{"id":"UBUNTU-CVE-2011-4600","details":"The networkReloadIptablesRules function in network/bridge_driver.c in libvirt before 0.9.9 does not properly handle firewall rules on bridge networks when libvirtd is restarted, which might allow remote attackers to bypass intended access restrictions via a (1) DNS or (2) DHCP query.","modified":"2026-01-30T00:48:25.039455Z","published":"2011-12-31T00:00:00Z","withdrawn":"2025-07-18T16:42:44Z","related":["USN-2867-1"],"upstream":["CVE-2011-4600"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2011-4600"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2867-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2011-4600"}],"affected":[{"package":{"name":"libvirt","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libvirt@1.2.2-0ubuntu13.1.14?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2-0ubuntu13.1.14"}]}],"versions":["1.1.1-0ubuntu8","1.1.1-0ubuntu9","1.1.4-0ubuntu2","1.1.4-0ubuntu3","1.1.4-0ubuntu4","1.1.4-0ubuntu5","1.2.0-0ubuntu1","1.2.0-0ubuntu2","1.2.0-0ubuntu3","1.2.1-0ubuntu1","1.2.1-0ubuntu2","1.2.1-0ubuntu3","1.2.1-0ubuntu4","1.2.1-0ubuntu5","1.2.1-0ubuntu7","1.2.1-0ubuntu8","1.2.1-0ubuntu9","1.2.1-0ubuntu10","1.2.2-0ubuntu1","1.2.2-0ubuntu2","1.2.2-0ubuntu3","1.2.2-0ubuntu4","1.2.2-0ubuntu5","1.2.2-0ubuntu6","1.2.2-0ubuntu7","1.2.2-0ubuntu8","1.2.2-0ubuntu9","1.2.2-0ubuntu10","1.2.2-0ubuntu11","1.2.2-0ubuntu12","1.2.2-0ubuntu13","1.2.2-0ubuntu13.1","1.2.2-0ubuntu13.1.1","1.2.2-0ubuntu13.1.2","1.2.2-0ubuntu13.1.4","1.2.2-0ubuntu13.1.5","1.2.2-0ubuntu13.1.6","1.2.2-0ubuntu13.1.7","1.2.2-0ubuntu13.1.8","1.2.2-0ubuntu13.1.9","1.2.2-0ubuntu13.1.10","1.2.2-0ubuntu13.1.12"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libvirt-bin","binary_version":"1.2.2-0ubuntu13.1.14"},{"binary_name":"libvirt-bin-dbgsym","binary_version":"1.2.2-0ubuntu13.1.14"},{"binary_name":"libvirt-dev","binary_version":"1.2.2-0ubuntu13.1.14"},{"binary_name":"libvirt-dev-dbgsym","binary_version":"1.2.2-0ubuntu13.1.14"},{"binary_version":"1.2.2-0ubuntu13.1.14","binary_name":"libvirt-doc"},{"binary_version":"1.2.2-0ubuntu13.1.14","binary_name":"libvirt0"},{"binary_name":"libvirt0-dbg","binary_version":"1.2.2-0ubuntu13.1.14"},{"binary_name":"libvirt0-dbgsym","binary_version":"1.2.2-0ubuntu13.1.14"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2011/UBUNTU-CVE-2011-4600.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"low"}]}