What is CVE-2014-0203?

CVE-2014-0203 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2014-0203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2014-0203?

CVE-2014-0203 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2014-0203?

No patch is currently available for CVE-2014-0203. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2014-0203 actively exploited?

CVE-2014-0203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2014-0203

Medium

The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 does not properly handle the last pathname component during use of certain filesystems, which allows local users to cause a denial of service (incorrect free operations and system crash) via an open system call.

Package Linux Kernel

Published 2014-06-23

Last modified 2026-05-06

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-416

CVE-2014-0203 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2014-0203 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Linux
http://linux.oracle.com/errata/ELSA-2014-0771.html

Third Party Advisory
Linux
http://linux.oracle.com/errata/ELSA-2014-3043.html

Third Party Advisory
Mirror
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33

Broken Link
Secunia
http://secunia.com/advisories/59262

Broken Link
Secunia
http://secunia.com/advisories/59309

Broken Link
Secunia
http://secunia.com/advisories/59406

Broken Link
Secunia
http://secunia.com/advisories/59560

Broken Link
Securityfocus
http://www.securityfocus.com/bid/68125

Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=86acdca1b63e6890540fa19495cfc708beff3d8b
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=1094363
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/86acdca1b63e6890540fa19495cfc708beff3d8b
Patch

Details

CVE ID CVE-2014-0203

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2014-06-23

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2014-0203?

CVE-2014-0203 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2014-0203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2014-0203?

CVE-2014-0203 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2014-0203?

No patch is currently available for CVE-2014-0203. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2014-0203 actively exploited?

No — CVE-2014-0203 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →