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PYSEC-2026-874

OpenStack Nova DoS through ephemeral disk backing files

Quick fix

PYSEC-2026-874 — nova: upgrade to the fixed version with the command below.

pip install --upgrade 'nova>=12.0.0a0'

Details

The libvirt driver in OpenStack Compute (Nova) before 2013.2.2 and icehouse before icehouse-2 allows remote authenticated users to cause a denial of service (disk consumption) by creating and deleting instances with unique os_type settings, which triggers the creation of a new ephemeral disk backing file.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/nova

Introduced in: 0Fixed in: 12.0.0a0

Fixpip install --upgrade 'nova>=12.0.0a0'

References

https://nvd.nist.gov/vuln/detail/CVE-2013-6437[ADVISORY]
https://github.com/openstack/nova/commit/3e451f1bac57d24e47171cffb3ad59bb1610d836[WEB]
https://github.com/openstack/nova/commit/6e455cd97f04bf26bbe022be17c57e089cf502f4[WEB]
https://github.com/openstack/nova/commit/ca38774ebcf5b67d16c202c8f218c0c433973ca9[WEB]
https://bugs.launchpad.net/nova/+bug/1253980[WEB]
https://github.com/openstack/nova[PACKAGE]
http://lists.openstack.org/pipermail/openstack-announce/2013-December/000179.html[WEB]
http://rhn.redhat.com/errata/RHSA-2014-0231.html[WEB]
https://pypi.org/project/nova[PACKAGE]
https://github.com/advisories/GHSA-hrv9-4x4c-9jc8[ADVISORY]