HackZoneLabs News
Newsletter

CVE-2014-0196

Linux Kernel Race Condition Vulnerability

  • Medium 5.5
  • Exploited: added to CISA KEV 12 May 2023
  • A public exploit reference is listed

Description

The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings.

Key facts

Published
7 May 2014
Last changed
22 Oct 2025
Assigned by
redhat
KEV added
12 May 2023
KEV fix due
2 Jun 2023
EPSS
20.329% likely to be exploited in the next 30 days, higher than 97.52% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 5.5CVSS 3.1, Mediumfrom CISA (ADP container)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What to do

  • The impacted product is end-of-life and should be disconnected if still in use.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
n/an/a
  • n/a (affected)

Timeline

  1. 7 May 2014 Published
  2. 12 May 2023 CVE-2014-0196 added to CISA KEV
  3. 12 May 2023 Added to the CISA KEV catalogue

Weakness

References