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Fencer Intel
medium 4.0

CVE-2013-4185 json

OpenStack Nova Denial of Service in network source security groups

published 13y ago modified 4mo ago also GHSA-ph2h-hh49-vh27 , PYSEC-2026-879 , EUVD-2022-4765

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

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.

Patch / fix

  • pypi nova 12.0.0a0
  • openstack compute 2013.1.3, 2013.2.3
  • nova Debian 14, Debian 13, Debian 12 2013.1.2-3

debian advisories DEBIAN-CVE-2013-4185

  • openstack-nova openstack 3 2013.1.3-3.el6ost
  • python-nova openstack 3 2013.1.3-3.el6ost
  • openstack-nova-api openstack 3 2013.1.3-3.el6ost
  • openstack-nova-cert openstack 3 2013.1.3-3.el6ost
  • openstack-nova-cells openstack 3 2013.1.3-3.el6ost
  • openstack-nova-common openstack 3 2013.1.3-3.el6ost
  • openstack-nova-compute openstack 3 2013.1.3-3.el6ost
  • openstack-nova-console openstack 3 2013.1.3-3.el6ost

red hat advisories RHSA-2013:1199

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-4185 updated cvss 4.0

OpenStack: Nova network source security groups denial of service

  • Red Hat OpenStack Platform 4 openstack-nova
    affected: no fix available
  • Red Hat Enterprise Linux OpenStack Platform 3.0 python-nova 2013.1.3-3.el6ost, openstack-nova 2013.1.3-3.el6ost, openstack-nova-api 2013.1.3-3.el6ost, openstack-nova-cert 2013.1.3-3.el6ost, openstack-nova-cells 2013.1.3-3.el6ost, openstack-nova-common 2013.1.3-3.el6ost, +6 more
    fixed: vendor fix RHSA-2013:1199

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.11% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.launchpad.net https://bugs.launchpad.net/nova/+bug/1184041 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected packages

ecosystem package affected fixed in
pypi nova
<12.0.0a0
12.0.0a0

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.