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RHEL 5: RHSA-2013:0611-01 Moderate: Ruby DoS Resolution

red hat
Calendar Grey March 7, 2013
Dist Redhat Esm H88
New python libraries address a vulnerability in CentOS 6; intermediate security notification for CVE-2014-1234.
Updated ruby packages that fix one security issue are now available for Red Hat Enterprise Linux 5

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258

Summary

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks.
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)
All users of Ruby are advised to upgrade to these updated packages, which contain backported patches to resolve this issue.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux ruby update REXML DoS

References

https://access.redhat.com/security/cve/CVE-2013-1821 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: ruby-1.8.5-29.el5_9.i386.rpm ruby-debuginfo-1.8.5-29.el5_9.i386.rpm ruby-docs-1.8.5-29.el5_9.i386.rpm ruby-irb-1.8.5-29.el5_9.i386.rpm ruby-libs-1.8.5-29.el5_9.i386.rpm ruby-rdoc-1.8.5-29.el5_9.i386.rpm ruby-ri-1.8.5-29.el5_9.i386.rpm ruby-tcltk-1.8.5-29.el5_9.i386.rpm
x86_64: ruby-1.8.5-29.el5_9.x86_64.rpm ruby-debuginfo-1.8.5-29.el5_9.i386.rpm ruby-debuginfo-1.8.5-29.el5_9.x86_64.rpm ruby-docs-1.8.5-29.el5_9.x86_64.rpm ruby-irb-1.8.5-29.el5_9.x86_64.rpm ruby-libs-1.8.5-29.el5_9.i386.rpm ruby-libs-1.8.5-29.el5_9.x86_64.rpm ruby-rdoc-1.8.5-29.el5_9.x86_64.rpm ruby-ri-1.8.5-29.el5_9.x86_64.rpm ruby-tcltk-1.8.5-29.el5_9.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: ruby-debuginfo-1.8.5-29.el5_9.i386.rpm ruby-devel-1.8.5-29.el5_9.i386.rpm ruby-mode-1.8.5-29.el5_9.i386.rpm
x86_64: ruby-debuginfo-1.8.5-29.el5_9.i386.rpm ruby-debuginfo-1.8.5-29.el5_9.x86_64.rpm ruby-devel-1.8.5-29.el5_9.i386.rpm ruby-devel-1.8.5-29.el5_9.x86_64.rpm ruby-mode-1.8.5-29.el5_9.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: ruby-1.8.5-29.el5_9.i386.rpm ruby-debuginfo-1.8.5-29.el5_9.i386.rpm ruby-devel-1.8.5-29.el5_9.i386.rpm ruby-docs-1.8.5-29.el5_9.i386.rpm ruby-irb-1.8.5-29.el5_9.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2013:0611-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0611.html
Issue date: 2013-03-07

Topic

Updated ruby packages that fix one security issue are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux ruby update REXML DoS

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

914716 - CVE-2013-1821 ruby: entity expansion DoS vulnerability in REXML

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