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CVE-2021-3609

Published: 21 June 2021

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

From the Ubuntu security team

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code.

Priority

High

CVSS 3 base score: 7.0

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
trusty Ignored
(ESM criteria, not a high on 4.4 or earlier)
xenial Ignored
(ESM criteria, not a high on 4.4 or earlier)
bionic
Released (4.15.0-147.151)
upstream
Released (5.14~rc1)
hirsute
Released (5.11.0-22.23)
focal
Released (5.4.0-77.86)
groovy
Released (5.8.0-59.66)
impish Not vulnerable
(5.13.0-16.16)
jammy Not vulnerable
(5.13.0-19.19)
linux-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial
Released (4.15.0-147.151~16.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
bionic
Released (5.3.0-75.71)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-77.86~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal
Released (5.8.0-59.66~20.04.1)
upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
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(superseded by linux-hwe)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(superseded by linux-hwe-5.4)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 (5.14~rc1)
impish Does not exist

jammy Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
trusty Ignored
(ESM criteria, not a high on 4.4 or earlier)
xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Ignored
(ESM criteria, not a high on 4.4 or earlier)
bionic
Released (4.15.0-1094.96)
focal
Released (5.4.0-1044.46)
groovy
Released (5.8.0-1030.32)
upstream
Released (5.14~rc1)
hirsute
Released (5.11.0-1012.13)
impish Not vulnerable
(5.13.0-1002.2)
jammy Not vulnerable
(5.13.0-1004.4)
linux-aws
Launchpad, Ubuntu, Debian
trusty Ignored
(ESM criteria, not a high on 4.4)
xenial Ignored
(ESM criteria, not a high on 4.4)
upstream
Released (5.14~rc1)
hirsute
Released (5.11.0-1011.11)
bionic
Released (4.15.0-1106.113)
focal
Released (5.4.0-1051.53)
groovy
Released (5.8.0-1038.40)
impish Not vulnerable
(5.11.0-1015.16+21.10.1)
jammy Not vulnerable
(5.13.0-1005.6)
linux-aws-5.0
Launchpad, Ubuntu, Debian
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 (5.14~rc1)
impish Does not exist

jammy Does not exist

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

jammy Does not exist

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

jammy Does not exist

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

xenial
Released (4.15.0-1106.113~16.04.1)
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
hirsute
Released (5.11.0-1009.9)
upstream
Released (5.14~rc1)
focal
Released (5.4.0-1051.53)
groovy
Released (5.8.0-1036.38)
trusty
Released (4.15.0-1118.131~14.04.1)
xenial
Released (4.15.0-1118.131~16.04.1)
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
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
bionic
Released (4.15.0-1118.131)
impish Does not exist

jammy Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
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 (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
bionic
Released (5.4.0-1051.53~18.04.1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
bionic
Released (4.15.0-1022.26)
impish Does not exist

jammy Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
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 (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial
Released (4.15.0-1103.116~16.04.1)
bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1046.49)
upstream
Released (5.14~rc1)
hirsute
Released (5.11.0-1011.12)
groovy
Released (5.8.0-1035.37)
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
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1103.116)
upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
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 (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-1046.49~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

jammy Does not exist

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

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

focal
Released (5.4.0-1046.48)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Needs triage

linux-gke-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.3.0-1044.47)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-1046.48~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1018.19)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-1018.19~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial
Released (4.15.0-1075.83~16.04.1)
bionic
Released (4.15.0-1075.83)
focal
Released (5.4.0-1048.52)
groovy
Released (5.8.0-1033.34)
hirsute
Released (5.11.0-1010.10)
upstream
Released (5.14~rc1)
impish Not vulnerable
(5.11.0-1015.16+21.10.1)
jammy Not vulnerable
(5.13.0-1008.10)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
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 (5.14~rc1)
impish Does not exist

jammy Does not exist

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

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-1048.52~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Ignored
(superseded by linux-hwe)
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.10.0-1033.34)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1038.41)
groovy
Released (5.8.0-1029.32)
hirsute
Released (5.11.0-1012.13)
upstream
Released (5.14~rc1)
impish Not vulnerable
(5.13.0-1007.8)
jammy Not vulnerable
(5.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(was needs-triage now end-of-life)
bionic
Released (4.15.0-1089.94)
focal Ignored
(replaced by linux-raspi)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.3.0-1041.43)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic
Released (5.4.0-1038.41~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy
Released (5.8.0-29.31)
hirsute
Released (5.11.0-1012.12)
upstream
Released (5.14~rc1)
impish Not vulnerable
(5.13.0-1003.3)
jammy Not vulnerable
(5.13.0-1004.4)
linux-snapdragon
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic
Released (4.15.0-1106.115)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
xenial Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
focal
Released (5.8.0-1038.40~20.04.1)
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

groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
focal
Released (5.8.0-1036.38~20.04.1)
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

groovy Does not exist

hirsute Does not exist

focal
Released (5.8.0-1035.37~20.04.1)
upstream
Released (5.14~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

groovy Does not exist

hirsute Does not exist

focal
Released (5.8.0-1033.34~20.04.1)
upstream
Released (5.14~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
Released (5.8.0-29.31~20.04.1)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1016.19)
hirsute Does not exist

upstream
Released (5.14~rc1)
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 (5.14~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

hirsute Does not exist

focal Not vulnerable
(5.11.0-1015.16~20.04.1)
upstream
Released (5.14~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

hirsute Does not exist

upstream
Released (5.14~rc1)
impish Does not exist

focal
Released (5.13.0-1012.16)
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

upstream
Released (5.14~rc1)
focal
Released (5.11.0-1014.15~20.04.1)
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

upstream
Released (5.14~rc1)
focal
Released (5.11.0-1012.13~20.04.1)
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

upstream
Released (5.14~rc1)
impish Does not exist

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

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 (5.14~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

upstream
Released (5.14~rc1)
focal
Released (5.11.0-1014.16~20.04.1)
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 (5.14~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 (5.14~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 (5.14~rc1)
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 (5.14~rc1)
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 (5.14~rc1)
jammy Does not exist

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

xenial Needed

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.14~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-1011.13~20.04.2)
impish Does not exist

upstream
Released (5.14~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-1008.9~20.04.3)
impish Does not exist

upstream
Released (5.14~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Not vulnerable
(5.4.0-1010.11~18.04.2)
focal Does not exist

impish Does not exist

upstream
Released (5.14~rc1)
jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.4.0-1063.66+cvm2.2)
impish Does not exist

upstream
Released (5.14~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