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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade libvirt | Jul 30, 2024 | Apr 14, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 9, 2011 |
| Suse | — | Upgrade libvirt-daemon-lxcUpgrade libvirt-daemon-driver-storage-scsiUpgrade libvirtUpgrade libvirt-docUpgrade libvirt-client-qemuUpgrade libvirt-daemon-driver-storage-mpathUpgrade libvirt-daemon-driver-interfaceUpgrade libvirt-daemon-qemuUpgrade libvirt-daemon-driver-storage-rbdUpgrade libvirt-adminUpgrade libvirt-daemon-driver-storage-iscsi-directUpgrade libvirt-daemon-logUpgrade libvirt-daemon-driver-storage-coreUpgrade libvirt-pythonUpgrade libvirt-daemon-proxyUpgrade libvirt-daemon-driver-nodedevUpgrade libvirt-libsUpgrade libvirt-daemonUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirt-daemon-hooksUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-daemon-commonUpgrade libvirt-develUpgrade libvirt-devel-32bitUpgrade libvirt-nssUpgrade libvirt-daemon-xenUpgrade libvirt-clientUpgrade libvirt-daemon-driver-storage-logicalUpgrade libvirt-daemon-plugin-lockdUpgrade libvirt-daemon-driver-lxcUpgrade libvirt-lock-sanlockUpgrade libvirt-client-32bitUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-daemon-driver-networkUpgrade libvirt-daemon-lockUpgrade libvirt-daemon-driver-libxlUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-daemon-driver-storageUpgrade libvirt-ssh-proxyUpgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-qemuUpgrade libvirt-daemon-config-network | Aug 9, 2024 | Jul 9, 2013 |
| Ubuntu | — | Upgrade libvirt0Upgrade libvirt-bin | Feb 2, 2016 | Jan 12, 2016 |
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