Scientific Linux Security Update : ruby on SL6.x i386/x86_64 (20120130)

High Nessus Plugin ID 61229

Synopsis

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

Description

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)

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 packages.

See Also

http://www.nessus.org/u?a1450742

Plugin Details

Severity: High

ID: 61229

File Name: sl_20120130_ruby_on_SL6_x.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2012/08/01

Updated: 2020/02/27

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:ruby, p-cpe:/a:fermilab:scientific_linux:ruby-debuginfo, p-cpe:/a:fermilab:scientific_linux:ruby-devel, p-cpe:/a:fermilab:scientific_linux:ruby-docs, p-cpe:/a:fermilab:scientific_linux:ruby-irb, p-cpe:/a:fermilab:scientific_linux:ruby-libs, p-cpe:/a:fermilab:scientific_linux:ruby-rdoc, p-cpe:/a:fermilab:scientific_linux:ruby-ri, p-cpe:/a:fermilab:scientific_linux:ruby-static, p-cpe:/a:fermilab:scientific_linux:ruby-tcltk, x-cpe:/o:fermilab:scientific_linux

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

Patch Publication Date: 2012/01/30

Vulnerability Publication Date: 2011/12/30

Reference Information

CVE: CVE-2011-4815