CVE-2018-18386

drivers/tty/n_tty.c in the Linux kernel before 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
3.3 LOW
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
mitreCNA
---
---
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
VendorProductVersion
linuxlinux_kernel
𝑥
< 4.14.11
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
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
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
cosmic
not-affected
bionic
not-affected
xenial
Fixed 4.4.0-119.143
released
trusty
Fixed 3.13.0-164.214
released
linux-aws
cosmic
not-affected
bionic
not-affected
xenial
Fixed 4.4.0-1054.63
released
trusty
Fixed 4.4.0-1016.16
released
linux-aws-hwe
cosmic
dne
bionic
dne
xenial
not-affected
trusty
dne
linux-azure
cosmic
not-affected
bionic
not-affected
xenial
Fixed 4.15.0-1013.13~16.04.2
released
trusty
not-affected
linux-azure-edge
cosmic
dne
bionic
not-affected
xenial
Fixed 4.15.0-1013.13~16.04.2
released
trusty
dne
linux-euclid
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-flo
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-gcp
cosmic
not-affected
bionic
not-affected
xenial
Fixed 4.15.0-1014.14~16.04.1
released
trusty
dne
linux-gcp-edge
cosmic
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gke
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-goldfish
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-grouper
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe
cosmic
dne
bionic
not-affected
xenial
Fixed 4.15.0-24.26~16.04.1
released
trusty
dne
linux-hwe-edge
cosmic
dne
bionic
not-affected
xenial
Fixed 4.15.0-24.26~16.04.1
released
trusty
dne
linux-kvm
cosmic
not-affected
bionic
not-affected
xenial
Fixed 4.4.0-1020.25
released
trusty
dne
linux-lts-trusty
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-utopic
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-vivid
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-wily
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
cosmic
dne
bionic
dne
xenial
dne
trusty
Fixed 4.4.0-119.143~14.04.1
released
linux-maguro
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-mako
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-manta
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
cosmic
not-affected
bionic
not-affected
xenial
ignored
trusty
dne
linux-oracle
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-raspi2
cosmic
not-affected
bionic
not-affected
xenial
Fixed 4.4.0-1086.94
released
trusty
dne
linux-snapdragon
cosmic
dne
bionic
not-affected
xenial
Fixed 4.4.0-1088.93
released
trusty
dne
Common Weakness Enumeration
References
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348
https://access.redhat.com/errata/RHSA-2019:0831
https://bugzilla.suse.com/show_bug.cgi?id=1094825
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11
https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348
https://usn.ubuntu.com/3849-1/
https://usn.ubuntu.com/3849-2/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348
https://access.redhat.com/errata/RHSA-2019:0831
https://bugzilla.suse.com/show_bug.cgi?id=1094825
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11
https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348
https://usn.ubuntu.com/3849-1/
https://usn.ubuntu.com/3849-2/