Detections
Analytics

CentOS 3 : ruby (CESA-2008:0896)

high Nessus Plugin ID 34462

Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated ruby packages that fix several security issues are now available for Red Hat Enterprise Linux 3.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Ruby is an interpreted scripting language for quick and easy object-oriented programming.

The Ruby DNS resolver library, resolv.rb, used predictable transaction IDs and a fixed source port when sending DNS requests. A remote attacker could use this flaw to spoof a malicious reply to a DNS query. (CVE-2008-3905)

A number of flaws were found in the safe-level restrictions in Ruby.
It was possible for an attacker to create a carefully crafted malicious script that can allow the bypass of certain safe-level restrictions. (CVE-2008-3655)

A denial of service flaw was found in Ruby's regular expression engine. If a Ruby script tried to process a large amount of data via a regular expression, it could cause Ruby to enter an infinite-loop and crash. (CVE-2008-3443)

Users of ruby should upgrade to these updated packages, which contain backported patches to resolve these issues.

Solution

Update the affected ruby packages.

See Also

http://www.nessus.org/u?b770fbcf

http://www.nessus.org/u?a367838f

http://www.nessus.org/u?9465e3d8

Plugin Details

Severity: High

ID: 34462

File Name: centos_RHSA-2008-0896.nasl

Version: 1.17

Type: local

Agent: unix

Published: 10/22/2008

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.6

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

Vulnerability Information

CPE: cpe:/o:centos:centos:3, p-cpe:/a:centos:centos:ruby-devel, p-cpe:/a:centos:centos:ruby-libs, p-cpe:/a:centos:centos:ruby, p-cpe:/a:centos:centos:ruby-docs, p-cpe:/a:centos:centos:ruby-tcltk, p-cpe:/a:centos:centos:irb, p-cpe:/a:centos:centos:ruby-mode

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/24/2008

Vulnerability Publication Date: 8/12/2008

Reference Information

CVE: CVE-2008-3443, CVE-2008-3655, CVE-2008-3905

BID: 30644, 30682, 31699

CWE: 264, 287, 399

RHSA: 2008:0896