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Red Hat Software Collections: RHSA-2015:1657-01 Important: DNS Hijacking

red hat
Calendar Grey August 24, 2015
Dist Redhat Esm H88
Crucial notice regarding rh-ruby22-ruby software addressing DNS manipulation vulnerability. Update is advised for Red Hat clients.
Updated rh-ruby22-ruby packages that fix one security issue are now available for Red Hat Software Collections 2

Solution

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

For details on how to apply this update, refer to:

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 perform system management tasks.
A flaw was found in a way rubygems verified the API endpoint hostname retrieved through a DNS SRV record. A man-in-the-middle attacker could use this flaw to force a client to download content from an untrusted domain. (CVE-2015-3900)
All rh-ruby22-ruby users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running instances of Ruby need to be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory red hat security fix ruby important update dns hijacking

References

https://access.redhat.com/security/cve/CVE-2015-3900 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6):
Source: rh-ruby22-ruby-2.2.2-12.el6.src.rpm
noarch: rh-ruby22-ruby-doc-2.2.2-12.el6.noarch.rpm rh-ruby22-ruby-irb-2.2.2-12.el6.noarch.rpm rh-ruby22-rubygem-minitest-5.4.3-12.el6.noarch.rpm rh-ruby22-rubygem-power_assert-0.2.2-12.el6.noarch.rpm rh-ruby22-rubygem-rake-10.4.2-12.el6.noarch.rpm rh-ruby22-rubygem-rdoc-4.2.0-12.el6.noarch.rpm rh-ruby22-rubygem-test-unit-3.0.8-12.el6.noarch.rpm rh-ruby22-rubygems-devel-2.4.5-12.el6.noarch.rpm
x86_64: rh-ruby22-ruby-2.2.2-12.el6.x86_64.rpm rh-ruby22-ruby-debuginfo-2.2.2-12.el6.x86_64.rpm rh-ruby22-ruby-devel-2.2.2-12.el6.x86_64.rpm rh-ruby22-ruby-libs-2.2.2-12.el6.x86_64.rpm rh-ruby22-ruby-tcltk-2.2.2-12.el6.x86_64.rpm rh-ruby22-rubygem-bigdecimal-1.2.6-12.el6.x86_64.rpm rh-ruby22-rubygem-io-console-0.4.3-12.el6.x86_64.rpm rh-ruby22-rubygem-json-1.8.1-12.el6.x86_64.rpm rh-ruby22-rubygem-psych-2.0.8-12.el6.x86_64.rpm rh-ruby22-rubygems-2.4.5-12.el6.x86_64.rpm
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.5):
Source: rh-ruby22-ruby-2.2.2-12.el6.src.rpm
noarch: rh-ruby22-ruby-doc-2.2.2-12.el6.noarch.rpm rh-ruby22-ruby-irb-2.2.2-12.el6.noarch.rpm rh-ruby22-rubygem-minitest-5.4.3-12.el6.noarch.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2015:1657-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1657.html
Issue date: 2015-08-24

Topic

Updated rh-ruby22-ruby packages that fix one security issue are nowavailable for Red Hat Software Collections 2.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory red hat security fix ruby important update dns hijacking

Relevant Releases Architectures

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) - noarch, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - noarch, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.5) - noarch, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) - noarch, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) - noarch, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - noarch, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Bugs Fixed

1236116 - CVE-2015-3900 rubygems: DNS hijacking vulnerability in api_endpoint()

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