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CVE-2021-38198

Published: 8 August 2021

arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.

From the Ubuntu security team

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly compute the access permissions for shadow pages in some situations. A local attacker could use this to cause a denial of service.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hirsute
Released (5.11.0-31.33)
trusty Ignored
(was needed ESM criteria)
xenial
Released (4.4.0-222.255)
impish Not vulnerable
(5.13.0-14.14)
upstream
Released (5.13~rc6)
bionic
Released (4.15.0-161.169)
focal
Released (5.4.0-89.100)
jammy Not vulnerable
(5.13.0-19.19)
linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

hirsute Does not exist

trusty Does not exist

impish Does not exist

xenial
Released (4.15.0-161.169~16.04.1)
upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-89.100~18.04.1)
jammy Does not exist

linux-hwe-5.8
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~rc6)
focal Ignored
(was pending [5.8.0-67.75] now end-of-life)
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(superseded by linux-hwe-5.4)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

trusty Does not exist

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(superseded by linux-hwe)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

upstream
Released (5.13~rc6)
jammy Does not exist

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

focal Does not exist

hirsute Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
trusty
Released (4.4.0-222.255~14.04.1)
jammy Does not exist

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(superseded by linux-aws-5.3)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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-1058.61~18.04.3)
jammy Does not exist

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

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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

focal Does not exist

hirsute Does not exist

trusty Does not exist

impish Does not exist

xenial
Released (4.15.0-1113.120~16.04.1)
upstream
Released (5.13~rc6)
jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1062.65)
impish Not vulnerable
(5.11.0-1013.14+21.10.1)
trusty
Released (4.15.0-1125.138~14.04.1)
xenial
Released (4.15.0-1125.138~16.04.1)
upstream
Released (5.13~rc6)
hirsute
Released (5.11.0-1013.14)
jammy Not vulnerable
(5.13.0-1006.7)
linux-azure-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (4.15.0-1125.138)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-1062.65~18.04.1)
jammy Does not exist

linux-azure-5.8
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~rc6)
focal Ignored
(was pending [5.8.0-1043.46~20.04.1] now end-of-life)
jammy Does not exist

linux-bluefield
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~rc6)
focal
Released (5.4.0-1020.23)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (4.15.0-1029.34)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

impish Not vulnerable
(5.11.0-1016.18+21.10.2)
xenial
Released (4.15.0-1110.124~16.04.1)
hirsute
Released (5.11.0-1017.19)
upstream
Released (5.13~rc6)
focal
Released (5.4.0-1056.60)
jammy Not vulnerable
(5.13.0-1005.6)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (4.15.0-1110.124)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-1056.60~18.04.1)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc6)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

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

upstream
Released (5.13~rc6)
focal
Released (5.4.0-1054.57)
jammy Not vulnerable
(5.15.0-1002.2)
linux-gke-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.13~rc6)
bionic Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial 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

upstream
Released (5.13~rc6)
bionic Ignored
(was needs-triage now end-of-life)
trusty Does not exist

xenial 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

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

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-1054.57~18.04.1)
jammy Does not exist

linux-gkeop
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~rc6)
focal
Released (5.4.0-1025.26)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-1025.26~18.04.1)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
bionic
Released (5.4.0-1056.60~18.04.1)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc6)
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)
trusty Does not exist

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

upstream
Released (5.13~rc6)
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)
trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

focal
Released (5.10.0-1038.40)
hirsute Does not exist

upstream
Released (5.13~rc6)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

trusty Does not exist

xenial Does not exist

impish Not vulnerable
(5.13.0-1006.7)
focal
Released (5.4.0-1045.49)
upstream
Released (5.13~rc6)
hirsute
Released (5.11.0-1016.17)
jammy Not vulnerable
(5.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
focal Ignored
(replaced by linux-raspi)
hirsute Does not exist

trusty Does not exist

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

bionic
Released (4.15.0-1097.103)
upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

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

xenial Does not exist

impish Does not exist

upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.13~rc6)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic
Released (5.4.0-1045.49~18.04.1)
jammy Does not exist

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

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

xenial Does not exist

impish Not vulnerable
(5.13.0-1002.2)
upstream
Released (5.13~rc6)
hirsute
Released (5.11.0-1017.18)
jammy Not vulnerable
(5.13.0-1004.4)
linux-riscv-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.13~rc6)
jammy Does not exist

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

hirsute Does not exist

trusty Does not exist

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

bionic
Released (4.15.0-1114.123)
upstream
Released (5.13~rc6)
jammy Does not exist

linux-hwe-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~rc6)
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

trusty Does not exist

xenial Does not exist

impish Does not exist

focal
Released (5.11.0-1017.18~20.04.1)
upstream
Released (5.13~rc6)
jammy Does not exist

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

xenial
Released (4.4.0-1103.112)
impish Not vulnerable
(5.13.0-1001.1)
bionic
Released (4.15.0-1101.103)
focal
Released (5.4.0-1048.50)
upstream
Released (5.13~rc6)
hirsute
Released (5.11.0-1014.15)
jammy Not vulnerable
(5.13.0-1004.4)
linux-aws
Launchpad, Ubuntu, Debian
trusty
Released (4.4.0-1102.107)
xenial
Released (4.4.0-1138.152)
impish Not vulnerable
(5.11.0-1015.16+21.10.1)
focal
Released (5.4.0-1058.61)
upstream
Released (5.13~rc6)
bionic
Released (4.15.0-1114.121)
hirsute
Released (5.11.0-1016.17)
jammy Not vulnerable
(5.13.0-1005.6)
linux-oracle
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial
Released (4.15.0-1082.90~16.04.1)
impish Not vulnerable
(5.11.0-1015.16+21.10.1)
upstream
Released (5.13~rc6)
hirsute
Released (5.11.0-1016.17)
bionic
Released (4.15.0-1082.90)
focal
Released (5.4.0-1056.60)
jammy Not vulnerable
(5.13.0-1008.10)
linux-oem-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Does not exist

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

upstream
Released (5.13~rc6)
jammy Does not exist

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

xenial Does not exist

impish Does not exist

bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc6)
focal
Released (5.11.0-1016.17~20.04.1)
jammy Does not exist

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

xenial Does not exist

impish Does not exist

bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc6)
focal
Released (5.11.0-1013.14~20.04.1)
jammy Does not exist

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

xenial Does not exist

impish Does not exist

bionic Does not exist

hirsute Does not exist

upstream
Released (5.13~rc6)
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

focal
Released (5.4.0-1006.7)
hirsute Does not exist

upstream
Released (5.13~rc6)
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
Released (5.11.0-1017.19~20.04.1)
upstream
Released (5.13~rc6)
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~rc6)
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~rc6)
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~rc6)
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~rc6)
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~rc6)
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~rc6)
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~rc6)
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~rc6)
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~rc6)
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 Not vulnerable
(5.4.0-1063.66+cvm2.2)
upstream
Released (5.13~rc6)
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