Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-20267 | First vendor Publication | 2021-05-28 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.1 | ||
| Base Score | 7.1 | Environmental Score | 7.1 |
| impact SubScore | 4.2 | Temporal Score | 7.1 |
| Exploitabality Sub Score | 2.8 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | Low |
| Integrity Impact | None | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:S/C:P/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5.5 | Attack Range | Network |
| Cvss Impact Score | 4.9 | Attack Complexity | Low |
| Cvss Expoit Score | 8 | Authentication | Requires single instance |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A flaw was found in openstack-neutron's default Open vSwitch firewall rules. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the IPv6 addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations. Only deployments using the Open vSwitch driver are affected. Source: OpenStack project. Versions before openstack-neutron 15.3.3, openstack-neutron 16.3.1 and openstack-neutron 17.1.1 are affected. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20267 |
CPE : Common Platform Enumeration
Sources (Detail)
| Source | Url |
|---|
Alert History
| Date | Informations |
|---|---|
| 2024-11-28 13:50:41 |
|
| 2022-10-07 09:27:37 |
|
| 2021-08-05 01:41:32 |
|
| 2021-07-13 00:22:58 |
|
| 2021-06-10 21:23:14 |
|
| 2021-06-05 01:44:36 |
|
| 2021-06-05 01:43:24 |
|
| 2021-06-04 17:22:49 |
|
| 2021-06-03 01:40:15 |
|
| 2021-06-03 01:39:02 |
|
| 2021-06-02 17:22:46 |
|
| 2021-05-29 00:22:46 |
|
