Red Hat Security Advisory 2013-0670-01 - The Django web framework is used by Horizon, the OpenStack Dashboard, which is a web interface for managing OpenStack services. A denial of service flaw was found in the Extensible Markup Language parser used by Django. A remote attacker could use this flaw to send a specially-crafted request to an Horizon API, causing Horizon to consume an excessive amount of CPU and memory. A flaw was found in the XML parser used by Django. If a remote attacker sent a specially-crafted request to an Horizon API, it could cause Horizon to connect to external entities, causing a large amount of system load, or allow an attacker to read files on the Horizon server that are accessible to the user running Horizon.
f43133ae695ecbbd6f834f905823dd891d699fa224d25328a2c8c1c9c98db579Red Hat Security Advisory 2013-0658-01 - The openstack-cinder packages provide OpenStack Volume, which provides services to manage and access block storage volumes for use by virtual machine instances. A denial of service flaw was found in the Extensible Markup Language parser used by Cinder. A remote attacker could use this flaw to send a specially-crafted request to a Cinder API, causing Cinder to consume an excessive amount of CPU and memory. A flaw was found in the XML parser used by Cinder. If a remote attacker sent a specially-crafted request to a Cinder API, it could cause Cinder to connect to external entities, causing a large amount of system load, or allow an attacker to read files on the Cinder server that are accessible to the user running Cinder.
685dedeb4a1d9e24e68f572aa40addf6cf297350396926eb9e89d6cf3c150694Red Hat Security Advisory 2013-0657-01 - The openstack-nova packages provide OpenStack Compute, which provides services for provisioning, managing, and using virtual machine instances. A denial of service flaw was found in the Extensible Markup Language parser used by Nova. A remote attacker could use this flaw to send a specially-crafted request to a Nova API, causing Nova to consume an excessive amount of CPU and memory. A flaw was found in the XML parser used by Nova. If a remote attacker sent a specially-crafted request to a Nova API, it could cause Nova to connect to external entities, causing a large amount of system load, or allow an attacker to read files on the Nova server that are accessible to the user running Nova.
b588103f41924e1d9554e7745752d1e515b6a95f3de6329a3b36b9ae1c1af1ffUbuntu Security Notice 1757-1 - James Kettle discovered that Django did not properly filter the Host HTTP header when processing certain requests. An attacker could exploit this to generate and display arbitrary URLs to users. Although this issue had been previously addressed in USN-1632-1, this update adds additional hardening measures to host header validation. This update also adds a new ALLOWED_HOSTS setting that can be set to a list of acceptable values for headers. Orange Tsai discovered that Django incorrectly performed permission checks when displaying the history view in the admin interface. An administrator could use this flaw to view the history of any object, regardless of intended permissions. Various other issues were also addressed.
02719f42729583dd3407a3d30c2eedacc1f12b2e9836c0ea0740e3d9ef6cf3adRed Hat Security Advisory 2013-0596-01 - The openstack-keystone packages provide Keystone, a Python implementation of the OpenStack identity service API, which provides Identity, Token, Catalog, and Policy services. The openstack-keystone packages have been upgraded to upstream version 2012.2.3, which provides a number of bug fixes and enhancements over the previous version. This update also fixes the following security issues: It was found that Keystone failed to properly validate disabled user accounts, or user accounts associated with disabled tenants or domains, when Amazon Elastic Compute Cloud style credentials were in use. Such users could use this flaw to access resources they should no longer have access to.
a0eee1f003b97292b07495385b14bac708bd9b7275241a5fd85c12efc5671706Debian Linux Security Advisory 2634-1 - Several vulnerabilities have been discovered in python-django, a high-level python web development framework.
8377d247b2330890d79f474d182321f1f3ac22f1b48dd7ed09f05e3891683554Ubuntu Security Notice 1730-1 - Nathanael Burton discovered that Keystone did not properly verify disabled users. An authenticated but disabled user would continue to have access rights that were removed. Jonathan Murray discovered that Keystone would allow XML entity processing. A remote unauthenticated attacker could exploit this to cause a denial of service via resource exhaustion. Authenticated users could also use this to view arbitrary files on the Keystone server. Various other issues were also addressed.
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