Linux Kernel up to 2.6.7 Netfilter tcp_find_option TCP Options denial of service

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.
7.1$0-$5k0.00

A vulnerability was found in Linux Kernel up to 2.6.7 (Operating System). It has been rated as critical. This issue affects the function tcp_find_option of the component Netfilter. The manipulation as part of a TCP Options leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The bug was discovered 06/30/2004. The weakness was disclosed 06/03/2004 by Adam Osuchowski as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2004-0626 since 06/30/2004. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1499 for this issue.

After 4 weeks, there has been an exploit disclosed. The exploit is available at securiteam.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 13733 (Fedora Core 2 : kernel-2.6.6-1.435.2.1 (2004-202)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (16554) and Tenable (13733). secunia.com is providing further details. The entry 730 is pretty similar.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.5
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 13733
Nessus Name: Fedora Core 2 : kernel-2.6.6-1.435.2.1 (2004-202)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 54619
OpenVAS Name: Gentoo Security Advisory GLSA 200407-12 (Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Disable
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: kernel.org

Timelineinfo

06/03/2004 🔍
06/30/2004 +27 days 🔍
06/30/2004 +0 days 🔍
06/30/2004 +0 days 🔍
06/30/2004 +0 days 🔍
06/30/2004 +0 days 🔍
06/30/2004 +0 days 🔍
07/01/2004 +1 days 🔍
07/05/2004 +3 days 🔍
07/23/2004 +18 days 🔍
07/26/2004 +3 days 🔍
12/06/2004 +133 days 🔍
03/09/2021 +5937 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: securityfocus.com
Researcher: Adam Osuchowski
Status: Not defined

CVE: CVE-2004-0626 (🔍)
X-Force: 16554 - Linux kernel tcp_find_option denial of service, Medium Risk
Vulnerability Center: 4852 - DoS on Linux kernel 2.6 via Large Option Length, Medium
SecuriTeam: securiteam.com
SecurityFocus: 10634 - Linux Kernel IPTables Sign Error Denial Of Service Vulnerability
Secunia: 11980 - Linux Kernel Netfilter TCP Option Matching Denial of Service Vulnerability, Moderately Critical
OSVDB: 7316 - Linux Kernel Netfilter TCP Option Matching DoS

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 07/05/2004 11:32
Updated: 03/09/2021 15:27
Changes: 07/05/2004 11:32 (102), 06/28/2019 20:13 (2), 03/09/2021 15:27 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!