Ubuntu 4.10 : ruby1.8 vulnerability (USN-20-1)

medium Nessus Plugin ID 20615
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Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

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.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 20615

File Name: ubuntu_USN-20-1.nasl

Version: 1.15

Type: local

Agent: unix

Published: 1/15/2006

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:irb1.8, p-cpe:/a:canonical:ubuntu_linux:libbigdecimal-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libcurses-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libdl-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libdrb-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:liberb-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libgdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libiconv-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libopenssl-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libpty-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libracc-runtime-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libreadline-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:librexml-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.8-dbg, p-cpe:/a:canonical:ubuntu_linux:libsdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libsoap-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libstrscan-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libsyslog-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libtcltk-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libtest-unit-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libtk-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libwebrick-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libxmlrpc-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libyaml-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libzlib-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:rdoc1.8, p-cpe:/a:canonical:ubuntu_linux:ri1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-dev, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-elisp, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-examples, cpe:/o:canonical:ubuntu_linux:4.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Patch Publication Date: 11/9/2004

Reference Information

CVE: CVE-2004-0983

USN: 20-1