CVE-2018-18653

EUVD-2018-10369
The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading arbitrary kernel modules. This occurs because a modified kernel/module.c, in conjunction with certain configuration options, leads to mishandling of the result of signature verification.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Affected Products (NVD)
VendorProductVersion
canonicalubuntu_linux
18.10
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
buster
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 4.18.0-12.13
released
trusty
not-affected
xenial
not-affected
linux-aws
bionic
not-affected
cosmic
Fixed 4.18.0-1006.7
released
trusty
not-affected
xenial
not-affected
linux-aws-hwe
bionic
dne
cosmic
dne
trusty
dne
xenial
not-affected
linux-azure
bionic
not-affected
cosmic
Fixed 4.18.0-1006.6
released
trusty
not-affected
xenial
not-affected
linux-azure-edge
bionic
not-affected
cosmic
dne
trusty
dne
xenial
not-affected
linux-euclid
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-flo
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-gcp
bionic
not-affected
cosmic
Fixed 4.18.0-1004.5
released
trusty
dne
xenial
not-affected
linux-gcp-edge
bionic
not-affected
cosmic
dne
trusty
dne
xenial
dne
linux-gke
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-goldfish
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-grouper
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-hwe
bionic
not-affected
cosmic
dne
trusty
dne
xenial
not-affected
linux-hwe-edge
bionic
not-affected
cosmic
dne
trusty
dne
xenial
not-affected
linux-kvm
bionic
not-affected
cosmic
Fixed 4.18.0-1005.5
released
trusty
dne
xenial
not-affected
linux-lts-trusty
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-utopic
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-vivid
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-wily
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-xenial
bionic
dne
cosmic
dne
trusty
not-affected
xenial
dne
linux-maguro
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-mako
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-manta
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-oem
bionic
not-affected
cosmic
not-affected
trusty
dne
xenial
ignored
linux-oracle
bionic
not-affected
cosmic
not-affected
trusty
dne
xenial
not-affected
linux-raspi2
bionic
not-affected
cosmic
Fixed 4.18.0-1007.9
released
trusty
dne
xenial
not-affected
linux-snapdragon
bionic
not-affected
cosmic
dne
trusty
dne
xenial
not-affected
Common Weakness Enumeration
References
https://launchpad.net/bugs/1798863
https://usn.ubuntu.com/3832-1/
https://usn.ubuntu.com/3835-1/
https://launchpad.net/bugs/1798863
https://usn.ubuntu.com/3832-1/
https://usn.ubuntu.com/3835-1/