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CVE-2022-2503

Published: 12 August 2022

Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5

From the Ubuntu security team

It was discovered that the device-mapper verity (dm-verity) driver in the Linux kernel did not properly verify targets being loaded into the device- mapper table. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 6.7

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-191.202)
focal
Released (5.4.0-126.142)
jammy
Released (5.15.0-47.51)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.19~rc1)
xenial Ignored
(was needed ESM criteria)
Patches:
Introduced by

a4ffc152198efba2ed9e6eac0eb97f17bfebce85

Fixed by 4caae58406f8ceb741603eee460d79bacca9b1b5
linux-aws
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1139.150)
focal
Released (5.4.0-1085.92)
jammy
Released (5.15.0-1019.23)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.19~rc1)
xenial Ignored
(was needed ESM criteria)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-aws-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-aws-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.15)
xenial Does not exist

linux-aws-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1019.23~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.4)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1085.92~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-aws-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-aws-5.11)
xenial Does not exist

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

focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Pending
(4.15.0-1139.150~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1091.96)
jammy
Released (5.15.0-1019.24)
trusty Pending
(4.15.0-1149.164~14.04.1)
upstream
Released (5.19~rc1)
xenial Pending
(4.15.0-1149.164~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1149.164)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-azure-5.13)
trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-azure-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.15)
xenial Does not exist

linux-azure-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1019.24~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.4)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1091.96~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-azure-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-azure-5.11)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Pending
(5.4.0-1091.96+cvm1.1)
jammy
Released (5.15.0-1019.24)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal
Released (5.4.0-1046.51)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1051.56)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Does not exist

hirsute Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(was needed ESM criteria)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal Pending
(5.4.0-1088.96)
jammy
Released (5.15.0-1017.23)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Pending
(4.15.0-1134.150~16.04.2)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1134.150)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-gcp-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-gcp-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.15)
xenial Does not exist

linux-gcp-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1017.23~20.04.2)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.4)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic Pending
(5.4.0-1088.96~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-gcp-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gcp-5.11)
xenial Does not exist

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

focal Pending
(5.4.0-1082.88)
jammy
Released (5.15.0-1015.18)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(reached end of standard support)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-gke-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1015.18~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-gke-5.4)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal
Released (5.4.0-1053.56)
jammy
Released (5.15.0-1002.4)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Pending
(4.15.0-191.202~16.04.1)
linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-hwe-5.15)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.15)
xenial Does not exist

linux-hwe-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-48.54~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-126.142~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-hwe-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-hwe-5.11)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-ibm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1033.37)
jammy
Released (5.15.0-1013.15)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1033.37~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

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

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-intel-iotg
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (5.15.0-1015.20)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Pending
(5.15.0-1015.20~20.04.2)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1125.130)
focal
Released (5.4.0-1075.80)
jammy
Released (5.15.0-1017.21)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(was needed ESM criteria)
linux-lowlatency
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (5.15.0-47.53)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-48.54~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Does not exist

jammy Does not exist

trusty Ignored
(was needed ESM criteria)
upstream
Released (5.19~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(superseded by linux-hwe)
linux-oem-5.10
Launchpad, Ubuntu, Debian
bionic Does not exist

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

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-oem-5.14)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oem-5.14)
xenial Does not exist

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

focal Pending
(5.14.0-1044.49)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Does not exist

jammy Pending
(5.17.0-1013.14)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

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

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1104.115)
focal
Released (5.4.0-1083.91)
jammy
Released (5.15.0-1017.22)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Pending
(4.15.0-1104.115~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-oracle-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.13)
xenial Does not exist

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

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

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.4)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1083.91~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-oracle-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-oracle-5.11)
xenial Does not exist

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

focal
Released (5.4.0-1070.80)
jammy
Released (5.15.0-1014.16)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1070.80~18.04.1)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1117.125)
focal Ignored
(replaced by linux-raspi)
jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(end of standard support)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-raspi-5.4)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-raspi2-5.4)
xenial Does not exist

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

focal Ignored
(superseded by linux-riscv-5.8)
jammy Pending
(5.15.0-1018.21)
trusty Does not exist

upstream
Released (5.19~rc1)
xenial Does not exist

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

focal Ignored
(superseded by linux-riscv-5.13)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-riscv-5.13)
xenial Does not exist

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

focal Ignored
(superseded by linux-riscv-5.11)
jammy Does not exist

trusty Does not exist

upstream Ignored
(superseded by linux-riscv-5.11)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1135.145)
focal Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.19~rc1)
xenial Ignored
(end of standard support)