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PYSEC-2026-876
OpenStack Compute (Nova) does not verify the virtual size of a QCOW2 image
Quick fix
PYSEC-2026-876 — nova: upgrade to the fixed version with the command below.
pip install --upgrade 'nova>=12.0.0a0'Details
OpenStack Compute (Nova) Folsom, Grizzly, and Havana does not verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) by creating an image with a large virtual size that does not contain a large amount of data.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2013-2096[ADVISORY]
- https://github.com/openstack/nova/commit/0caeb8eaf20abcdc77828f5c6b79fc104619e231[WEB]
- https://github.com/openstack/nova/commit/44a8aba1d5da87d54db48079103fdef946666d80[WEB]
- https://github.com/openstack/nova[PACKAGE]
- https://review.openstack.org/#/c/28717[WEB]
- https://review.openstack.org/#/c/28901[WEB]
- https://review.openstack.org/#/c/29192[WEB]
- https://web.archive.org/web/20130726040108/http://www.securityfocus.com/bid/59924[WEB]
- http://lists.openstack.org/pipermail/openstack-announce/2013-May/000102.html[WEB]
- http://www.ubuntu.com/usn/USN-1831-1[WEB]
- https://pypi.org/project/nova[PACKAGE]
- https://github.com/advisories/GHSA-m674-hmx2-ffhq[ADVISORY]