# CVE-2014-0196: Linux Kernel Race Condition Vulnerability

> CVE-2014-0196: Linux Kernel Race Condition Vulnerability. CVSS 5.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2014-0196
Last updated: 2025-10-22T00:05:37Z

- Published: 2014-05-07 10:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: redhat
- CVSS: 5.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS: 20.3%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-05-12, federal due date 2023-06-02, ransomware use: Unknown

## 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.

## CISA required action

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

## Affected vendors and products

- Linux: Kernel

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2014-0196)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2014-0196)
- [http://bugzilla.novell.com/show\_bug.cgi?id=875690](http://bugzilla.novell.com/show_bug.cgi?id=875690)
- [http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00](http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%253Ba=commit%253Bh=4291086b1f081b869c6d79e5b7441633dc3ace00)
- [http://linux.oracle.com/errata/ELSA-2014-0771.html](http://linux.oracle.com/errata/ELSA-2014-0771.html)
- [http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html](http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html)
- [http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html](http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html)
- [http://pastebin.com/raw.php?i=yTSFUBgZ](http://pastebin.com/raw.php?i=yTSFUBgZ)
- [http://rhn.redhat.com/errata/RHSA-2014-0512.html](http://rhn.redhat.com/errata/RHSA-2014-0512.html)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=1094232](https://bugzilla.redhat.com/show_bug.cgi?id=1094232)
- [http://secunia.com/advisories/59218](http://secunia.com/advisories/59218)
- [http://secunia.com/advisories/59262](http://secunia.com/advisories/59262)
- [http://secunia.com/advisories/59599](http://secunia.com/advisories/59599)
- [https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00](https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00)
- [http://source.android.com/security/bulletin/2016-07-01.html](http://source.android.com/security/bulletin/2016-07-01.html)
- [http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html](http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html)
- [http://www.debian.org/security/2014/dsa-2926](http://www.debian.org/security/2014/dsa-2926)
- [http://www.debian.org/security/2014/dsa-2928](http://www.debian.org/security/2014/dsa-2928)
- [http://www.exploit-db.com/exploits/33516](http://www.exploit-db.com/exploits/33516)
- [http://www.openwall.com/lists/oss-security/2014/05/05/6](http://www.openwall.com/lists/oss-security/2014/05/05/6)
- [http://www.osvdb.org/106646](http://www.osvdb.org/106646)
- [http://www.ubuntu.com/usn/USN-2196-1](http://www.ubuntu.com/usn/USN-2196-1)
- [http://www.ubuntu.com/usn/USN-2197-1](http://www.ubuntu.com/usn/USN-2197-1)
- [http://www.ubuntu.com/usn/USN-2198-1](http://www.ubuntu.com/usn/USN-2198-1)
- [http://www.ubuntu.com/usn/USN-2199-1](http://www.ubuntu.com/usn/USN-2199-1)
- [http://www.ubuntu.com/usn/USN-2200-1](http://www.ubuntu.com/usn/USN-2200-1)
- [http://www.ubuntu.com/usn/USN-2201-1](http://www.ubuntu.com/usn/USN-2201-1)
- [http://www.ubuntu.com/usn/USN-2202-1](http://www.ubuntu.com/usn/USN-2202-1)
- [http://www.ubuntu.com/usn/USN-2203-1](http://www.ubuntu.com/usn/USN-2203-1)
- [http://www.ubuntu.com/usn/USN-2204-1](http://www.ubuntu.com/usn/USN-2204-1)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2014-0196 · Markdown: https://rewindex.com/cve/CVE-2014-0196.md · JSON: https://rewindex.com/api/v1/cves/CVE-2014-0196 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:58:50.932Z