Description
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.
Scores
CVSS v3
3.3
EPSS
0.0004
EPSS Percentile
12.1%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Details
CWE
CWE-704
Status
published
Products (3)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
linux/linux_kernel
< 4.14.11
Published
Oct 17, 2018
Tracked Since
Feb 18, 2026