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.

CVSS v3.0 3.3 LOW
CVSS v2.0 2.1 LOW

3.3^/10

CVSS v3.0 : LOW

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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 Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1094825	Issue Tracking Patch Third Party Advisory
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

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::

Information

Published : 2018-10-17 13:29

Updated : 2019-04-23 10:29

NVD link : CVE-2018-18386

Mitre link : CVE-2018-18386

JSON object : View

CWE

CWE-704

Incorrect Type Conversion or Cast

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Products Affected

canonical

ubuntu_linux

linux

linux_kernel

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