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PYSEC-2026-875

OpenStack Compute (Nova) vulnerable to denial of service via XML Entity Expansion attack

Quick fix

PYSEC-2026-875 — nova: upgrade to the fixed version with the command below.

pip install --upgrade 'nova>=2013.2'

Details

The security group extension in OpenStack Compute (Nova) Grizzly 2013.1.3, Havana before havana-3, and earlier allows remote attackers to cause a denial of service (resource consumption and crash) via an XML Entity Expansion (XEE) attack. NOTE: this issue is due to an incomplete fix for CVE-2013-1664.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/nova

Introduced in: 0Fixed in: 2013.2

Fixpip install --upgrade 'nova>=2013.2'

References

https://nvd.nist.gov/vuln/detail/CVE-2013-4179[ADVISORY]
https://access.redhat.com/errata/RHSA-2013:1199[WEB]
https://access.redhat.com/security/cve/CVE-2013-4179[WEB]
https://bugs.launchpad.net/ossa/+bug/1190229[WEB]
https://bugzilla.redhat.com/show_bug.cgi?id=989707[WEB]
https://opendev.org/openstack/nova[PACKAGE]
http://rhn.redhat.com/errata/RHSA-2013-1199.html[WEB]
http://www.ubuntu.com/usn/USN-2005-1[WEB]
https://pypi.org/project/nova[PACKAGE]
https://github.com/advisories/GHSA-j6xh-q826-55jw[ADVISORY]