RHSA-2017:0937 - Security Advisory
Moderate: python-defusedxml and python-pysaml2 security update
Security Advisory: Moderate
An update for python-defusedxml and python-pysaml2 is now available for Red Hat OpenStack Platform 9.0 (Mitaka).
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.
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.
- 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)
For details on how to apply this update, which includes the changes described in this advisory, refer to:
- Red Hat OpenStack 9 x86_64
- BZ - 1415710 - CVE-2016-10149 python-pysaml2: Entity expansion issue
Red Hat OpenStack 9