{"id":"CVE-2013-4185","aliases":["GHSA-ph2h-hh49-vh27","PYSEC-2026-879"],"url":"https://o3.security/vulnerability/CVE-2013-4185","summary":"OpenStack Nova Denial of Service in network source security groups","details":"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.","published":"2013-10-29T22:55:02Z","modified":"2026-07-07T11:56:12.622909684Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"nova","fixedVersion":"12.0.0a0"}],"fix":{"url":"http://github.com/openstack/nova/commit/52ad911963da4095b213952dee3a430fe0c4c30f","label":"openstack/nova@52ad911"},"references":[{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2013-1199.html"},{"type":"ADVISORY","url":"http://seclists.org/oss-sec/2013/q3/282"},{"type":"ADVISORY","url":"https://bugs.launchpad.net/nova/+bug/1184041"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4185"},{"type":"PACKAGE","url":"https://github.com/openstack/nova"},{"type":"WEB","url":"http://github.com/openstack/nova/commit/52ad911963da4095b213952dee3a430fe0c4c30f"},{"type":"WEB","url":"http://github.com/openstack/nova/commit/85aac04704350566d6b06aa7a3b99649946c672c"},{"type":"WEB","url":"http://github.com/openstack/nova/commit/d4ee081c5c0a5132781235177c430ebcf72b0b0b"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-07T11:56:12.622909684Z"}}