Vulnerability Monitor

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CVE-2021-38598

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.

Published

2021-08-23T05:15:08.193

Last Modified

2024-11-21T06:17:37.277

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.1 (CRITICAL)

CVSSv2 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
Exploitability Score

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-290
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openstack neutron < 16.4.1 Yes
Application openstack neutron < 17.1.3 Yes
Application openstack neutron 18.0.0 Yes
References