CVE-2018-18386

CVSS V2 Low 2.1 CVSS V3 Low 3.3
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.
Overview
  • CVE ID
  • CVE-2018-18386
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-10-17T20:29:00
  • Last Modified Date
  • 2019-04-23T17:29:05
Weakness Enumerations
CWE URL
CWE-704 http://cwe.mitre.org/data/definitions/704.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.14.11
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 3.3
  • Base Severity
  • LOW
  • Exploitability Score
  • 1.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-18386
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18386
History
Created Old Value New Value Data Type Notes
2022-05-10 17:42:54 Added to TrackCVE
2022-12-03 13:35:31 2018-10-17T20:29Z 2018-10-17T20:29:00 CVE Published Date updated
2022-12-03 13:35:31 2019-04-23T17:29:05 CVE Modified Date updated
2022-12-03 13:35:31 Modified Vulnerability Status updated