CVE-2017-7543
OpenStack Neutron Race Condition vulnerability
5.9
MEDIUM
CVSS 3.1
EPSS 1.8%
描述
A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.
如何修補 CVE-2017-7543
要修補 CVE-2017-7543,請將受影響套件升級到下列已修補版本。
- —升級至 7.2.0-12.1 或更新版本
CVE-2017-7543 正在被利用嗎?
低 — EPSS 為 1.8%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 7.2.0-12.1, >= 8.0.0, < 8.3.0-11.1, >= 9.0.0, < 9.3.1-2.1, >= 10.0.0, < 10.0.2-1.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |