Linux Kernel 3.14.8/3.15.1 SCTP sctp_association_free COOKIE_ECHO Chunk input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in Linux Kernel 3.14.8/3.15.1 (Operating System) and classified as problematic. This issue affects the function sctp_association_free of the component SCTP Handler. The manipulation as part of a COOKIE_ECHO Chunk leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability.

The weakness was published 06/30/2014 by Petr Matousek as Bug 1113967 as confirmed bug report (Bugzilla). It is possible to read the advisory at The identification of this vulnerability is CVE-2014-4667 since 06/26/2014. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 77140 (Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2014-3069)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195600 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2334-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16636.

The vulnerability is also documented in the databases at X-Force (94106) and Tenable (77140). Similar entries are available at 67043, 67287, 34060 and 43527.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Input validation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 77140
Nessus Name: Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2014-3069)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 702992
OpenVAS Name: Debian Security Advisory DSA 2992-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: d3217b15a19a4779c39b212358a5c71d725822ee
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍


06/12/2014 🔍
06/26/2014 +14 days 🔍
06/27/2014 +1 days 🔍
06/29/2014 +2 days 🔍
06/30/2014 +1 days 🔍
07/03/2014 +3 days 🔍
08/12/2014 +40 days 🔍
09/04/2014 +23 days 🔍
03/24/2015 +201 days 🔍
01/18/2022 +2492 days 🔍



Advisory: Bug 1113967
Researcher: Petr Matousek
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4667 (🔍)

X-Force: 94106 - Linux Kernel sctp_association_free() denial of service, Medium Risk
Vulnerability Center: 45149 - Linux Kernel sctp sctp_association_free Remote DoS Vulnerability due to Wrap-Around Issue, Medium
SecurityFocus: 68224 - Linux Kernel 'sctp_association_free()' Function Denial of Service Vulnerability
Secunia: 59777 - Ubuntu update for kernel, Moderately Critical
OSVDB: 108473

See also: 🔍


Created: 03/24/2015 03:54 PM
Updated: 01/18/2022 04:20 PM
Changes: 03/24/2015 03:54 PM (86), 05/31/2017 09:14 AM (7), 01/18/2022 04:13 PM (3), 01/18/2022 04:20 PM (1)
Complete: 🔍


No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!