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Red Hat Security Advisory 2017-2524-01

Red Hat Security Advisory 2017-2524-01
Posted Aug 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2524-01 - Ansible is a simple model-driven configuration management, multi-node deployment, and remote-task execution system. Ansible works over SSH and does not require any software or daemons to be installed on remote nodes. Extension modules can be written in any language and are transferred to managed machines automatically. The following packages have been upgraded to a later upstream version: ansible. Multiple security issues have been addressed.

tags | advisory, remote
systems | linux, redhat
advisories | CVE-2017-7481
MD5 | eeb0e43eadcef23b93b4abe97297f528

Red Hat Security Advisory 2017-2524-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: ansible security, bug fix, and enhancement update
Advisory ID: RHSA-2017:2524-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2524
Issue date: 2017-08-22
CVE Names: CVE-2017-7481
=====================================================================

1. Summary:

An update for ansible is now available for RHEV Engine version 4.1.

Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

RHV-M 4.1 - noarch

3. Description:

Ansible is a simple model-driven configuration management, multi-node
deployment, and remote-task execution system. Ansible works over SSH and
does not require any software or daemons to be installed on remote nodes.
Extension modules can be written in any language and are transferred to
managed machines automatically.

The following packages have been upgraded to a later upstream version:
ansible (2.3.1.0). (BZ#1477925)

Security Fix(es):

* An input validation flaw was found in Ansible, where it fails to properly
mark lookup-plugin results as unsafe. If an attacker could control the
results of lookup() calls, they could inject Unicode strings to be parsed
by the jinja2 templating system, resulting in code execution. By default,
the jinja2 templating language is now marked as 'unsafe' and is not
evaluated. (CVE-2017-7481)

This issue was discovered by Evgeni Golov (Red Hat).

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

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

1450018 - CVE-2017-7481 ansible: Security issue with lookup return not tainting the jinja2 environment
1477925 - Upgrade ansible to version 2.3.1.0

6. Package List:

RHV-M 4.1:

Source:
ansible-2.3.1.0-3.el7.src.rpm

noarch:
ansible-2.3.1.0-3.el7.noarch.rpm
ansible-doc-2.3.1.0-3.el7.noarch.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-7481
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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