What is CVE-2018-18386?

CVE-2018-18386 is a Low severity Linux kernel vulnerability with a CVSS score of 3.3 out of 10, classified as a Incorrect Type Conversion or Cast flaw (CWE-704). CVE-2018-18386 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-18386?

CVE-2018-18386 has a CVSS score of 3.3 out of 10, rated Low severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Is there a patch available for CVE-2018-18386?

No patch is currently available for CVE-2018-18386. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-18386 actively exploited?

CVE-2018-18386 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Incorrect Type Conversion or Cast (CWE-704)?

The product does not correctly convert an object, resource, or structure from one type to another. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/704.html

CVE-2018-18386

Low

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.

Package Linux Kernel

Published 2018-10-17

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

3.3

out of 10

Low

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Vector string

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness type

CWE-704

CVE-2018-18386 is a Incorrect Type Conversion or Cast vulnerability

What is Incorrect Type Conversion or Cast?

The product does not correctly convert an object, resource, or structure from one type to another. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2018-18386 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2019:0831
Ubuntu Security
https://usn.ubuntu.com/3849-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3849-2/

Third Party Advisory
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348
Patch
Kernel patch commit
https://bugzilla.suse.com/show_bug.cgi?id=1094825
Patch
Kernel patch commit
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2018-18386

Severity Low

CVSS score 3.3 / 10

CVSS version 3.0

Published 2018-10-17

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-18386?

CVE-2018-18386 is a Low severity Linux kernel vulnerability with a CVSS score of 3.3 out of 10 , classified as an Incorrect Type Conversion or Cast flaw (CWE-704) . CVE-2018-18386 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-18386?

CVE-2018-18386 has a CVSS score of 3.3 out of 10, rated Low severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Is there a patch available for CVE-2018-18386?

No patch is currently available for CVE-2018-18386. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-18386 actively exploited?

No — CVE-2018-18386 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Incorrect Type Conversion or Cast (CWE-704)?

The product does not correctly convert an object, resource, or structure from one type to another. View CWE-704 on MITRE CWE →