CVE-2018-10853

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7 HIGH
LOCAL
HIGH
LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
redhatCNA
7 HIGH
LOCAL
HIGH
LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
VendorProductVersion
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
debiandebian_linux
8.0
linuxlinux_kernel
𝑥
< 4.18
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
sid
6.11.5-1
fixed
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-36.39
released
artful
ignored
xenial
Fixed 4.4.0-133.159
released
trusty
ignored
linux-aws
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-1023.23
released
artful
dne
xenial
Fixed 4.4.0-1065.75
released
trusty
Fixed 4.4.0-1027.30
released
linux-aws-hwe
disco
dne
cosmic
dne
bionic
dne
xenial
not-affected
trusty
dne
linux-azure
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-1025.26
released
artful
dne
xenial
Fixed 4.15.0-1025.26~16.04.1
released
trusty
Fixed 4.15.0-1030.31~14.04.1
released
linux-azure-edge
disco
dne
cosmic
dne
bionic
Fixed 4.15.0-1025.26
released
artful
dne
xenial
Fixed 4.15.0-1025.26~16.04.1
released
trusty
dne
linux-euclid
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
not-affected
trusty
dne
linux-flo
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
ignored
trusty
dne
linux-gcp
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-1021.22
released
artful
dne
xenial
Fixed 4.15.0-1021.22~16.04.1
released
trusty
dne
linux-gcp-edge
disco
dne
cosmic
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gke
disco
dne
cosmic
dne
bionic
not-affected
artful
dne
xenial
ignored
trusty
dne
linux-goldfish
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
ignored
trusty
dne
linux-grouper
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
dne
linux-hwe
disco
dne
cosmic
dne
bionic
not-affected
artful
dne
xenial
Fixed 4.15.0-36.39~16.04.1
released
trusty
dne
linux-hwe-edge
disco
dne
cosmic
dne
bionic
not-affected
artful
dne
xenial
Fixed 4.15.0-36.39~16.04.1
released
trusty
dne
linux-kvm
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-1023.23
released
artful
dne
xenial
Fixed 4.4.0-1031.37
released
trusty
dne
linux-lts-trusty
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
dne
linux-lts-utopic
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
ignored
linux-lts-vivid
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
ignored
linux-lts-wily
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
ignored
linux-lts-xenial
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
Fixed 4.4.0-133.159~14.04.1
released
linux-maguro
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
dne
linux-mako
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
ignored
trusty
dne
linux-manta
disco
dne
cosmic
dne
bionic
dne
artful
dne
xenial
dne
trusty
dne
linux-oem
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-1021.24
released
artful
dne
xenial
ignored
trusty
dne
linux-oracle
disco
not-affected
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-raspi2
disco
not-affected
cosmic
not-affected
bionic
Fixed 4.15.0-1024.26
released
artful
ignored
xenial
Fixed 4.4.0-1094.102
released
trusty
dne
linux-snapdragon
disco
not-affected
cosmic
dne
bionic
Fixed 4.15.0-1053.57
released
artful
ignored
xenial
Fixed 4.4.0-1098.103
released
trusty
dne
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
https://access.redhat.com/errata/RHSA-2019:2029
https://access.redhat.com/errata/RHSA-2019:2043
https://access.redhat.com/errata/RHSA-2020:0036
https://access.redhat.com/errata/RHSA-2020:0103
https://access.redhat.com/errata/RHSA-2020:0179
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10853
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c9fa24ca7c9c47605672916491f79e8ccacb9e6
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://usn.ubuntu.com/3777-1/
https://usn.ubuntu.com/3777-2/
https://www.openwall.com/lists/oss-security/2018/09/02/1
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
https://access.redhat.com/errata/RHSA-2019:2029
https://access.redhat.com/errata/RHSA-2019:2043
https://access.redhat.com/errata/RHSA-2020:0036
https://access.redhat.com/errata/RHSA-2020:0103
https://access.redhat.com/errata/RHSA-2020:0179
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10853
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c9fa24ca7c9c47605672916491f79e8ccacb9e6
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://usn.ubuntu.com/3777-1/
https://usn.ubuntu.com/3777-2/
https://www.openwall.com/lists/oss-security/2018/09/02/1