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
Status
Package | Release | Status |
---|---|---|
linux
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-44.47)
|
cosmic |
Released
(4.18.0-14.15)
|
|
trusty |
Not vulnerable
(3.11.0-12.19)
|
|
upstream |
Released
(4.20~rc5)
|
|
xenial |
Released
(4.4.0-142.168)
|
|
Patches:
Introduced by
5c919412fe61c35947816fdbd5f7bd09fe0dd073
|
||
linux-aws
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1032.34)
|
cosmic |
Released
(4.18.0-1008.10)
|
|
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
|
|
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)
|
|
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
|
|
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
|
|
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
|
|
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)
|
|
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
|
|
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
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.20~rc5)
|
|
xenial |
Ignored
(end of standard support)
|
|
linux-goldfish
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
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
|
|
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
|
|
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
|
|
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)
|
|
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
|
|
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
|
|
trusty |
Does not exist
(trusty was ignored [end 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
|
|
trusty |
Does not exist
(trusty was ignored [end 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
|
|
trusty |
Does not exist
(trusty was ignored [end 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
|
|
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
|
|
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
|
|
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
|
|
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)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.20~rc5)
|
|
xenial |
Ignored
(end of standard support, was needs-triage)
|
|
linux-oracle
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1008.10)
|
cosmic |
Not vulnerable
|
|
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)
|
|
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
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.20~rc5)
|
|
xenial |
Released
(4.4.0-1107.112)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
- https://lore.kernel.org/lkml/1542702858-4318-1-git-send-email-wanpengli@tencent.com/
- https://ubuntu.com/security/notices/USN-3871-1
- https://ubuntu.com/security/notices/USN-3872-1
- https://ubuntu.com/security/notices/USN-3871-3
- https://ubuntu.com/security/notices/USN-3871-4
- https://ubuntu.com/security/notices/USN-3878-1
- https://ubuntu.com/security/notices/USN-3879-1
- https://ubuntu.com/security/notices/USN-3879-2
- https://ubuntu.com/security/notices/USN-3871-5
- https://ubuntu.com/security/notices/USN-3878-2
- https://www.cve.org/CVERecord?id=CVE-2018-19407
- NVD
- Launchpad
- Debian