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CVE-2021-3573

Published: 6 June 2021

A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5.

From the Ubuntu security team

It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 6.4

Status

Package Release Status
linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial
Released (4.15.0-154.161~16.04.1)
groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (5.4.0-81.91~18.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal Ignored
(was pending [5.8.0-67.75] now end-of-life)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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(superseded by linux-hwe-5.4)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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
groovy Does not exist

impish Does not exist

jammy Does not exist

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

focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
xenial Does not exist

groovy Does not exist

impish Does not exist

trusty
Released (4.4.0-222.255~14.04.1)
jammy Does not exist

linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1110.117)
focal
Released (5.4.0-1055.58)
hirsute
Released (5.11.0-1016.17)
upstream
Released (5.13~rc5)
xenial
Released (4.4.0-1138.152)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1015.16+21.10.1)
trusty
Released (4.4.0-1102.107)
jammy Not vulnerable
(5.13.0-1005.6)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

bionic
Released (5.4.0-1055.58~18.04.1)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial
Released (4.15.0-1110.117~16.04.1)
groovy Does not exist

impish Does not exist

jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
upstream
Released (5.13~rc5)
focal
Released (5.4.0-1056.58)
hirsute
Released (5.11.0-1013.14)
trusty
Released (4.15.0-1122.135~14.04.1)
xenial
Released (4.15.0-1122.135~16.04.1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1013.14+21.10.1)
jammy Not vulnerable
(5.13.0-1006.7)
linux-azure-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (4.15.0-1122.135)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (5.4.0-1056.58~18.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (4.15.0-1027.32)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1051.55)
upstream
Released (5.13~rc5)
hirsute
Released (5.11.0-1017.19)
trusty Does not exist

xenial
Released (4.15.0-1107.121~16.04.1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1016.18+21.10.2)
jammy Not vulnerable
(5.13.0-1005.6)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1107.121)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (5.4.0-1051.55~18.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.4.0-1051.54)
trusty Does not exist

xenial Ignored
(reached end of standard support)
groovy Does not exist

impish Does not exist

jammy Not vulnerable
(5.15.0-1002.2)
linux-gke-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic Ignored
(was needed now end-of-life)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

bionic
Released (5.4.0-1051.54~18.04.1)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.4.0-1022.23)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

bionic
Released (5.4.0-1022.23~18.04.1)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (5.4.0-1053.57~18.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-oem
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
groovy Does not exist

impish Does not exist

jammy Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.10.0-1038.40)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

upstream
Released (5.13~rc5)
focal
Released (5.4.0-1042.46)
hirsute
Released (5.11.0-1016.17)
trusty Does not exist

xenial Does not exist

groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.13.0-1006.7)
jammy Not vulnerable
(5.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
focal Ignored
(replaced by linux-raspi)
hirsute Does not exist

upstream
Released (5.13~rc5)
bionic
Released (4.15.0-1094.100)
trusty Does not exist

xenial Ignored
(was needs-triage now end-of-life)
groovy Does not exist

impish Does not exist

jammy Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
bionic Ignored
(was needed now end-of-life)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1042.46~18.04.3)
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

focal Ignored
(was needs-triage now end-of-life)
hirsute
Released (5.11.0-1017.18)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.13.0-1002.2)
jammy Not vulnerable
(5.13.0-1004.4)
linux-snapdragon
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1111.120)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Ignored
(was needs-triage now end-of-life)
groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.8.0-1042.44~20.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.8.0-1040.43~20.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

focal
Released (5.8.0-1039.41)
upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.8.0-1038.39~20.04.1)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc5)
focal Ignored
(was pending [5.8.0-33.36] now end-of-life)
trusty Does not exist

xenial Does not exist

groovy Does not exist

impish Does not exist

jammy Does not exist

linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-154.161)
focal
Released (5.4.0-81.91)
upstream
Released (5.13~rc5)
hirsute
Released (5.11.0-31.33)
xenial
Released (4.4.0-222.255)
groovy Ignored
(was pending now end-of-life)
impish Not vulnerable
(5.13.0-14.14)
trusty Ignored
(was needed ESM criteria)
jammy Not vulnerable
(5.13.0-19.19)
linux-kvm
Launchpad, Ubuntu, Debian
upstream
Released (5.13~rc5)
bionic
Released (4.15.0-1098.100)
focal
Released (5.4.0-1045.47)
hirsute
Released (5.11.0-1014.15)
trusty Does not exist

xenial
Released (4.4.0-1103.112)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.13.0-1001.1)
jammy Not vulnerable
(5.13.0-1004.4)
linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1079.87)
upstream
Released (5.13~rc5)
focal
Released (5.4.0-1053.57)
hirsute
Released (5.11.0-1016.17)
trusty Does not exist

xenial
Released (4.15.0-1079.87~16.04.1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1015.16+21.10.1)
jammy Not vulnerable
(5.13.0-1008.10)
linux-bluefield
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal
Released (5.4.0-1019.22)
jammy Does not exist

linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal
Released (5.11.0-34.36~20.04.1)
jammy Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal
Released (5.11.0-1017.18~20.04.1)
jammy Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(5.13.0-1009.10)
hirsute Does not exist

upstream
Released (5.13~rc5)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.11.0-1016.17~20.04.1)
jammy Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

focal
Released (5.11.0-1013.14~20.04.1)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.11.0-1016.17~20.04.1)
jammy Does not exist

linux-ibm
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Does not exist

hirsute Does not exist

focal Not vulnerable
(5.4.0-1003.4)
upstream
Released (5.13~rc5)
jammy Not vulnerable
(5.15.0-1002.2)
linux-gcp-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.13~rc5)
focal
Released (5.11.0-1017.19~20.04.1)
jammy Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal Not vulnerable
(5.14.0-1004.4)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

hirsute Does not exist

impish Does not exist

upstream
Released (5.13~rc5)
jammy Does not exist

linux-azure-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-1009.10~20.04.2)
impish Does not exist

upstream
Released (5.13~rc5)
jammy Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-21.21~20.04.1)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1008.9~20.04.2)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-fips
Launchpad, Ubuntu, Debian
xenial Not vulnerable
(4.4.0-1073.79)
trusty Does not exist

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.13~rc5)
jammy Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1011.13~20.04.2)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1008.9~20.04.3)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic Not vulnerable
(5.4.0-1010.11~18.04.2)
upstream
Released (5.13~rc5)
jammy Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Needed

upstream
Released (5.13~rc5)
jammy Does not exist

linux-lowlatency
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable

upstream Needs triage

linux-oem-5.17
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable

upstream Needs triage