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TI-2013-03658 Aliases CVE-2013-4185GHSA-ph2h-hh49-vh27

Algorithmic complexity vulnerability in OpenStack Compute (Nova) before 2013.1.3 and…

Priority LOW 23CWE-310Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

Algorithmic complexity vulnerability in OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-3 does not properly handle network source security group policy updates, which allows remote authenticated users to cause a denial of service (nova-network consumption) via a large number of server-creation operations, which triggers a large number of update requests.

Why it matters now

EPSS 0.02105 81st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial nova (PyPI): 12.0.0a0Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—nova (PyPI)before 12.0.0a012.0.0a0Patch availableGHSA-ph2h-hh49-vh27
  • — 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-ph2h-hh49-vh27

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:openstack:compute:*:*:*:*:*:*:*:*2013.1 to before 2013.1.3; 2013.2 to before 2013.2.3VulnerableOpenStack
cpe:2.3:a:redhat:openstack:3.0:*:*:*:*:*:*:*3.0VulnerableRed Hat
  • cpe:2.3:a:openstack:compute:*:*:*:*:*:*:*:* Versions 2013.1 to before 2013.1.3; 2013.2 to before 2013.2.3 Vulnerable ·OpenStack
  • cpe:2.3:a:redhat:openstack:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat

Remediation

  • Fix · GHSA-ph2h-hh49-vh27 nova (PyPI) Fixed in 12.0.0a0 Advisory →

Red Hat 1 advisory

  • RHSA-2013:1199 Released 2013-09-03 · Red Hat rating Moderate
    openstack-nova security and bug fix update
    • Red Hat Enterprise Linux OpenStack Platform 3.0 openstack-nova-2013.1.3-3.el6ost, openstack-nova-api-2013.1.3-3.el6ost, openstack-nova-cells-2013.1.3-3.el6ost +10

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenStack Platform 4AffectedNo fix yet
Red Hat Enterprise Linux OpenStack Platform 3.0Fixed RHSA-2013:1199

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-4185
  2. 2026-10-03 Alias added: GHSA-ph2h-hh49-vh27

References

Exploit 1

Patch 1

Advisory 2

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences