CVE-2014-0196

MEDIUM
5.5
CVSS Score
Published: May 7, 2014 at 10:00 AM UTC
Updated: June 17, 2026 at 12:02 AM UTC
30 products affected across 7 vendorsLinux KernelDebian LinuxUbuntu Linux

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Severity
MEDIUM5.5
Exploitation
CISA KEV
Exploit prediction
EPSS 20%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score20.3%

EPSS (Exploit Prediction Scoring System) estimates a 20.3% chance this CVE is exploited in the wild within the next 30 days — higher than 97% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action
The impacted product is end-of-life and should be disconnected if still in use.
Ransomware Use
Unknown
Added to KEV
May 12, 2023
Remediation Due
Jun 2, 2023
1242 days overdue

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

11.1.0 ≤ v ≤ 11.5.1
11.3.0 ≤ v ≤ 11.5.1
11.1.0 ≤ v ≤ 11.5.1
11.1.0 ≤ v ≤ 11.3.0
11.1.0 ≤ v ≤ 11.5.1
11.1.0 ≤ v ≤ 11.5.1

References (29)

x_refsource_CONFIRMIssue TrackingPermissions RequiredThird Party Advisory
http://bugzilla.novell.com/show_bug.cgi?id=875690
x_refsource_CONFIRMThird Party Advisory
http://linux.oracle.com/errata/ELSA-2014-0771.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html
x_refsource_MISCExploitMailing ListThird Party Advisory
http://pastebin.com/raw.php?i=yTSFUBgZ
Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0512.html
Third Party Advisoryx_refsource_SECUNIANot Applicable
http://secunia.com/advisories/59218

SSVC — Action Prioritization

SSVCActiveNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-362

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