Description
A denial of service vulnerability was found in n_tty_receive_char_special in drivers/tty/n_tty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop (due to a changing ldata->read_head, and a missing sanity check) and cause a threat to the system availability.
Scores
CVSS v3
5.5
EPSS
0.0005
EPSS Percentile
15.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-697
Status
published
Products (1)
linux/linux_kernel
< 4.18
Published
Mar 23, 2021
Tracked Since
Feb 18, 2026