CVE Vulnerability

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.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

3.3 /10

CVSS v3.0 : LOW

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348 Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 Release Notes Patch
https://bugzilla.suse.com/show_bug.cgi?id=1094825 Issue Tracking Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348 Patch Vendor Advisory
https://usn.ubuntu.com/3849-2/ Third Party Advisory
https://usn.ubuntu.com/3849-1/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0831
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
Information

Published : 2018-10-17 08:29

Updated : 2019-04-23 05:29

NVD link : CVE-2018-18386

Mitre link : CVE-2018-18386

Products Affected
No products.
CWE
CWE-704