The XML libraries for Python 3.4, 3.3, 3.2, 3.1, 2.7, and 2.6, as used in OpenStack Keystone Essex, Folsom, and Grizzly; Compute (Nova) Essex and Folsom; Cinder Folsom; Django; and possibly other products allow remote attackers to cause a denial of service (resource consumption and crash) via an XML Entity Expansion (XEE) attack.

The remote host is affected by the vulnerability described in GLSA-201412-11 (AMD64 x86 emulation base libraries: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in AMD64 x86 emulation       base libraries. Please review the CVE identifiers referenced below for       details.
  Impact :

    A context-dependent attacker may be able to execute arbitrary code,       cause a Denial of Service condition, or obtain sensitive information.
  Workaround :

    There is no known workaround at this time.

The Openstack Stack components were updated to Folsom level as of March 5th.

Changes in openstack-cinder :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with security fixes and bug fixes that we need to     have OpenStack work nicely. Fix bnc#802278.

  - Update cinder-config-update.diff: update     etc/cinder/api-paste.ini to have a signing_dir key under     [filter:authtoken]. Otherwise, cinder-api won't start.
    This was done with commit de289a6 in Grizzly.

  - Update to version 2012.2.4+git.1362502414.95a620b :

  + Check for non-default volume name template.

  + Fix error for extra specs update with empty body.

  - Update to version 2012.2.4+git.1361527687.68de70d :

  + Add a safe_minidom_parse_string function.
    (CVE-2013-1664)

  - Set auth_strategy to keystone for a good out-of-the-box     experience

  - Add cinder-config-update.diff: move configuration     changes to a patch, instead of using sed.

  - Update to version 2012.2.4+git.1360133755.a8caa79 :

  + Final versioning for 2012.2.3

  + Bump version to 2012.2.4

  + Fix typo in cinder/db/api.py

  - Update to version 2012.2.3+git.1358429029.cdf6c13 :

  + Add commands used by NFS volume driver to rootwrap

Changes in openstack-dashboard :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with security fixes and bug fixes that we need to     have OpenStack work nicely. Fix bnc#802278.

  - Backport packaging changes we did for Grizzly to fix     theming :

  + define a production %bcond_with that will determine     whether offline compression is used or not.

  + if not using the production feature, have a nodejs     Requires.

  + move compression steps to %prep.

  + by default, use the non-production mode for greater     flexibility.

  - Do not use 'SUSE Cloud' as site branding: this is not     SUSE Cloud.

  - Update to version 2012.2.4+git.1362503968.8ece3c7 :

  + pin django to 1.4.x stream

  - Update to version 2012.2.4+git.1361527741.0a42fa0 :

  + Prevent the user from creating a single IP address sized     network

  + Add UTC offset information to the timezone

  - Update to version 2012.2.4+git.1360133827.f421145 :

  + Final versioning for 2012.2.3

  + Bump version to 2012.2.4

  - Update to version 2012.2.2+git.1359111868.20fa0fc :

  + Pin docutils to 0.9.1, fix pep8 errors

  + Fix bug 1055929 - Can not display usage data for Quota     Summary.

  + Revert 'Temp fix for api/keystone.py'

  + Specify floating ips table action column's width

  + Allow setting nova quotas to unlimited

  + Add a check for unlimited quotas

  + Avoid cinder calls, when cinder is unavailable

  + Don't inherit from base.html in 500 error page

  + Don't show the EC2 Credentials panel if there is no EC2     service

  - Drop horizon-ssl.patch: merged upstream.

Changes in openstack-glance :

  - Do not return location in headers (CVE-2013-1840)

  - This fixes bnc#808626.

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Update to version 2012.2.4+git.1362583521.1fb759d :

  + Swallow UserWarning from glance-cache-manage

  + Avoid dangling partial image on size/checksum mismatch

  - Update to version 2012.2.4+git.1362503824.afe6166 :

  + Fix broken JSON schemas in v2 tests

  + Prints list-cached dates in isoformat

  - Update to version 2012.2.4+git.1360133885.98d9928 :

  + Bump version to 2012.2.4

  - Update to version 2012.2.3+git.1359529730.a5b0f4e :

  + Change useexisting to extend_existing to fix deprecation     warnings.

  + Remove Swift location/password from messages.
    (CVE-2013-0212)

Changes in openstack-keystone :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - fix logging.conf to be about keystone and have absolute     path

  - Update to version 2012.2.4+git.1362502288.8690166 :

  + Sync timeutils to pick up normalize fix.

  + Backport of fix for 24-hour failure of pki.

