The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when…
Priority LOW 21CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and GitHub.
Summary
The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when DifferentHostFilter or SameHostFilter is enabled, allows remote authenticated users to cause a denial of service (excessive database lookup calls and server hang) via a request with many repeated IDs in the os:scheduler_hints section.
Why it matters now
EPSS 0.01855 79th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Nova (PyPI): 12.0.0a0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | Nova (PyPI) | before 12.0.0a0 | 12.0.0a0 | Patch available | GHSA-xxgm-qpj5-4886 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- Nova (PyPI) Vendor— Affected before 12.0.0a0 Fixed in 12.0.0a0 Patch available GHSA-xxgm-qpj5-4886
Remediation
- Fix · GHSA-xxgm-qpj5-4886 Nova (PyPI) Fixed in 12.0.0a0 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2012-3371
- 2026-10-03 Alias added: GHSA-xxgm-qpj5-4886
References
Exploit 2
Other 4
- [openstack] 20120711 [OSSA 2012-009] Scheduler denial of service through scheduler_hints (CVE-2012-3371)
- [oss-security] 20120711 [OSSA 2012-009] Scheduler denial of service through scheduler_hints (CVE-2012-3371)
- https://github.com/openstack/nova
- https://github.com/pypa/advisory-database/tree/main/vulns/nova/PYSEC-2012-40.yaml
More OpenStack Compute vulnerabilities
- TI-2013-05849 The i_create_images_and_backing (aka create_images_and_backing) method in libvirt driver… CVSS 2.0HIGH 7.1
- TI-2014-00161 The Nova EC2 API security group implementation in OpenStack Compute (Nova) 2013.1 before… CVSS 2.0MEDIUM 6.0
- TI-2013-02015 Improper certificate validation in OpenStack Keystone CVSS 3.1MEDIUM 5.9
- TI-2013-03652 The security group extension in OpenStack Compute (Nova) Grizzly 2013.1.3, Havana before… CVSS 2.0MEDIUM 4.3
- TI-2012-02292 The (1) EC2 and (2) OS APIs in OpenStack Compute (Nova) Folsom (2012.2), Essex (2012.1)… CVSS 2.0MEDIUM 4.3
- TI-2013-03658 Algorithmic complexity vulnerability in OpenStack Compute (Nova) before 2013.1.3 and… CVSS 2.0MEDIUM 4.0
Sources
- CVE-2012-3371 · CVE Program
- CVE-2012-3371 · NVD
- FIRST EPSS
- GHSA-xxgm-qpj5-4886 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-3371 · Red Hat security data · CC BY 4.0
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