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CVE-2021-37576

Published: 26 July 2021

arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.

From the Ubuntu security team

Alexey Kardashevskiy discovered that the KVM implementation for PowerPC systems in the Linux kernel did not properly validate RTAS arguments in some situations. An attacker in a guest vm could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-159.167)
upstream
Released (5.14~rc3)
trusty Ignored
(was needed ESM criteria)
impish Not vulnerable
(5.13.0-16.16)
xenial Ignored
(was needed ESM criteria)
focal
Released (5.4.0-88.99)
hirsute
Released (5.11.0-37.41)
jammy Not vulnerable
(5.13.0-19.19)
Patches:
Introduced by

8e591cb7204739efa8e15967ea334eb367039dde

Fixed by f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a
linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial
Released (4.15.0-159.167~16.04.1)
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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic
Released (5.4.0-87.98~18.04.1)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Ignored
(was needed 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(superseded by linux-hwe-5.4)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

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
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 (5.14~rc3)
trusty Ignored
(was needed ESM criteria)
xenial Does not exist

impish Does not exist

jammy Does not exist

linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Not vulnerable
(PPC only)
jammy Does not exist

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

focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Does not exist

jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Not vulnerable
(PPC only)
xenial Not vulnerable
(PPC only)
impish Not vulnerable
(5.13.0-1004.5)
focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

focal Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic
Released (4.15.0-1028.33)
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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Not vulnerable
(5.13.0-1003.4)
focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
jammy Not vulnerable
(5.13.0-1005.6)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Not vulnerable
(PPC only)
jammy Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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 (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Does not exist

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

hirsute Does not exist

bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
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

bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
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

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Not vulnerable
(PPC only)
jammy Not vulnerable
(5.15.0-1001.2)
linux-gkeop-5.4
Launchpad, Ubuntu, Debian
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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

bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

focal Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial 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 (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

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

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Not vulnerable
(5.13.0-1007.8)
focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
jammy Not vulnerable
(5.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
focal Not vulnerable
(PPC only)
hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

hirsute Does not exist

bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

jammy Does not exist

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

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

bionic Not vulnerable
(PPC only)
jammy Does not exist

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

focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Not vulnerable
(PPC only)
jammy Not vulnerable
(PPC only)
linux-riscv-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

focal Not vulnerable
(PPC only)
jammy Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
focal Does not exist

hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Does not exist

jammy Does not exist

linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
trusty Not vulnerable
(PPC only)
xenial Not vulnerable
(PPC only)
impish Not vulnerable
(PPC only)
focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
jammy Not vulnerable
(PPC only)
linux-kvm
Launchpad, Ubuntu, Debian
upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Not vulnerable
(5.13.0-1002.2)
bionic Not vulnerable
(PPC only)
focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
jammy Not vulnerable
(5.13.0-1004.4)
linux-oracle
Launchpad, Ubuntu, Debian
upstream
Released (5.14~rc3)
trusty Does not exist

xenial Not vulnerable
(PPC only)
impish Not vulnerable
(PPC only)
bionic Not vulnerable
(PPC only)
focal Not vulnerable
(PPC only)
hirsute Not vulnerable
(PPC only)
jammy Not vulnerable
(PPC only)
linux-bluefield
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(PPC only)
hirsute Does not exist

upstream
Released (5.14~rc3)
trusty Does not exist

xenial Does not exist

impish Does not exist

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 (5.14~rc3)
focal
Released (5.11.0-37.41~20.04.2)
jammy Does not exist

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

focal Not vulnerable
(PPC only)
hirsute Does not exist

trusty Does not exist

xenial Does not exist

impish Does not exist

upstream
Released (5.14~rc3)
jammy Does not exist

linux-oem-5.13
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 (5.14~rc3)
focal Not vulnerable
(PPC only)
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 (5.14~rc3)
focal Not vulnerable
(PPC only)
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

focal Not vulnerable
(PPC only)
upstream
Released (5.14~rc3)
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 (5.14~rc3)
focal Not vulnerable
(PPC only)
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
Released (5.4.0-1005.6)
upstream
Released (5.14~rc3)
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

focal
Released (5.11.0-1020.22~20.04.1)
hirsute Does not exist

impish Does not exist

upstream
Released (5.14~rc3)
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~rc3)
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
(5.13.0-1007.7)
hirsute Does not exist

impish Does not exist

upstream
Released (5.14~rc3)
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~rc3)
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~rc3)
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~rc3)
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 (5.14~rc3)
xenial Ignored
(was needed ESM criteria)
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 (5.14~rc3)
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 (5.14~rc3)
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 (5.14~rc3)
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 (5.14~rc3)
jammy Needs triage

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
(5.15.0-22.22)
upstream
Released (5.14~rc3)
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
(5.17.0-1003.3)
upstream
Released (5.14~rc3)
linux-intel-iotg
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
(5.15.0-1004.6)
upstream
Released (5.14~rc3)
linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

jammy Does not exist

focal Not vulnerable
(5.15.0-1003.5~20.04.1)
upstream
Released (5.14~rc3)
linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

jammy Does not exist

upstream Needs triage

focal Not vulnerable

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage