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cve[email protected]CVE-2021-38598
HistoryAug 23, 2021 - 5:15 a.m.

CVE-2021-38598

2021-08-2305:15:08
CWE-290
[email protected]
web.nvd.nist.gov
63
7
cve-2021-38598
openstack neutron
hardware address impersonation
linuxbridge driver
ebtables-nft
denial of service
interception of traffic

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:P/A:P

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

8.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.7%

JSON

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.

Affected configurations

NVD
Node
openstackneutronRange<16.4.1
OR
openstackneutronRange17.0.0–17.1.3
OR
openstackneutronMatch18.0.0

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5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:P/A:P

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

8.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.7%

JSON
Related for CVE-2021-38598
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