CVE-2012-3371: n/a vulnerability

CVE-2012-3371: The Nova scheduler in OpenStack Compute (Nova) Folsom (2012.2) and Essex (2012.1), when DifferentHostFilter...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 20:05 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2012-3371 is a denial-of-service issue in legacy OpenStack Nova scheduling. An authenticated user could submit scheduler hints with many repeated server IDs, causing excessive database lookups and potentially hanging Nova scheduler activity when specific host filters are enabled. Exposure is most likely in old OpenStack Nova deployments still running Essex or Folsom, especially clouds allowing authenticated tenants to create servers with scheduler hints while SameHostFilter or DifferentHostFilter is enabled. Treat this as a legacy-cloud availability risk. It is not marked as actively exploited, but affected OpenStack control planes can be disrupted by authenticated tenants. Prioritize if old Nova environments remain in production. Mitigation focus: Apply OpenStack Nova or Ubuntu updates covering OSSA-2012-009 and USN-1501-1.; Confirm Nova includes the upstream fix referenced by the OpenStack commit.; Disable SameHostFilter or DifferentHostFilter if not operationally required..

Prepared: Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Database behavior lookup

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 17, 2012, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

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4Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
[openstack] 20120711 [OSSA 2012-009] Scheduler denial of service through scheduler_hints (CVE-2012-3371)CVE reference · mailing-list, x_refsource_MLIST
https://bugs.launchpad.net/nova/+bug/1017795CVE reference · x_refsource_CONFIRM
https://github.com/openstack/nova/commit/034762e8060dcf0a11cb039b9d426b0d0bb1801dCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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