CVE-2021-38598
Last modified
CVE-2021-38598 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openstack | Neutron | < 16.4.1 |
| Openstack | Neutron | >= 17.0.0, < 17.1.3 |
| Openstack | Neutron | 18.0.0 |
References
- https://launchpad.net/bugs/1938670Exploit, Issue Tracking, Third Party Advisory
- https://launchpad.net/bugs/1938670Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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