CentOS 5 / 6 : ruby (CESA-2013:1090)

medium Nessus Plugin ID 68941
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 5.9

Synopsis

The remote CentOS 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 and 6.

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.

A flaw was found in Ruby's SSL client's hostname identity check when handling certificates that contain hostnames with NULL bytes. An attacker could potentially exploit this flaw to conduct man-in-the-middle attacks to spoof SSL servers. Note that to exploit this issue, an attacker would need to obtain a carefully-crafted certificate signed by an authority that the client trusts.
(CVE-2013-4073)

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

Solution

Update the affected ruby packages.

See Also

http://www.nessus.org/u?406092e7

http://www.nessus.org/u?e90fc49e

Plugin Details

Severity: Medium

ID: 68941

File Name: centos_RHSA-2013-1090.nasl

Version: 1.14

Type: local

Agent: unix

Published: 7/18/2013

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS Score Source: CVE-2013-4073

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:ruby, p-cpe:/a:centos:centos:ruby-devel, p-cpe:/a:centos:centos:ruby-docs, p-cpe:/a:centos:centos:ruby-irb, p-cpe:/a:centos:centos:ruby-libs, p-cpe:/a:centos:centos:ruby-mode, p-cpe:/a:centos:centos:ruby-rdoc, p-cpe:/a:centos:centos:ruby-ri, p-cpe:/a:centos:centos:ruby-static, p-cpe:/a:centos:centos:ruby-tcltk, cpe:/o:centos:centos:5, cpe:/o:centos:centos:6

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2013

Vulnerability Publication Date: 8/18/2013

Reference Information

CVE: CVE-2013-4073

BID: 60843

RHSA: 2013:1090