Описание
In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC aging time of 0 disables MAC learning in linuxbridge, forcing obligatory Ethernet flooding of non-local destinations, which both impedes network performance and allows users to possibly view the content of packets for instances belonging to other tenants sharing the same network. Only deployments using the linuxbridge backend are affected. This occurs in PyRoute2.add() in internal/command/ip/linux/impl_pyroute2.py.
Ссылки
- Mailing ListPatchThird Party Advisory
- Issue TrackingThird Party Advisory
- Patch
- Patch
- PatchVendor Advisory
- Mailing ListPatchThird Party Advisory
- Issue TrackingThird Party Advisory
- Patch
- Patch
- PatchVendor Advisory
Уязвимые конфигурации
Одно из
EPSS
9.1 Critical
CVSS3
6.4 Medium
CVSS2
Дефекты
Связанные уязвимости
In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC aging time of 0 disables MAC learning in linuxbridge, forcing obligatory Ethernet flooding of non-local destinations, which both impedes network performance and allows users to possibly view the content of packets for instances belonging to other tenants sharing the same network. Only deployments using the linuxbridge backend are affected. This occurs in PyRoute2.add() in internal/command/ip/linux/impl_pyroute2.py.
In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC aging time of 0 disables MAC learning in linuxbridge, forcing obligatory Ethernet flooding of non-local destinations, which both impedes network performance and allows users to possibly view the content of packets for instances belonging to other tenants sharing the same network. Only deployments using the linuxbridge backend are affected. This occurs in PyRoute2.add() in internal/command/ip/linux/impl_pyroute2.py.
In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC ...
OpenStack os-vif Ageing time of 0 disables linuxbridge MAC learning
EPSS
9.1 Critical
CVSS3
6.4 Medium
CVSS2