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CVE-2020-12352

Published: 14 October 2020

Improper access control in BlueZ may allow an unauthenticated user to potentially enable information disclosure via adjacent access.

From the Ubuntu security team

Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate remote attacker could use this to expose sensitive information (kernel memory).

Notes

AuthorNote
sbeattie
introduced in 3.6
Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-122.124)
focal
Released (5.4.0-52.57)
groovy Not vulnerable
(5.8.0-25.26)
precise Not vulnerable
(3.0.0-12.20)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.10~rc1)
xenial
Released (4.4.0-197.229)
Patches:
Introduced by

47f2d97d38816aaca94c9b6961c6eff1cfcd0bd6

Fixed by eddb7732119d53400f48a02536a84c509692faa8
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Not vulnerable
(CONFIG_BT not set)
groovy Not vulnerable
(CONFIG_BT not set)
precise Does not exist

trusty Not vulnerable
(CONFIG_BT not set)
upstream
Released (5.10~rc1)
xenial Not vulnerable
(CONFIG_BT not set)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

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

focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Not vulnerable
(CONFIG_BT not set)
linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Not vulnerable
(CONFIG_BT not set)
groovy Not vulnerable
(CONFIG_BT not set)
precise Does not exist

trusty Not vulnerable
(CONFIG_BT not set)
upstream Not vulnerable
(CONFIG_BT not set)
xenial Not vulnerable
(CONFIG_BT not set)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(CONFIG_BT not set)
xenial Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Not vulnerable
(cloud-only kernel)
groovy Not vulnerable
(cloud-only kernel)
precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Not vulnerable
(cloud-only kernel)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Pending
(5.4.0-1029.31~18.04.1)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Pending
(5.4.0-1004.5)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(converted to linux-hwe-5.4)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial
Released (4.15.0-122.124~16.04.1)
linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-52.57~18.04.1)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

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

focal Pending
(5.8.0-25.26~20.04.1)
groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

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

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(CONFIG_BT not set)
focal Not vulnerable
(CONFIG_BT not set)
groovy Not vulnerable
(CONFIG_BT not set)
precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Not vulnerable
(CONFIG_BT not set)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

precise Ignored
(was needed ESM criteria)
trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

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

focal Does not exist

groovy Does not exist

precise Does not exist

trusty
Released (4.4.0-197.229~14.04.1)
upstream
Released (5.10~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1100.110)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.6.0-1032.33)
groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1070.76)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Not vulnerable
(cloud-only kernel)
groovy Not vulnerable
(cloud-only kernel)
precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Not vulnerable
(cloud-only kernel)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(cloud-only kernel)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Not vulnerable
(cloud-only kernel)
xenial Does not exist

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

focal
Released (5.4.0-1022.25)
groovy Not vulnerable
(5.8.0-1006.9)
precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1022.25~18.04.1)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1074.79)
focal Ignored
(replaced by linux-raspi)
groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial
Released (4.4.0-1142.152)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1036.38)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

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

focal
Released (5.4.0-37.42)
groovy Not vulnerable
(5.8.0-7.7)
precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1090.99)
focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.10~rc1)
xenial
Released (4.4.0-1146.156)