MEDIUM4.3

PYSEC-2026-911

OpenStack Nova uses insecure keystone middleware tmpdir by default

Quick fix

PYSEC-2026-911 — python-keystoneclient: upgrade to the fixed version with the command below.

pip install --upgrade 'python-keystoneclient>=0.2.4'

Details

keystone/middleware/auth_token.py in OpenStack Nova Folsom, Grizzly, and Havana uses an insecure temporary directory for storing signing certificates, which allows local users to spoof servers by pre-creating this directory, which is reused by Nova, as demonstrated using /tmp/keystone-signing-nova on Fedora.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/python-keystoneclient

Introduced in: 0Fixed in: 0.2.4

Fixpip install --upgrade 'python-keystoneclient>=0.2.4'

References

https://nvd.nist.gov/vuln/detail/CVE-2013-2030[ADVISORY]
https://github.com/openstack/nova/commit/58d6879b1caaa750c39c8e452a0634c24ffef2ce[WEB]
https://github.com/openstack/nova/commit/74aa04e2ca7942cb1e1a86dcbaffeb72d260ccd7[WEB]
https://github.com/openstack/nova/commit/7bf3e8d3e254d817ff5ae7ef1f2884b10410ca60[WEB]
https://github.com/openstack/python-keystoneclient/commit/1736e2ffb12f70eeebed019448bc14def48aa036[WEB]
https://bugs.launchpad.net/nova/+bug/1174608[WEB]
https://bugzilla.redhat.com/show_bug.cgi?id=958285[WEB]
https://github.com/openstack/nova[PACKAGE]
https://github.com/pypa/advisory-database/tree/main/vulns/nova/PYSEC-2013-45.yaml[WEB]
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105916.html[WEB]
http://lists.openstack.org/pipermail/openstack-announce/2013-May/000098.html[WEB]
http://www.openwall.com/lists/oss-security/2013/05/09/2[WEB]
https://pypi.org/project/python-keystoneclient[PACKAGE]
https://github.com/advisories/GHSA-pxxv-rv32-2qgv[ADVISORY]