Amazon Linux AMI : ruby21 (ALAS-2014-449)

Medium Nessus Plugin ID 79298

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The upstream patch for CVE-2014-8080 introduced checks against the REXML.entity_expansion_text_limit, but did not add restrictions to limit the number of expansions performed, i.e. checks against the REXML::Document.entity_expansion_limit. As a consequence, even with the patch applied, a small XML document could cause REXML to use an excessive amount of CPU time. High memory usage can be achieved using larger inputs.

Solution

Run 'yum update ruby21' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2014-449.html

Plugin Details

Severity: Medium

ID: 79298

File Name: ala_ALAS-2014-449.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2014/11/18

Updated: 2018/04/18

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ruby21, p-cpe:/a:amazon:linux:ruby21-debuginfo, p-cpe:/a:amazon:linux:ruby21-devel, p-cpe:/a:amazon:linux:ruby21-doc, p-cpe:/a:amazon:linux:ruby21-irb, p-cpe:/a:amazon:linux:ruby21-libs, p-cpe:/a:amazon:linux:rubygem21-bigdecimal, p-cpe:/a:amazon:linux:rubygem21-io-console, p-cpe:/a:amazon:linux:rubygem21-psych, p-cpe:/a:amazon:linux:rubygems21, p-cpe:/a:amazon:linux:rubygems21-devel, cpe:/o:amazon:linux

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

Patch Publication Date: 2014/11/13

Reference Information

CVE: CVE-2014-8090

ALAS: 2014-449