Linux Kernel 2.4.0 Route Cache denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel 2.4.0. The affected element is an unknown function of the component Route Cache. The manipulation results in denial of service. This vulnerability is reported as CVE-2003-0244. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel 2.4.0 (Operating System). Affected is some unknown functionality of the component Route Cache. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

The route cache implementation in Linux 2.4, and the Netfilter IP conntrack module, allows remote attackers to cause a denial of service (CPU consumption) via packets with forged source addresses that cause a large number of hash table collisions.

The weakness was disclosed 05/14/2003 by Scott A. Crosby and Dan S. Wallach (Website). The advisory is shared for download at enyo.de. This vulnerability is traded as CVE-2003-0244 since 05/06/2003. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 12388 (RHSA-2003-145: kernel), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at enyo.de. The best possible mitigation is suggested to be upgrading to the latest version. Attack attempts may be identified with Snort ID 363.

The vulnerability is also documented in the databases at X-Force (15382), Tenable (12388), SecurityFocus (BID 7601†), OSVDB (4453†) and Secunia (SA8786†). The entry VDB-89 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 12388
Nessus Name: RHSA-2003-145: kernel
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53694
OpenVAS Name: Debian Security Advisory DSA 311-1 (kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: enyo.de

Snort ID: 363

Timelineinfo

04/05/2003 🔍
05/06/2003 +31 days 🔍
05/14/2003 +7 days 🔍
05/14/2003 +0 days 🔍
05/14/2003 +0 days 🔍
05/27/2003 +13 days 🔍
03/22/2004 +300 days 🔍
07/06/2004 +105 days 🔍
05/29/2007 +1057 days 🔍
03/08/2021 +5032 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: enyo.de
Researcher: Scott A. Crosby, Dan S. Wallach
Status: Confirmed

CVE: CVE-2003-0244 (🔍)
GCVE (CVE): GCVE-0-2003-0244
GCVE (VulDB): GCVE-100-72

OVAL: 🔍

X-Force: 15382 - Multiple applications data-driven algorithmic complexity denial of service, Medium Risk
SecurityFocus: 7601
Secunia: 8786 - Linux Kernel Route Cache Flooding Denial of Service, Moderately Critical
OSVDB: 4453
Vulnerability Center: 15244 - Linux 2.4 Kernel Route Cache Implementation Allows Remote Denial of Service, High

See also: 🔍

Entryinfo

Created: 05/14/2003 02:00
Updated: 03/08/2021 10:17
Changes: 05/14/2003 02:00 (87), 03/08/2021 10:14 (4), 03/08/2021 10:17 (1)
Complete: 🔍
Cache ID: 216:F72:103

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