Oracle Linux 6 : ruby (ELSA-2012-0069)

High Nessus Plugin ID 68440

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

From Red Hat Security Advisory 2012:0069 :

Updated ruby packages that fix one security issue are now available for Red Hat Enterprise Linux 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 denial of service flaw was found in the implementation of associative arrays (hashes) in Ruby. An attacker able to supply a large number of inputs to a Ruby application (such as HTTP POST request parameters sent to a web application) that are used as keys when inserting data into an array could trigger multiple hash function collisions, making array operations take an excessive amount of CPU time. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2011-4815)

Red Hat would like to thank oCERT for reporting this issue. oCERT acknowledges Julian Walde and Alexander Klink as the original reporters.

All users of ruby are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.

Solution

Update the affected ruby packages.

See Also

https://oss.oracle.com/pipermail/el-errata/2012-January/002577.html

Plugin Details

Severity: High

ID: 68440

File Name: oraclelinux_ELSA-2012-0069.nasl

Version: 1.8

Type: local

Agent: unix

Published: 2013/07/12

Updated: 2020/09/24

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:ruby, p-cpe:/a:oracle:linux:ruby-devel, p-cpe:/a:oracle:linux:ruby-docs, p-cpe:/a:oracle:linux:ruby-irb, p-cpe:/a:oracle:linux:ruby-libs, p-cpe:/a:oracle:linux:ruby-rdoc, p-cpe:/a:oracle:linux:ruby-ri, p-cpe:/a:oracle:linux:ruby-static, p-cpe:/a:oracle:linux:ruby-tcltk, cpe:/o:oracle:linux:6

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2012/01/31

Vulnerability Publication Date: 2011/12/29

Reference Information

CVE: CVE-2011-4815

BID: 51198

RHSA: 2012:0069