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CVE-2021-33034

Published: 14 May 2021

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

From the Ubuntu security team

It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux-kvm
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1041.42)
impish Not vulnerable
(5.11.0-1009.9+21.10.1)
jammy Not vulnerable
(5.13.0-1004.4)
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1100.109)
bionic
Released (4.15.0-1097.99)
groovy
Released (5.8.0-1031.33)
hirsute
Released (5.11.0-1009.9)
upstream
Released (5.13~rc1)
linux-oem-5.6
Launchpad, Ubuntu, Debian
focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-raspi
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1038.41)
impish Not vulnerable
(5.13.0-1006.7)
jammy Not vulnerable
(5.13.0-1008.9)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy
Released (5.8.0-1030.33)
hirsute
Released (5.11.0-1012.13)
upstream
Released (5.13~rc1)
linux-aws-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.8.0-1041.43~20.04.1)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.8.0-1039.42~20.04.1)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.8.0-1038.40~20.04.1)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.8.0-1037.38~20.04.1)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Ignored
(was pending [5.8.0-33.36] now end-of-life)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1046.49)
impish Not vulnerable
(5.11.0-1009.10+21.10.1)
jammy Not vulnerable
(5.13.0-1005.6)
precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-1106.120~16.04.1)
bionic Ignored
(superseded by linux-gcp-5.3)
groovy
Released (5.8.0-1036.38)
hirsute
Released (5.11.0-1011.12)
upstream
Released (5.13~rc1)
linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1046.49~18.04.1)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-gke
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1046.48)
impish Does not exist

jammy Not vulnerable
(5.15.0-1002.2)
precise Does not exist

trusty Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-gkeop
Launchpad, Ubuntu, Debian
focal
Released (5.4.0-1018.19)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1018.19~18.04.1)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-77.86~18.04.1)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1038.41~18.04.1)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-oem-5.10
Launchpad, Ubuntu, Debian
focal
Released (5.10.0-1032.33)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-riscv
Launchpad, Ubuntu, Debian
groovy
Released (5.8.0-30.32)
impish Not vulnerable
(5.11.0-1010.10+21.10.2)
jammy Not vulnerable
(5.13.0-1004.4)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
hirsute
Released (5.11.0-1012.12)
upstream
Released (5.13~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1109.118)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-bluefield
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
focal
Released (5.4.0-1013.16)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

focal Not vulnerable
(5.11.0-22.23~20.04.1)
upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.11.0-1015.16~20.04.1)
hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

linux-oem-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)
hirsute Does not exist

upstream
Released (5.13~rc1)
impish Does not exist

jammy Does not exist

linux-aws-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

focal Not vulnerable
(5.11.0-1009.9~20.04.2)
upstream
Released (5.13~rc1)
jammy Does not exist

linux-azure-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

focal Not vulnerable
(5.11.0-1007.7~20.04.2)
upstream
Released (5.13~rc1)
jammy Does not exist

linux-oracle-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

focal Not vulnerable
(5.11.0-1008.8~20.04.1)
upstream
Released (5.13~rc1)
jammy Does not exist

linux
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-20.21+21.10.1)
jammy Not vulnerable
(5.13.0-19.19)
xenial
Released (4.4.0-219.252)
bionic
Released (4.15.0-151.157)
focal
Released (5.4.0-77.86)
groovy
Released (5.8.0-61.68)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.13~rc1)
hirsute
Released (5.11.0-22.23)
linux-hwe
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-151.157~16.04.1)
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-hwe-5.8
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal
Released (5.8.0-63.71~20.04.1)
upstream
Released (5.13~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-lts-trusty
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

precise Ignored
(was needs-triage ESM criteria)
upstream
Released (5.13~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty
Released (4.4.0-219.252~14.04.1)
upstream
Released (5.13~rc1)
linux-aws
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1009.9+21.10.1)
jammy Not vulnerable
(5.13.0-1005.6)
precise Does not exist

xenial
Released (4.4.0-1135.149)
bionic
Released (4.15.0-1109.116)
focal
Released (5.4.0-1051.53)
groovy
Released (5.8.0-1039.41)
hirsute
Released (5.11.0-1011.11)
trusty
Released (4.4.0-1099.104)
upstream
Released (5.13~rc1)
linux-aws-5.0
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-aws-5.3
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-aws-5.4
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1051.53~18.04.1)
upstream
Released (5.13~rc1)
linux-aws-hwe
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-1109.116~16.04.1)
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-azure
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1007.7+21.10.1)
jammy Not vulnerable
(5.13.0-1006.7)
precise Does not exist

xenial
Released (4.15.0-1121.134~16.04.1)
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1051.53)
groovy
Released (5.8.0-1037.39)
hirsute
Released (5.11.0-1009.9)
trusty
Released (4.15.0-1121.134~14.04.1)
upstream
Released (5.13~rc1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1121.134)
upstream
Released (5.13~rc1)
linux-azure-5.3
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-azure-5.4
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1051.53~18.04.1)
upstream
Released (5.13~rc1)
linux-dell300x
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1027.32)
upstream
Released (5.13~rc1)
linux-azure-edge
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1106.120)
upstream
Released (5.13~rc1)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-gcp-edge
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-gke-4.15
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc1)
linux-gke-5.0
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc1)
linux-gke-5.3
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needed now end-of-life)
upstream
Released (5.13~rc1)
linux-gke-5.4
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1046.48~18.04.1)
upstream
Released (5.13~rc1)
linux-oracle
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1008.8+21.10.1)
jammy Not vulnerable
(5.13.0-1008.10)
precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-1078.86~16.04.1)
bionic
Released (4.15.0-1078.86)
focal
Released (5.4.0-1048.52)
groovy
Released (5.8.0-1035.36)
hirsute
Released (5.11.0-1010.10)
upstream
Released (5.13~rc1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-oracle-5.3
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.13~rc1)
linux-oracle-5.4
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1048.52~18.04.1)
upstream
Released (5.13~rc1)
linux-oem
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

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

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc1)
linux-oem-osp1
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

focal Ignored
(replaced by linux-raspi)
groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1092.98)
upstream
Released (5.13~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-ibm
Launchpad, Ubuntu, Debian
impish Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

focal Not vulnerable
(5.4.0-1003.4)
upstream
Released (5.13~rc1)
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

focal Not vulnerable
(5.11.0-1009.10~20.04.1)
upstream
Released (5.13~rc1)
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~rc1)
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~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1009.10~20.04.2)
upstream
Released (5.13~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-21.21~20.04.1)
impish Does not exist

upstream
Released (5.13~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-1008.9~20.04.2)
impish Does not exist

upstream
Released (5.13~rc1)
jammy Does not exist

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

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.13~rc1)
xenial Not vulnerable
(4.4.0-1073.79)
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~rc1)
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~rc1)
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~rc1)
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~rc1)
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