Executive Summary

Summary
Title Ruby CGI module vulnerability
Informations
Name USN-20-1 First vendor Publication 2004-11-08
Vendor Ubuntu Last vendor Modification 2004-11-08
Severity (Vendor) N/A Revision N/A

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
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)

The following packages are affected:

libruby1.8

The problem can be corrected by upgrading the affected package to version 1.8.1+1.8.2pre2-3ubuntu0.1. In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

The Ruby developers discovered a potential Denial of Service vulnerability in the CGI module (cgi.rb). Specially crafted CGI requests could cause an infinite loop in the server process. Repetitive attacks could use most of the available processor resources, exhaust the number of allowed parallel connections in web servers, or cause similar effects which render the service unavailable.

There is no possibility of privilege escalation or data loss.

Original Source

Url : http://www.ubuntu.com/usn/USN-20-1

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10268
 
Oval ID: oval:org.mitre.oval:def:10268
Title: The CGI module in Ruby 1.6 before 1.6.8, and 1.8 before 1.8.2, allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certain HTTP request.
Description: The CGI module in Ruby 1.6 before 1.6.8, and 1.8 before 1.8.2, allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certain HTTP request.
Family: unix Class: vulnerability
Reference(s): CVE-2004-0983
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 6
Os 1
Os 6
Os 2
Os 2

OpenVAS Exploits

Date Description
2009-10-10 Name : SLES9: Security update for ruby
File : nvt/sles9p5013198.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200411-23 (Ruby)
File : nvt/glsa_200411_23.nasl
2008-09-04 Name : FreeBSD Ports: ruby, ruby_r
File : nvt/freebsd_ruby.nasl
2008-01-17 Name : Debian Security Advisory DSA 586-1 (ruby)
File : nvt/deb_586_1.nasl
2005-11-03 Name : cgi.rb
File : nvt/cgi_rb.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
11534 Ruby cgi.rb Malformed HTTP Request CPU Utilization DoS

Nessus® Vulnerability Scanner

Date Description
2009-04-23 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_d656296b33ff11d9a9e70001020eed82.nasl - Type : ACT_GATHER_INFO
2007-11-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-371-1.nasl - Type : ACT_GATHER_INFO
2007-11-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-394-1.nasl - Type : ACT_GATHER_INFO
2007-02-18 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2006-192.nasl - Type : ACT_GATHER_INFO
2007-02-18 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2006-225.nasl - Type : ACT_GATHER_INFO
2006-12-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1234.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-20-1.nasl - Type : ACT_GATHER_INFO
2004-12-13 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2004-635.nasl - Type : ACT_GATHER_INFO
2004-11-17 Name : The remote Fedora Core host is missing a security update.
File : fedora_2004-402.nasl - Type : ACT_GATHER_INFO
2004-11-17 Name : The remote Fedora Core host is missing a security update.
File : fedora_2004-403.nasl - Type : ACT_GATHER_INFO
2004-11-16 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200411-23.nasl - Type : ACT_GATHER_INFO
2004-11-13 Name : The remote web server is hosting a CGI application that is affected by a deni...
File : cgi_rb.nasl - Type : ACT_GATHER_INFO
2004-11-10 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-586.nasl - Type : ACT_GATHER_INFO
2004-11-09 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2004-128.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:02:39
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