[RHSA-2017:0936-01] Moderate: python-defusedxml and python-pysaml2 security update

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Red Hat Security Advisory

 

Synopsis: Moderate: python-defusedxml and python-pysaml2 security update

Advisory ID: RHSA-2017:0936-01

Product: Red Hat Enterprise Linux OpenStack Platform

Advisory URL: https://access.redhat.com/errata/RHSA-2017:0936

Issue date: 2017-04-12

CVE Names: CVE-2016-10149

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1. Summary:

 

An update for python-defusedxml and python-pysaml2 is now available for Red

Hat OpenStack Platform 8.0 (Liberty).

 

Red Hat Product Security has rated this update as having a security impact

of Moderate. 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:

 

Red Hat OpenStack Platform 8.0 (Liberty) - noarch

 

3. Description:

 

The defusedxml package contains several Python-only updates for security

vulnerabilities in Python's XML libraries. Defusedxml functions and classes

can be used instead of the originals to protect against entity-expansion

and DTD-retrieval issues.

 

PySAML2 is the python implementation of SAML Version 2, containing all the

functionality for building a SAML2 service provider or an identity

provider, to be used in a WSGI environment.

 

Security Fix(es):

 

* An XML entity expansion vulnerability was found in python-pysaml2. A

remote attacker could send a crafted request which would cause denial of

service through resource exhaustion. (CVE-2016-10149)

 

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/):

 

1415710 - CVE-2016-10149 python-pysaml2: Entity expansion issue

 

6. Package List:

 

Red Hat OpenStack Platform 8.0 (Liberty):

 

Source:

python-defusedxml-0.5.0-1.el7ost.src.rpm

python-pysaml2-3.0.2-3.el7ost.src.rpm

 

noarch:

python-defusedxml-0.5.0-1.el7ost.noarch.rpm

python-pysaml2-3.0.2-3.el7ost.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-2016-10149

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2017 Red Hat, Inc.

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