Upstream information

CVE-2021-38598 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5.8
Vector AV:N/AC:M/Au:N/C:N/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.1 5.9
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network Network
Attack Complexity Low High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact High High
Availability Impact High None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1189615 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 openstack-neutron Not affected
HPE Helion OpenStack 8 openstack-neutron-doc Not affected
SUSE OpenStack Cloud 7 openstack-neutron Not affected
SUSE OpenStack Cloud 7 openstack-neutron-doc Not affected
SUSE OpenStack Cloud 8 openstack-neutron Not affected
SUSE OpenStack Cloud 8 openstack-neutron-doc Not affected
SUSE OpenStack Cloud 9 openstack-neutron Not affected
SUSE OpenStack Cloud 9 openstack-neutron-doc Not affected
SUSE OpenStack Cloud Crowbar 8 openstack-neutron Not affected
SUSE OpenStack Cloud Crowbar 8 openstack-neutron-doc Not affected
SUSE OpenStack Cloud Crowbar 9 openstack-neutron Not affected
SUSE OpenStack Cloud Crowbar 9 openstack-neutron-doc Not affected


SUSE Timeline for this CVE

CVE page created: Tue Aug 17 18:01:10 2021
CVE page last modified: Sat Nov 5 16:20:35 2022