{"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":null,"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":"EVIDENCE","url":"https://bugs.launchpad.net/nova/+bug/1184041"},{"type":"FIX","url":"http://seclists.org/oss-sec/2013/q3/282"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-07T11:56:12.622909684Z"}}