CVE-2021-38598
OpenStack Neutron vulnerable to hardware address impersonation
9.1
CRITICAL
CVSS 3.1
EPSS 1.2%
描述
OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtables-nft is used on a Netfilter-based platform. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the hardware addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations.
如何修補 CVE-2021-38598
要修補 CVE-2021-38598,請將受影響套件升級到下列已修補版本。
- —升級至 2:17.2.1-0+deb11u1 或更新版本
- —升級至 16.4.1 或更新版本
- —升級至 16.4.1 或更新版本
CVE-2021-38598 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, < 2:17.2.1-0+deb11u1
- from 0, < 16.4.1
- from 0, < 16.4.1, >= 17.0.0, < 17.1.3, >= 18.0.0, < 18.1.0
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:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |