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RHEL 5 : ruby (RHSA-2013:0611)

medium Nessus Plugin ID 65084

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated ruby packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks.

It was discovered that Ruby's REXML library did not properly restrict XML entity expansion. An attacker could use this flaw to cause a denial of service by tricking a Ruby application using REXML to read text nodes from specially crafted XML content, which will result in REXML consuming large amounts of system memory. (CVE-2013-1821)

All users of Ruby are advised to upgrade to these updated packages, which contain backported patches to resolve this issue.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2013:0611

https://access.redhat.com/security/cve/cve-2013-1821

Plugin Details

Severity: Medium

ID: 65084

File Name: redhat-RHSA-2013-0611.nasl

Version: 1.17

Type: local

Agent: unix

Published: 3/8/2013

Updated: 1/14/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:ruby-irb, p-cpe:/a:redhat:enterprise_linux:ruby-libs, p-cpe:/a:redhat:enterprise_linux:ruby-mode, cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:ruby-tcltk, p-cpe:/a:redhat:enterprise_linux:ruby-docs, cpe:/o:redhat:enterprise_linux:5.9, p-cpe:/a:redhat:enterprise_linux:ruby-ri, p-cpe:/a:redhat:enterprise_linux:ruby, p-cpe:/a:redhat:enterprise_linux:ruby-debuginfo, p-cpe:/a:redhat:enterprise_linux:ruby-devel, p-cpe:/a:redhat:enterprise_linux:ruby-rdoc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/7/2013

Reference Information

CVE: CVE-2013-1821

BID: 58141

RHSA: 2013:0611