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Scientific Linux Security Update : ruby on SL6.x i386/x86_64 (20130307)

medium Nessus Plugin ID 65094

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Synopsis

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

Description

It was discovered that Ruby's REXML library did not properly restrict XML entity expansion. An attacker could use this flaw to cause a denial of service by tricking a Ruby application using REXML to read text nodes from specially crafted XML content, which will result in REXML consuming large amounts of system memory. (CVE-2013-1821)

It was found that the SLSA-2011:0910 update did not correctly fix the CVE-2011-1005 issue, a flaw in the method for translating an exception message into a string in the Exception class. A remote attacker could use this flaw to bypass safe level 4 restrictions, allowing untrusted (tainted) code to modify arbitrary, trusted (untainted) strings, which safe level 4 restrictions would otherwise prevent. (CVE-2012-4481)

The CVE-2012-4481 issue was discovered by Vit Ondruch of Red Hat.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?620a24f5

Plugin Details

Severity: Medium

ID: 65094

File Name: sl_20130307_ruby_on_SL6_x.nasl

Version: 1.10

Type: local

Agent: unix

Published: 3/8/2013

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: 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, 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

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

Patch Publication Date: 3/7/2013

Vulnerability Publication Date: 3/2/2011

Reference Information

CVE: CVE-2011-1005, CVE-2012-4481, CVE-2013-1821