# CVE-2014-0196

## Summary

- **CVE ID:** CVE-2014-0196
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** N/A
- **Published:** May 7, 2014
- **Last Modified:** Sep 16, 2026

## 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.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://www.ubuntu.com/usn/USN-2203-1)
- [CNA](http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html)
- [CNA](http://www.osvdb.org/106646)
- [CNA](http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html)
- [CNA](http://www.openwall.com/lists/oss-security/2014/05/05/6)
- [CNA](http://secunia.com/advisories/59262)
- [CNA](http://www.ubuntu.com/usn/USN-2204-1)
- [CNA](http://secunia.com/advisories/59218)
- [CNA](http://www.ubuntu.com/usn/USN-2202-1)
- [CNA](http://www.exploit-db.com/exploits/33516)
- [CNA](http://www.debian.org/security/2014/dsa-2928)
- [CNA](http://www.ubuntu.com/usn/USN-2199-1)
- [CNA](http://linux.oracle.com/errata/ELSA-2014-0771.html)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=1094232)
- [CNA](http://www.ubuntu.com/usn/USN-2197-1)
- [CNA](http://source.android.com/security/bulletin/2016-07-01.html)
- [CNA](http://rhn.redhat.com/errata/RHSA-2014-0512.html)
- [CNA](http://secunia.com/advisories/59599)
- [CNA](http://www.debian.org/security/2014/dsa-2926)
- [CNA](https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00)
- [CNA](http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html)
- [CNA](http://pastebin.com/raw.php?i=yTSFUBgZ)
- [CNA](http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00)
- [CNA](http://bugzilla.novell.com/show_bug.cgi?id=875690)
- [CNA](http://www.ubuntu.com/usn/USN-2198-1)
- [CNA](http://www.ubuntu.com/usn/USN-2200-1)
- [CNA](http://www.ubuntu.com/usn/USN-2201-1)
- [CNA](http://www.ubuntu.com/usn/USN-2196-1)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0196)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 61.76%
- **EPSS Percentile:** 98.3

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** May 12, 2023
- **Due Date:** Jun 2, 2023

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._