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Findings

CVE-2014-0196

Linux Kernel Race Condition Vulnerability

Published May 7, 2014 · updated Jun 16, 2026 · n/a n/a

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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 7, 2014 · Catalog

    Detected

    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.

  2. May 12, 2023 · CISA KEV

    Known exploited

    The impacted product is end-of-life and should be disconnected if still in use.

  3. Jun 2, 2023 · CISA KEV

    Remediation due

    The impacted product is end-of-life and should be disconnected if still in use.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

The impacted product is end-of-life and should be disconnected if still in use.

CISA due date Jun 2, 2023

Affected

  • cpe debian/debian linux6.0
  • cpe linux/linux kernelversion unspecified
  • cpe linux/linux kernel2.6.31
  • cpe oracle/linux6
  • cpe redhat/enterprise linux6.0
  • cpe suse/suse linux enterprise desktop11
  • vendor Linux Kernelversion unspecified
  • vendor n/a n/aversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2014-0196

    Linux Kernel contains a race condition vulnerability within the n_tty_write function that allows local users to cause a denial-of-service (DoS) or gain privileges via read and write operations with long strings.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2014-0196

    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

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2014-0196

    30-day exploitation probability 22.5%

    first.org
  • Exploit DatabasePublic exploit reference33516

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-2014-0196

    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

    nvd.nist.gov

References