5.4.0-1004.4)
trusty Does not exist

upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.4.0-1004.9)
linux-riscv
Launchpad, Ubuntu, Debian
groovy Not vulnerable
(AMD only)
bionic Does not exist

focal Not vulnerable
(5.4.0-24.28)
trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1025.25~18.04.1)
upstream
Released (5.10~rc4)
focal Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
groovy
Released (5.8.0-1015.15)
bionic Ignored
(superseded by linux-gcp-5.3)
focal Not vulnerable
(5.4.0-1005.5)
trusty Does not exist

upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.10.0-1004.4)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1018.18~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.15.0-1030.31~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1082.92)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1020.20~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1071.81)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1019.19~18.04.2)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
xenial Not vulnerable
(4.15.0-1007.9~16.04.1)
bionic Not vulnerable
(4.15.0-1007.9)
focal Not vulnerable
(5.4.0-1005.5)
groovy
Released (5.8.0-1014.14)
trusty Does not exist

upstream
Released (5.10~rc4)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1030.32)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1001.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-37.41~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.8.0-34.37~20.04.2)
groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Ignored
(superseded by linux-hwe)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.10~rc4)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.3)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Ignored
(end of standard support)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(5.6.0-1007.7)
groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support, was needs-triage)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(5.4.0-1007.7)
groovy Not vulnerable
(AMD only)
trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-1005.5)
focal Not vulnerable
(AMD only)
groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.2.0-1013.19)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.4.0-1077.82)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.10~rc4)
xenial Not vulnerable
(4.4.0-1013.15)

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