  - Update to version 2012.2.4+git.1361527873.37b3532 :

  + Disable XML entity parsing (CVE-2013-1664,     CVE-2013-1665)

  + Ensure user and tenant enabled in EC2 (CVE-2013-0282)

  - Update to version 2012.2.4+git.1360133921.82c87e5 :

  + Bump version to 2012.2.4

  + Add size validations for /tokens. (CVE-2013-0247)

  - Update to version 2012.2.3+git.1359550485.ec7b94d :

  + Test 0.2.0 keystoneclient to avoid new deps

  + Unparseable endpoint URL's should raise friendly error

  + Fix catalog when services have no URL

  + Render content-type appropriate 404 (bug 1089987)

  - fix last commit's hash tag in Version

Changes in openstack-nova :

  - Add quotas for fixed ips. (CVE-2013-1838)

  - Update to version 2012.2.3+git.1358515929.3545a7d :

  + Add NFS to the libvirt volume driver list

  + Call plug_vifs() for all instances in init_host

  + Fix addition of CPU features when running against legacy     libvirt

  + Fix typo in resource tracker audit message

  - Move back to 'git_tarballs' source service.

  - Start using obs-service-github_tarballs

  - Update to version 2012.2.3+git.1358434328.a41b913 :

  + Provide better error message for aggregate-create

  + Fix errors in used_limits extension

  + Add an iptables mangle rule per-bridge for DHCP.

  + Limit formatting routes when adding resources

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Install polkit rules file in     /usr/share/polkit-1/rules.d/ since it's not a     configuration file, and use 10 instead of 50 as priority     to make sure it is taken into account.

  - Update to version 2012.2.4+git.1362583574.da38af5 :

  + VNC Token Validation (CVE-2013-0335)

  - Update to version 2012.2.4+git.1362502642.8c4df00 :

  + Ensure we add a new line when appending to rc.local

  + Handle compute node not available for live migration

  + remove intermediate libvirt downloaded images

  - Add openstack-nova-polkit.rules: polkit rules for the     new polkit that uses JavaScript. On openSUSE 12.3 and     later, we install this file in /etc/polkit-1/rules.d/     instead of installing the pkla file which is of no use     with the new polkit.

  - Update to version 2012.2.4+git.1361527907.d5e7f55 :

  + Avoid stuck task_state on snapshot image failure

  + Add a safe_minidom_parse_string function.
    (CVE-2013-1664)

  + Enable libvirt to work with NoopFirewallDriver

  + Fix state sync logic related to the PAUSED VM state

  + libvirt: Fix nova-compute start when missing ip.

  - Update to version 2012.2.4+git.1360133953.e5d0f4b :

  + Final versioning for 2012.2.3

  + Bump version to 2012.2.4

  - Update to version 2012.2.3+git.1359529791.317cc0a :

  + remove session parameter from fixed_ip_get

  + Eliminate race conditions in floating association

  + Fix to include error message in instance faults

  + disallow boot from volume from specifying arbitrary     volumes (CVE-2013-0208)

  - Update to version 2012.2.3+git.1359111576.03c3e9b :

  + Ensure that Quantum uses configured fixed IP

  + Makes sure compute doesn't crash on failed resume.

  - Update to version 2012.2.3+git.1358515929.3545a7d :

  + Add NFS to the libvirt volume driver list

  + Call plug_vifs() for all instances in init_host

  + Fix addition of CPU features when running against legacy     libvirt

  + Fix typo in resource tracker audit message

  - Move back to 'git_tarballs' source service.

  - Start using obs-service-github_tarballs

  - Update to version 2012.2.3+git.1358434328.a41b913 :

  + Provide better error message for aggregate-create

  + Fix errors in used_limits extension

  + Add an iptables mangle rule per-bridge for DHCP.

  + Limit formatting routes when adding resources

Changes in openstack-quantum :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Update to version 2012.2.4+git.1362583635.f94b149 :

  + L3 port delete prevention: do not raise if no IP on port

  - Update to version 2012.2.4+git.1362504084.06e42f8 :

  + Close file descriptors when executing sub-processes

  + Persist updated expiration time

  - Update to version 2012.2.4+git.1361527969.4de49b4 :

  + only destroy single namespace if router_id is set

  + Enable OVS and NETNS utilities to perform logging

  + Disable dhcp_domain distribution when dhcp_domain is     empty

  + Shorten the DHCP default resync_interval

  - Update to version 2012.2.4+git.1360134016.d2a85e6 :

  + Final versioning for 2012.2.3

  + Bump version to 2012.2.4

  - Update to version 2012.2.3+git.1359529852.a84ba7e :

  + Regression caused by commit b56c2c998

  + LinuxBridge: update status according to admin_state_up

  + Ensure that correct root helper is used

Changes in openstack-quickstart :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Update to latest git (cb0fbe8) :

  + Enalbe Cinder and Swift Service endpoints

  + Setup Cinder properly

  - Update to latest git (95d7088) :

  + Fill in values in the cinder/api-paste.ini templatae

Changes in openstack-swift :

  - Update to version 1.7.4.1+git.1359529903.0ce3e1d :

  + Use pypi for python-swiftclient dependency.

