RHEL 7 : ruby (RHSA-2014:1912)

high Nessus Plugin ID 79596

Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:1912 advisory.

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

Multiple denial of service flaws were found in the way the Ruby REXML XML parser performed expansion of parameter entities. A specially crafted XML document could cause REXML to use an excessive amount of CPU and memory.
(CVE-2014-8080, CVE-2014-8090)

A stack-based buffer overflow was found in the implementation of the Ruby Array pack() method. When performing base64 encoding, a single byte could be written past the end of the buffer, possibly causing Ruby to crash.
(CVE-2014-4975)

The CVE-2014-8090 issue was discovered by Red Hat Product Security.

All ruby users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of Ruby need to be restarted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL ruby package based on the guidance in RHSA-2014:1912.

See Also

http://www.nessus.org/u?7b27c6d3

https://access.redhat.com/errata/RHSA-2014:1912

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=1118158

https://bugzilla.redhat.com/show_bug.cgi?id=1157709

https://bugzilla.redhat.com/show_bug.cgi?id=1159927

Plugin Details

Severity: High

ID: 79596

File Name: redhat-RHSA-2014-1912.nasl

Version: 1.20

Type: local

Agent: unix

Published: 11/27/2014

Updated: 11/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2014-4975

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2014-8080

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rubygem-json, p-cpe:/a:redhat:enterprise_linux:rubygem-rdoc, p-cpe:/a:redhat:enterprise_linux:ruby, p-cpe:/a:redhat:enterprise_linux:ruby-devel, p-cpe:/a:redhat:enterprise_linux:ruby-doc, p-cpe:/a:redhat:enterprise_linux:rubygems, p-cpe:/a:redhat:enterprise_linux:rubygem-io-console, p-cpe:/a:redhat:enterprise_linux:ruby-irb, p-cpe:/a:redhat:enterprise_linux:ruby-libs, p-cpe:/a:redhat:enterprise_linux:rubygem-psych, p-cpe:/a:redhat:enterprise_linux:ruby-tcltk, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rubygem-rake, p-cpe:/a:redhat:enterprise_linux:rubygem-bigdecimal, p-cpe:/a:redhat:enterprise_linux:rubygems-devel

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: 11/26/2014

Vulnerability Publication Date: 11/3/2014

Reference Information

CVE: CVE-2014-4975, CVE-2014-8080, CVE-2014-8090

BID: 68474, 70935, 71230

CWE: 121, 776

RHSA: 2014:1912