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CVE-2020-15780

Published: 15 July 2020

An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30.

From the Ubuntu Security Team

Jason A. Donenfeld discovered that the ACPI implementation in the Linux kernel did not properly restrict loading ACPI tables via configfs. A privileged attacker could use this to bypass Secure Boot lockdown restrictions and execute arbitrary code in the kernel.

Notes

AuthorNote
sbeattie
acpi configfs interface added in 4.8/

Priority

Medium

Cvss 3 Severity Score

6.7

Score breakdown

Status

Package Release Status
linux-gke-5.4
Launchpad, Ubuntu, Debian
focal Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

bionic Not vulnerable
(5.4.0-1025.25~18.04.1)
upstream
Released (5.8~rc3)
linux-gkeop-5.4
Launchpad, Ubuntu, Debian
focal Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

bionic Not vulnerable
(5.4.0-1001.1)
upstream
Released (5.8~rc3)
linux-hwe-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

focal Not vulnerable
(5.8.0-23.24~20.04.1)
upstream
Released (5.8~rc3)
linux-dell300x
Launchpad, Ubuntu, Debian
focal Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

bionic Not vulnerable
(4.15.0-1005.8)
upstream
Released (5.8~rc3)
linux-gkeop
Launchpad, Ubuntu, Debian
bionic Does not exist

groovy Does not exist

focal Not vulnerable
(5.4.0-1008.9)
upstream
Released (5.8~rc3)
trusty Does not exist

xenial Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
focal Not vulnerable
(5.10.0-1008.9)
upstream
Released (5.8~rc3)
bionic Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

linux-azure
Launchpad, Ubuntu, Debian
trusty
Released (4.15.0-1092.102~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
bionic Ignored
(end of life, was needs-triage)
eoan Ignored
(end of life)
focal
Released (5.4.0-1022.22)
groovy Not vulnerable
(5.4.0-1022.22)
upstream
Released (5.8~rc3)
xenial
Released (4.15.0-1092.102~16.04.1)
linux-aws
Launchpad, Ubuntu, Debian
groovy Not vulnerable
(5.4.0-1020.20)
bionic
Released (4.15.0-1079.83)
eoan Ignored
(end of life)
focal
Released (5.4.0-1020.20)
trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (5.8~rc3)
xenial Not vulnerable
(4.4.0-1001.10)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1032.34~18.04.2)
upstream
Released (5.8~rc3)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
upstream
Released (5.8~rc3)
bionic Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

xenial
Released (4.15.0-1079.83~16.04.1)
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-112.113)
eoan Ignored
(end of life)
focal
Released (5.4.0-42.46)
groovy Not vulnerable
(5.4.0-42.46)
trusty Not vulnerable
(code not present)
upstream
Released (5.8~rc3)
xenial Not vulnerable
(code not present)
Patches:
Introduced by

612bd01fc6e04c3ce9eb59587b4a7e4ebd6aff35

Fixed by 75b0cea7bf307f362057cc778efe89af4c615354|local-2020-15780-fix
linux-gcp-5.4
Launchpad, Ubuntu, Debian
focal Does not exist

bionic
Released (5.4.0-1021.21~18.04.1)
groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1020.20~18.04.2)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1092.102)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1034.35~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1022.22~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
eoan Ignored
(end of life)
focal
Released (5.4.0-1021.21)
groovy Not vulnerable
(5.4.0-1021.21)
trusty Does not exist

upstream
Released (5.8~rc3)
xenial
Released (4.15.0-1080.90~16.04.1)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1080.90)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1032.34~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1066.69)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1045.46)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1032.34~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-64.58~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial
Released (4.15.0-112.113~16.04.1)
linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-42.46~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Ignored
(end of life, was needs-triage)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1071.72)
eoan Ignored
(end of life)
focal
Released (5.4.0-1020.20)
groovy Not vulnerable
(5.4.0-1020.20)
trusty Does not exist

upstream
Released (5.8~rc3)
xenial Not vulnerable
(4.4.0-1004.9)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

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

eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (5.8~rc3)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1093.103)
eoan Ignored
(end of life)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Ignored
(end of standard support, was needs-triage)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal
Released (5.6.0-1031.32)
groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1065.70)
eoan Ignored
(end of life)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1050.54)
eoan Ignored
(end of life)
focal
Released (5.4.0-1021.21)
groovy Not vulnerable
(5.4.0-1021.21)
trusty Does not exist

upstream
Released (5.8~rc3)
xenial
Released (4.15.0-1050.54~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1030.32~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1021.21~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

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

eoan Does not exist

focal
Released (5.4.0-1015.15)
groovy Not vulnerable
(5.4.0-1015.15)
trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1015.15~18.04.1)
focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1067.71)
eoan Ignored
(end of life)
focal Ignored
(end of life, was needs-triage)
groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Not vulnerable
(4.2.0-1013.19)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1030.32~18.04.2)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

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

eoan Does not exist

focal
Released (5.4.0-30.34)
groovy Not vulnerable
(5.4.0-30.34)
trusty Does not exist

upstream
Released (5.8~rc3)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1083.91)
eoan Does not exist

focal Does not exist

groovy Does not exist

trusty Does not exist

upstream
Released (5.8~rc3)
xenial Not vulnerable
(4.4.0-1013.15)

Severity score breakdown

Parameter Value
Base score 6.7
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H