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Update to version 1.7.4.1+git.1359529903.0ce3e1d :

  + Use pypi for python-swiftclient dependency.

Changes in python-cinderclient :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Add compat-newer-requests.patch: take patches from     upstream to allow working with newer versions of     python-requests.

Changes in python-django_openstack_auth :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Update to version 1.0.6 :

  + Fix compatibility with keystoneclient v0.2.

  - Changes from version 1.0.5 :

  + Improves error handling; fixes failing test.

Changes in python-keystoneclient :

  - Update 12.3 packages to Folsom as of March 5th. This     comes with&middot; security fixes and bug fixes that we     need to have OpenStack work nicely. Fix bnc#802278.

  - Add compat-newer-requests.patch: take patches from     upstream to allow working with newer versions of     python-requests.

The remote host is affected by the vulnerability described in GLSA-201311-06 (libxml2: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in libxml2. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted       document with an application linked against libxml2, possibly resulting       in execution of arbitrary code with the privileges of the process or a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

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. (CVE-2012-4520)

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. (CVE-2013-0305)

It was discovered that Django incorrectly handled a large number of forms when generating formsets. An attacker could use this flaw to cause Django to consume memory, resulting in a denial of service.
(CVE-2013-0306)

It was discovered that Django incorrectly deserialized XML. An attacker could use this flaw to perform entity-expansion and external-entity/DTD attacks. This updated modified Django behaviour to no longer allow DTDs, perform entity expansion, or fetch external entities/DTDs. (CVE-2013-1664, CVE-2013-1665).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

security updates: - ensure user and tenant are enabled CVE-2013-0282 - disable XML entity parsing CVE-2013-1664, CVE-2013-1665

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The Django Project reports :

These security releases fix four issues: one potential phishing vector, one denial-of-service vector, an information leakage issue, and a range of XML vulnerabilities.

- Host header poisoning

an attacker could cause Django to generate and display URLs that link to arbitrary domains. This could be used as part of a phishing attack.
These releases fix this problem by introducing a new setting, ALLOWED_HOSTS, which specifies a whitelist of domains your site is known to respond to.

Important: by default Django 1.3.6 and 1.4.4 set ALLOWED_HOSTS to allow all hosts. This means that to actually fix the security vulnerability you should define this setting yourself immediately after upgrading.

- Formset denial-of-service

an attacker can abuse Django's tracking of the number of forms in a formset to cause a denial-of-service attack. This has been fixed by adding a default maximum number of forms of 1,000. You can still manually specify a bigger max_num, if you wish, but 1,000 should be enough for anyone.

- XML attacks

Django's serialization framework was vulnerable to attacks via XML entity expansion and external references; this is now fixed. However, if you're parsing arbitrary XML in other parts of your application, we recommend you look into the defusedxml Python packages which remedy this anywhere you parse XML, not just via Django's serialization framework.

- Data leakage via admin history log

Django's admin interface could expose supposedly-hidden information via its history log. This has been fixed.

Joshua Harlow discovered that Nova would allow XML entity processing.
A remote unauthenticated attacker could exploit this using the Nova API to cause a denial of service via resource exhaustion.
(CVE-2013-1664).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Stuart Stent discovered that Cinder would allow XML entity processing.
A remote unauthenticated attacker could exploit this using the Cinder API to cause a denial of service via resource exhaustion.
(CVE-2013-1664).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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. (CVE-2013-0282)

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.
(CVE-2013-1664, CVE-2013-1665).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
79964	GLSA-201412-11 : AMD64 x86 emulation base libraries: Multiple vulnerabilities (Heartbleed)	Nessus	Gentoo Local Security Checks	critical
74936	openSUSE Security Update : openstack (openSUSE-2013-237)	Nessus	SuSE Local Security Checks	medium
70836	GLSA-201311-06 : libxml2: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
65096	Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : python-django vulnerabilities (USN-1757-1)	Nessus	Ubuntu Local Security Checks	medium
64997	Fedora 18 : openstack-keystone-2012.2.3-3.fc18 (2013-2916)	Nessus	Fedora Local Security Checks	medium
64873	FreeBSD : django -- multiple vulnerabilities (21c59f5e-7cc5-11e2-9c11-080027a5ec9a)	Nessus	FreeBSD Local Security Checks	medium
64800	Ubuntu 11.10 / 12.04 LTS / 12.10 : nova vulnerability (USN-1734-1)	Nessus	Ubuntu Local Security Checks	medium
64783	Ubuntu 12.10 : cinder vulnerability (USN-1731-1)	Nessus	Ubuntu Local Security Checks	medium
64782	Ubuntu 12.04 LTS / 12.10 : keystone vulnerabilities (USN-1730-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2013-1664

medium

Tenable Plugins

critical

medium

high

medium

medium

medium

medium

medium

medium