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Red Hat: RHSA-2015:1766-01 Moderate: python-django DoS Threat

red hat
Calendar Grey September 10, 2015
Dist Redhat Esm H88
Recent updates to python-django packages tackle notable security vulnerabilities in Red Hat Enterprise Linux. An upgrade is advised.
Updated python-django packages that fix two security issues are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 6

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

Summary

Django is a high-level Python Web framework that encourages rapid development and a clean, pragmatic design. It focuses on automating as much as possible and adhering to the DRY (Don't Repeat Yourself) principle.
It was found that Django incorrectly handled the session store. A session could be created by anonymously accessing the django.contrib.auth.views.logout view if it was not decorated correctly with django.contrib.auth.decorators.login_required. A remote attacker could use this flaw to fill up the session store or cause other users' session records to be evicted by requesting a large number of new sessions. (CVE-2015-5963)
It was found that certain Django functions would, in certain circumstances, create empty sessions. A remote attacker could use this flaw to fill up the session store or cause other users' session records to be evicted by requesting a large number of new sessions. (CVE-2015-5964)
Red Hat would like to thank the upstream Django project for reporting these issues. Upstream acknowledges Lin Hua Cheng as the original reporter of CVE-2015-5964.
All python-django users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Topics%20covered

Topics Covered

security advisory Red Hat DoS moderate impact python-django

References

https://access.redhat.com/security/cve/CVE-2015-5963 https://access.redhat.com/security/cve/CVE-2015-5964 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6:
Source: python-django-1.6.11-3.el6ost.src.rpm
noarch: python-django-1.6.11-3.el6ost.noarch.rpm python-django-bash-completion-1.6.11-3.el6ost.noarch.rpm python-django-doc-1.6.11-3.el6ost.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/


Advisory ID: RHSA-2015:1766-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1766.html
Issue date: 2015-09-10

Topic

Updated python-django packages that fix two security issues are nowavailable for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red HatEnterprise Linux 6.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat DoS moderate impact python-django

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6 - noarch

Bugs Fixed

1252890 - CVE-2015-5963 python-django: Denial-of-service possibility in logout() view by filling session store

1252891 - CVE-2015-5964 python-django: Denial-of-service possibility in logout() view by filling session store

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