Linux Kernel 3.16.x TCP Fast Open initialization

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.
6.2$0-$5k0.00

A vulnerability, which was classified as critical, was found in Linux Kernel 3.16.x (Operating System). This affects some unknown functionality of the component TCP Fast Open Handler. The manipulation with an unknown input leads to a initialization vulnerability. CWE is classifying the issue as CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. This is going to have an impact on availability.

The weakness was disclosed 04/14/2015 by Ben Hutchings as Bug 1213951 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2015-3332 since 04/17/2015. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 83810 (Ubuntu 12.04 LTS : linux-lts-trusty vulnerability (USN-2619-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167909 (SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2015:1071-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (83810), SecurityFocus (BID 74232†), SecurityTracker (ID 1032406†) and Vulnerability Center (SBV-50408†). Further details are available at access.redhat.com. The entries VDB-75571, VDB-75570, VDB-75569 and VDB-75565 are pretty similar.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 83810
Nessus Name: Ubuntu 12.04 LTS : linux-lts-trusty vulnerability (USN-2619-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703237
OpenVAS Name: Debian Security Advisory DSA 3237-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/14/2015 🔍
04/14/2015 +0 days 🔍
04/14/2015 +0 days 🔍
04/17/2015 +3 days 🔍
05/26/2015 +39 days 🔍
05/27/2015 +1 days 🔍
05/27/2015 +0 days 🔍
05/27/2015 +0 days 🔍
06/08/2015 +12 days 🔍
05/19/2022 +2537 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 1213951
Researcher: Ben Hutchings
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3332 (🔍)
OVAL: 🔍

SecurityFocus: 74232 - Linux Kernel CVE-2015-3332 Local Denial of Service Vulnerability
SecurityTracker: 1032406 - Linux Kernel TCP Fast Open Logic Error Lets Local Users Deny Service
Vulnerability Center: 50408 - Linux Kernel before 3.1 Local DoS via the Fast Open Feature, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/27/2015 12:56 PM
Updated: 05/19/2022 12:46 PM
Changes: 05/27/2015 12:56 PM (76), 06/30/2017 05:43 AM (5), 05/19/2022 12:39 PM (3), 05/19/2022 12:46 PM (1)
Complete: 🔍
Cache ID: 18:910:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!