CVE-2019-3887

EUVD-2019-13497
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.6 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
redhatCNA
6.7 MEDIUM
LOCAL
HIGH
HIGH
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
4.16 ≤
canonicalubuntu_linux
18.04
canonicalubuntu_linux
18.10
canonicalubuntu_linux
19.04
redhatenterprise_linux
8.0
redhatenterprise_linux_eus
8.1
redhatenterprise_linux_eus
8.2
redhatenterprise_linux_eus
8.4
redhatenterprise_linux_for_real_time_for_nfv_tus
8.2
redhatenterprise_linux_for_real_time_for_nfv_tus
8.4
redhatenterprise_linux_for_real_time_tus
8.2
redhatenterprise_linux_for_real_time_tus
8.4
redhatenterprise_linux_server_aus
8.2
redhatenterprise_linux_server_aus
8.4
redhatenterprise_linux_server_tus
8.2
redhatenterprise_linux_server_tus
8.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
jessie
not-affected
sid
6.11.6-1
fixed
stretch
not-affected
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
bionic
not-affected
cosmic
Fixed 4.18.0-20.21
released
disco
Fixed 5.0.0-15.16
released
trusty
not-affected
xenial
not-affected
linux-aws
bionic
not-affected
cosmic
Fixed 4.18.0-1016.18
released
disco
Fixed 5.0.0-1006.6
released
trusty
not-affected
xenial
not-affected
linux-aws-hwe
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
not-affected
linux-azure
bionic
Fixed 4.18.0-1018.18~18.04.1
released
cosmic
Fixed 4.18.0-1018.18
released
disco
Fixed 5.0.0-1006.6
released
trusty
not-affected
xenial
not-affected
linux-azure-edge
bionic
Fixed 4.18.0-1018.18~18.04.1
released
cosmic
dne
disco
dne
trusty
dne
xenial
not-affected
linux-euclid
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
not-affected
linux-flo
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
ignored
linux-gcp
bionic
not-affected
cosmic
Fixed 4.18.0-1011.12
released
disco
Fixed 5.0.0-1006.6
released
trusty
dne
xenial
not-affected
linux-gcp-edge
bionic
Fixed 4.18.0-1011.12~18.04.1
released
cosmic
dne
disco
dne
trusty
dne
xenial
dne
linux-gke
bionic
not-affected
cosmic
dne
disco
dne
trusty
dne
xenial
ignored
linux-goldfish
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
ignored
linux-grouper
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
dne
linux-hwe
bionic
Fixed 4.18.0-20.21~18.04.1
released
cosmic
dne
disco
dne
trusty
dne
xenial
not-affected
linux-hwe-edge
bionic
not-affected
cosmic
dne
disco
dne
trusty
dne
xenial
not-affected
linux-kvm
bionic
not-affected
cosmic
Fixed 4.18.0-1012.12
released
disco
Fixed 5.0.0-1006.6
released
trusty
dne
xenial
not-affected
linux-lts-trusty
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
dne
linux-lts-utopic
bionic
dne
cosmic
dne
disco
dne
trusty
ignored
xenial
dne
linux-lts-vivid
bionic
dne
cosmic
dne
disco
dne
trusty
ignored
xenial
dne
linux-lts-wily
bionic
dne
cosmic
dne
disco
dne
trusty
ignored
xenial
dne
linux-lts-xenial
bionic
dne
cosmic
dne
disco
dne
trusty
not-affected
xenial
dne
linux-maguro
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
dne
linux-mako
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
ignored
linux-manta
bionic
dne
cosmic
dne
disco
dne
trusty
dne
xenial
dne
linux-oem
bionic
not-affected
cosmic
not-affected
disco
not-affected
trusty
dne
xenial
ignored
linux-oracle
bionic
not-affected
cosmic
not-affected
disco
not-affected
trusty
dne
xenial
not-affected
linux-raspi2
bionic
not-affected
cosmic
Fixed 4.18.0-1014.16
released
disco
Fixed 5.0.0-1008.8
released
trusty
dne
xenial
not-affected
linux-snapdragon
bionic
not-affected
cosmic
dne
disco
Fixed 5.0.0-1012.12
released
trusty
dne
xenial
not-affected
Common Weakness Enumeration
References
http://www.securityfocus.com/bid/107850
https://access.redhat.com/errata/RHSA-2019:2703
https://access.redhat.com/errata/RHSA-2019:2741
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/
https://usn.ubuntu.com/3979-1/
https://usn.ubuntu.com/3980-1/
https://usn.ubuntu.com/3980-2/
http://www.securityfocus.com/bid/107850
https://access.redhat.com/errata/RHSA-2019:2703
https://access.redhat.com/errata/RHSA-2019:2741
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/
https://usn.ubuntu.com/3979-1/
https://usn.ubuntu.com/3980-1/
https://usn.ubuntu.com/3980-2/