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CVE-2018-19407

Published: 20 November 2018

The vcpu_scan_ioapic function in arch/x86/kvm/x86.c in the Linux kernel through 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized.

From the Ubuntu security team

Wei Wu discovered that the KVM implementation in the Linux kernel did not properly ensure that ioapics were initialized. A local attacker could use this to cause a denial of service (system crash).

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-44.47)
cosmic
Released (4.18.0-14.15)
precise Ignored
(was needs-triage ESM criteria)
trusty Not vulnerable
(3.11.0-12.19)
upstream
Released (4.20~rc5)
xenial
Released (4.4.0-142.168)
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1032.34)
cosmic
Released (4.18.0-1008.10)
precise Does not exist

trusty
Released (4.4.0-1038.41)
upstream
Released (4.20~rc5)
xenial
Released (4.4.0-1075.85)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.15.0-1032.34~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1037.39)
cosmic
Released (4.18.0-1008.8)
precise Does not exist

trusty
Released (4.15.0-1037.39~14.04.2)
upstream
Released (4.20~rc5)
xenial
Released (4.15.0-1037.39~16.04.1)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1037.39)
cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.15.0-1037.39~16.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial Ignored
(was needs-triage ESM criteria)
linux-flo
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.20~rc5)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1027.28)
cosmic
Released (4.18.0-1006.7)
precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.15.0-1027.28~16.04.1)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic
Released (4.18.0-1006.7~18.04.1)
cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial Ignored
(end-of-life)
linux-goldfish
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.20~rc5)
xenial Ignored
(end-of-life)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.20~rc5)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (4.18.0-14.15~18.04.1)
cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.15.0-45.48~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-8.9~18.04.1)
cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.15.0-45.48~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1029.29)
cosmic
Released (4.18.0-1007.7)
precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.4.0-1040.46)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Ignored
(was needs-triage ESM criteria)
trusty Does not exist

upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty
Released (4.4.0-142.168~14.04.1)
upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.20~rc5)
xenial Does not exist

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

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.20~rc5)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.20~rc5)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1033.38)
cosmic
Released (4.15.0-1033.38)
precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial Ignored
(was needs-triage now end-of-life)
linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1008.10)
cosmic Not vulnerable

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.15.0-1008.10~16.04.1)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1031.33)
cosmic
Released (4.18.0-1009.11)
precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.4.0-1103.111)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.20~rc5)
xenial
Released (4.4.0-1107.112)