Executive Summary

Informations
Name CVE-2003-0187 First vendor Publication 2003-08-27
Vendor Cve Last vendor Modification 2017-10-11

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
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Detail

The connection tracking core of Netfilter for Linux 2.4.20, with CONFIG_IP_NF_CONNTRACK enabled or the ip_conntrack module loaded, allows remote attackers to cause a denial of service (resource consumption) due to an inconsistency with Linux 2.4.20's support of linked lists, which causes Netfilter to fail to identify connections with an UNCONFIRMED status and use large timeouts.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0187

CWE : Common Weakness Enumeration

% Id Name

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:260
 
Oval ID: oval:org.mitre.oval:def:260
Title: Netfilter Denial of Service
Description: The connection tracking core of Netfilter for Linux 2.4.20, with CONFIG_IP_NF_CONNTRACK enabled or the ip_conntrack module loaded, allows remote attackers to cause a denial of service (resource consumption) due to an inconsistency with Linux 2.4.20's support of linked lists, which causes Netfilter to fail to identify connections with an UNCONFIRMED status and use large timeouts.
Family: unix Class: vulnerability
Reference(s): CVE-2003-0187
Version: 2
Platform(s): Red Hat Linux 9
Product(s): Netfilter
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1

Open Source Vulnerability Database (OSVDB)

Id Description
6061 Linux IPTables / Netfilter Connection Tracking Linked List DoS

The netfilter (iptables) module of the Linux kernel contains a flaw that may allow a remote denial of service. The issue is triggered only when the connection tracking module ip_conntrack is loaded. When a large number of packets are sent to a machine so configured, one-way traffic packets are marked incorrectly as UNCONFIRMED statein the linked list, and assigned a very high timeout. This eventually consumes large amounts of system memory, and will result in loss of availability for the platform.

Sources (Detail)

Source Url
BUGTRAQ http://marc.info/?l=bugtraq&m=105986028426824&w=2
OVAL https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.ova...

Alert History

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Date Informations
2020-05-23 00:15:22
  • Multiple Updates
2017-10-11 09:23:16
  • Multiple Updates
2016-10-18 12:01:09
  • Multiple Updates
2016-04-26 12:31:02
  • Multiple Updates
2013-05-11 11:50:49
  • Multiple Updates