CVE-2012-2101: n/a vulnerability

CVE-2012-2101: Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the number of security group rules, whic...

Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the number of security group rules, which allows remote authenticated users with certain permissions to cause a denial of service (CPU and hard drive consumption) via a network request that triggers a large number of iptables rules.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 19:26 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old OpenStack Nova denial-of-service issue. A permitted cloud user could create too many security group rules, forcing the platform to process large iptables rule sets and consume CPU and disk resources. It affects legacy Nova releases named in the CVE sources. Exposure is most likely in legacy OpenStack Compute deployments running the named Nova releases or downstream packages from that era. The attacker needs valid authentication and permission to create or modify security group rules. Prioritize if any legacy OpenStack Nova environment remains in production or supports untrusted tenants. For fully upgraded platforms, treat as a validation item rather than an emergency. Mitigation focus: Check OpenStack Nova version and downstream package advisories for CVE-2012-2101 coverage.; Apply vendor fixes referenced by OpenStack, Ubuntu, Fedora, or your distribution.; Verify security group rule quotas are enforced for all tenant roles..

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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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 7, 2012, 19:00 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

0Timeline events

0ADP providers

7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/openstack/nova/commit/1f644d210557b1254f7c7b39424b09a45329ade7CVE reference · x_refsource_CONFIRM
https://github.com/openstack/nova/commit/8c8735a73afb16d5856f0aa6088e9ae406c52bebCVE reference · x_refsource_CONFIRM
[openstack] 20120419 [OSSA 2012-005] No quota enforced on security group rulesCVE reference · mailing-list, x_refsource_MLIST
nova-quotas-dos(75243)CVE reference · vdb-entry, x_refsource_XF
https://github.com/openstack/nova/commit/a67db4586f70ed881d65e80035b2a25be195ce64CVE reference · x_refsource_CONFIRM
https://bugs.launchpad.net/nova/+bug/969545CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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