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AUSCERT External Security Bulletin Redistribution
Critical: rubygem-activesupport security update
29 January 2013
AusCERT Security Bulletin Summary
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
CVE Names: CVE-2013-0333
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Red Hat Security Advisory
Synopsis: Critical: rubygem-activesupport security update
Advisory ID: RHSA-2013:0203-01
Product: Red Hat CloudForms
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0203.html
Issue date: 2013-01-29
CVE Names: CVE-2013-0333
An updated rubygem-activesupport package that fixes one security issue is
now available for Red Hat CloudForms.
The Red Hat Security Response Team has rated this update as having critical
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. Relevant releases/architectures:
CloudForms Cloud Engine for RHEL 6 Server - noarch
CloudForms System Engine for RHEL 6 Server - noarch
Ruby on Rails is a model-view-controller (MVC) framework for web
application development. Active Support provides support and utility
classes used by the Ruby on Rails framework.
A flaw was found in the way Active Support performed the parsing of JSON
requests by translating them to YAML. A remote attacker could use this flaw
to execute arbitrary code with the privileges of a Ruby on Rails
application, perform SQL injection attacks, or bypass the authentication
using a specially-created JSON request. (CVE-2013-0333)
Red Hat would like to thank Ruby on Rails upstream for reporting this
issue. Upstream acknowledges Lawrence Pit of Mirror42 as the original
Users of Red Hat CloudForms are advised to upgrade to this updated package,
which resolves this issue. Users of CloudForms Cloud Engine must run
"aeolus-services restart" and users of CloudForms System Engine must run
"katello-service restart" for this update to take effect.
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
5. Bugs fixed (http://bugzilla.redhat.com/):
903440 - CVE-2013-0333 rubygem-activesupport: json to yaml parsing
6. Package List:
CloudForms Cloud Engine for RHEL 6 Server:
CloudForms System Engine for RHEL 6 Server:
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
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