Ubuntu 4.10 / 5.04 : ruby1.8 vulnerability (USN-195-1)

high Nessus Plugin ID 20609

Synopsis

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

Description

The object oriented scripting language Ruby supports safely executing untrusted code with two mechanisms: safe level and taint flag on objects. Dr. Yutaka Oiwa discovered a vulnerability that allows Ruby methods to bypass these mechanisms. In systems which use this feature, this could be exploited to execute Ruby code beyond the restrictions specified in each safe level.

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: High

ID: 20609

File Name: ubuntu_USN-195-1.nasl

Version: 1.17

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 1/15/2006

Updated: 1/19/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libtcltk-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libiconv-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libxmlrpc-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libzlib-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libcurses-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.8, p-cpe:/a:canonical:ubuntu_linux:libreadline-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-elisp, p-cpe:/a:canonical:ubuntu_linux:libopenssl-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:librexml-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libsyslog-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libtest-unit-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-dev, p-cpe:/a:canonical:ubuntu_linux:libwebrick-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libbigdecimal-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-examples, p-cpe:/a:canonical:ubuntu_linux:libyaml-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libstrscan-ruby1.8, cpe:/o:canonical:ubuntu_linux:4.10, p-cpe:/a:canonical:ubuntu_linux:liberb-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:irb1.8, p-cpe:/a:canonical:ubuntu_linux:libsoap-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:rdoc1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.8-dbg, cpe:/o:canonical:ubuntu_linux:5.04, p-cpe:/a:canonical:ubuntu_linux:libdl-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libdrb-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ri1.8, p-cpe:/a:canonical:ubuntu_linux:libpty-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libgdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libtk-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libsdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libracc-runtime-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8

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

Patch Publication Date: 10/10/2005

Vulnerability Publication Date: 9/22/2005

Reference Information

CVE: CVE-2005-2337

USN: 195-1

Detections

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