Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nova | 2013.1.2-3 | — |
| Debian 13 | nova | 2013.1.2-3 | — |
| Debian 12 | nova | 2013.1.2-3 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 3 | python-nova +12 | 2013.1.3-3.el6ost | RHSA-2013:1199 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | nova | < 12.0.0a0 | 12.0.0a0 | GHSA-ph2h-hh49-vh27 |
Advisories 1
- RHSA-2013:1199 Red Hat Security Advisory: openstack-nova security and bug fix update Red Hat Security Advisories (RHSA) · Aug 1, 2026