5 - RHSA-2016:0296

Problem Description:

Updated rh-ror41-rubygem-actionpack, rh-ror41-rubygem-actionview, rh-ror41-rubygem-activemodel, and rh-ror41-rubygem-activerecord packages that fix multiple security issues are now available for Red Hat Software Collections.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - noarch Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - noarch

3. Description:

The rh-ror41 collection provides Ruby on Rails version 4.1. Ruby on Rails is a model-view-controller (MVC) framework for web application development.

The following issue was corrected in rubygem-actionpack and rubygem-actionview:

A directory traversal flaw was found in the way the Action View component searched for templates for rendering. If an application passed untrusted input to the 'render' method, a remote, unauthenticated attacker could use this to render unexpected files and, possibly, execute arbitrary code. (CVE-2016-0752)

The following issues were corrected in rubygem-actionpack:

A flaw was found in the way the Action Pack component performed MIME type lookups. Since queries were cached in a global cache of MIME types, an attacker could use this flaw to grow the cache indefinitely, potentially resulting in a denial of service. (CVE-2016-0751)

A flaw was found in the Action Pack component's caching of controller references. An attacker could use this flaw to cause unbounded memory growth, potentially resulting in a denial of service. (CVE-2015-7581)

A flaw was found in the way the Action Controller component compared user names and passwords when performing HTTP basic authentication. Time taken to compare strings could differ depending on input, possibly allowing a remote attacker to determine valid user names and passwords using a timing attack. (CVE-2015-7576)

The following issue was corrected in rubygem-activerecord:

A flaw was found in the Active Record component's handling of nested attributes in combination with the destroy flag. An attacker could possibly use this flaw to set attributes to invalid values or clear all attributes. (CVE-2015-7577)

The following issue was corrected in rubygem-activemodel and rubygem-activerecord:

A flaw was found in the way the Active Model based models processed attributes. An attacker with the ability to pass arbitrary attributes to models could possibly use this flaw to bypass input validation. (CVE-2016-0753)

Red Hat would like to thank the Ruby on Rails project for reporting these issues. Upstream acknowledges John Poulin as the original reporter of CVE-2016-0752, Aaron Patterson of Red Hat as the original reporter of CVE-2016-0751, Daniel Waterworth as the original reporter of CVE-2015-7576, Justin Coyne as the original reporter of CVE-2015-7577, and John Backus from BlockScore as the original reporter of CVE-2016-0753.

All rh-ror41 collection rubygem-actionpack, rubygem-actionview, rubygem-activemodel, and rubygem-activerecord packages users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running applications using the rh-ror41 collection must be restarted for this update to take effect.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1301933 - CVE-2015-7576 rubygem-actionpack: Timing attack vulnerability in basic authentication in Action Controller 1301946 - CVE-2016-0751 rubygem-actionpack: possible object leak and denial of service attack in Action Pack 1301957 - CVE-2015-7577 rubygem-activerecord: Nested attributes rejection proc bypass in Active Record 1301963 - CVE-2016-0752 rubygem-actionview, rubygem-actionpack: directory traversal flaw in Action View 1301973 - CVE-2016-0753 rubygem-activemodel, rubygem-activerecord: possible input validation circumvention in Active Model 1301981 - CVE-2015-7581 rubygem-actionpack: Object leak vulnerability for wildcard controller routes in Action Pack