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Red Hat Enterprise Linux 6: RHSA-2014:1911-01 Moderate: Ruby REXML DoS

red hat
Calendar Grey November 26, 2014
Dist Redhat Esm H88
Newly released ruby packages address two security vulnerabilities in Red Hat Enterprise Linux 6, classified as Moderate by the Product Security team.
Updated ruby packages that fix two security issues are now available for Red Hat Enterprise Linux 6

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/site/articles/11258

Summary

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.
Multiple denial of service flaws were found in the way the Ruby REXML XML parser performed expansion of parameter entities. A specially crafted XML document could cause REXML to use an excessive amount of CPU and memory. (CVE-2014-8080, CVE-2014-8090)
The CVE-2014-8090 issue was discovered by Red Hat Product Security.
All ruby users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of Ruby need to be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory moderate denial of service Red Hat ruby REXML

References

https://access.redhat.com/security/cve/CVE-2014-8080 https://access.redhat.com/security/cve/CVE-2014-8090 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: ruby-1.8.7.374-3.el6_6.src.rpm
i386: ruby-1.8.7.374-3.el6_6.i686.rpm ruby-debuginfo-1.8.7.374-3.el6_6.i686.rpm ruby-devel-1.8.7.374-3.el6_6.i686.rpm ruby-irb-1.8.7.374-3.el6_6.i686.rpm ruby-libs-1.8.7.374-3.el6_6.i686.rpm ruby-rdoc-1.8.7.374-3.el6_6.i686.rpm
x86_64: ruby-1.8.7.374-3.el6_6.x86_64.rpm ruby-debuginfo-1.8.7.374-3.el6_6.i686.rpm ruby-debuginfo-1.8.7.374-3.el6_6.x86_64.rpm ruby-devel-1.8.7.374-3.el6_6.i686.rpm ruby-devel-1.8.7.374-3.el6_6.x86_64.rpm ruby-irb-1.8.7.374-3.el6_6.x86_64.rpm ruby-libs-1.8.7.374-3.el6_6.i686.rpm ruby-libs-1.8.7.374-3.el6_6.x86_64.rpm ruby-rdoc-1.8.7.374-3.el6_6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: ruby-debuginfo-1.8.7.374-3.el6_6.i686.rpm ruby-docs-1.8.7.374-3.el6_6.i686.rpm ruby-ri-1.8.7.374-3.el6_6.i686.rpm ruby-static-1.8.7.374-3.el6_6.i686.rpm ruby-tcltk-1.8.7.374-3.el6_6.i686.rpm
x86_64: ruby-debuginfo-1.8.7.374-3.el6_6.x86_64.rpm ruby-docs-1.8.7.374-3.el6_6.x86_64.rpm ruby-ri-1.8.7.374-3.el6_6.x86_64.rpm ruby-static-1.8.7.374-3.el6_6.x86_64.rpm ruby-tcltk-1.8.7.374-3.el6_6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: ruby-1.8.7.374-3.el6_6.src.rpm
x86_64: ruby-1.8.7.374-3.el6_6.x86_64.rpm ruby-debuginfo-1.8.7.374-3.el6_6.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:1911-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1911.html
Issue date: 2014-11-26

Topic

Updated ruby packages that fix two security issues are now available forRed Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory moderate denial of service Red Hat ruby REXML

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1157709 - CVE-2014-8080 ruby: REXML billion laughs attack via parameter entity expansion

1159927 - CVE-2014-8090 ruby: REXML incomplete fix for CVE-2014-8080

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