CVE-2013-4185 OpenStack Nova Denial of Service in network source security groups

What is CVE-2013-4185?

CVE-2013-4185 is a medium-severity denial of service vulnerability in Redhat Openstack, published on 29 Oct 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-310

Which versions are affected by CVE-2013-4185?

3 open source packages ship an affected version, including nova. It affects 2 products.

Products include Openstack Compute, Redhat Openstack.

How do I fix CVE-2013-4185?

Upgrade nova to 12.0.0a0 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2013-4185 being exploited?

There is no known exploitation of CVE-2013-4185 in the wild and no public exploit code.

Other vulnerabilities in Redhat Openstack

• CVE-2013-7130 OpenStack Nova Live migration can leak root disk into ephemeral storage High 7.1
• CVE-2014-0167 OpenStack Compute (Nova) allows remote authenticated users to gain privileges via API requests Medium 6.0
• CVE-2015-2687 OpenStack Compute (Nova) Improper Access Control Medium 4.7
• CVE-2013-4179 OpenStack Compute (Nova) vulnerable to denial of service via XML Entity Expansion attack Medium 4.3
• CVE-2012-2654 OpenStack Compute (Nova) Improper Input Validation Medium 4.3

All Redhat Openstack vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2013-4185, GHSA-ph2h-hh49-vh27, PYSEC-2026-879.