CVE-2018-14636
Openstack Neutron vulnerable to eavesdropping on private traffic
描述
Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.
如何修補 CVE-2018-14636
要修補 CVE-2018-14636,請將受影響套件升級到下列已修補版本。
- —升級至 2:13.0.0-1 或更新版本
- —升級至 13.0.0.0b2 或更新版本
- —升級至 11.0.5 或更新版本
CVE-2018-14636 正在被利用嗎?
低 — EPSS 為 1.2%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2:13.0.0-1
- >= 13.0.0.0b1, < 13.0.0.0b2
- >= 7.0.0, < 11.0.5, >= 12.0.0, < 12.0.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |