UBUNTU-CVE-2021-20267

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Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2021-20267
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20267.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-20267
Related
Published
2021-05-28T19:15:00Z
Modified
2021-05-28T19:15:00Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / neutron

Package

Name
neutron

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2:7.*

2:7.0.0-0ubuntu1

2:8.*

2:8.0.0~b1-0ubuntu2
2:8.0.0~b2-0ubuntu4
2:8.0.0~b2-0ubuntu5
2:8.0.0~b2-0ubuntu7
2:8.0.0~b3-0ubuntu1
2:8.0.0~rc1-0ubuntu1
2:8.0.0-0ubuntu1
2:8.1.0-0ubuntu0.16.04.2
2:8.1.2-0ubuntu1
2:8.2.0-0ubuntu1
2:8.3.0-0ubuntu1
2:8.3.0-0ubuntu1.1
2:8.3.0-0ubuntu1.2
2:8.4.0-0ubuntu1
2:8.4.0-0ubuntu2
2:8.4.0-0ubuntu3
2:8.4.0-0ubuntu4
2:8.4.0-0ubuntu5
2:8.4.0-0ubuntu6
2:8.4.0-0ubuntu7.1
2:8.4.0-0ubuntu7.2
2:8.4.0-0ubuntu7.3
2:8.4.0-0ubuntu7.4
2:8.4.0-0ubuntu7.5

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / neutron

Package

Name
neutron
Purl
pkg:deb/ubuntu/neutron@2:12.1.1-0ubuntu8.1?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:12.1.1-0ubuntu8.1

Affected versions

2:11.*

2:11.0.1-0ubuntu1

2:12.*

2:12.0.0~b1-0ubuntu1
2:12.0.0~b1-0ubuntu2
2:12.0.0~b2-0ubuntu1
2:12.0.0~b3-0ubuntu1
2:12.0.0~rc1-0ubuntu1
2:12.0.0~rc2-0ubuntu1
2:12.0.0-0ubuntu1
2:12.0.0-0ubuntu1.1
2:12.0.0-0ubuntu1.2
2:12.0.0-0ubuntu1.3
2:12.0.0-0ubuntu1.4
2:12.0.0-0ubuntu2
2:12.0.0-0ubuntu3
2:12.0.1-0ubuntu1
2:12.0.1-0ubuntu1.1
2:12.0.2-0ubuntu1
2:12.0.3-0ubuntu1
2:12.0.5-0ubuntu1
2:12.0.5-0ubuntu4
2:12.0.5-0ubuntu5
2:12.0.6-0ubuntu1
2:12.0.6-0ubuntu2
2:12.0.6-0ubuntu3
2:12.1.0-0ubuntu1
2:12.1.1-0ubuntu1
2:12.1.1-0ubuntu2
2:12.1.1-0ubuntu3
2:12.1.1-0ubuntu4
2:12.1.1-0ubuntu7
2:12.1.1-0ubuntu8

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "neutron-plugin-linuxbridge-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-macvtap-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-common": "2:12.1.1-0ubuntu8.1",
            "neutron-metering-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-openvswitch-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-linuxbridge-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-l3-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-plugin-sriov-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-dhcp-agent": "2:12.1.1-0ubuntu8.1",
            "python-neutron": "2:12.1.1-0ubuntu8.1",
            "neutron-plugin-openvswitch-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-server": "2:12.1.1-0ubuntu8.1",
            "neutron-sriov-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-metadata-agent": "2:12.1.1-0ubuntu8.1",
            "neutron-plugin-ml2": "2:12.1.1-0ubuntu8.1"
        }
    ]
}

Ubuntu:20.04:LTS / neutron

Package

Name
neutron
Purl
pkg:deb/ubuntu/neutron@2:16.4.2-0ubuntu6.2?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:16.4.2-0ubuntu6.2

Affected versions

2:15.*

2:15.0.0-0ubuntu1

2:16.*

2:16.0.0~b1~git2019121613.3e8abb9a8f-0ubuntu1
2:16.0.0~b2~git2020020712.d5b33ffc77-0ubuntu1
2:16.0.0~b2~git2020020712.d5b33ffc77-0ubuntu3
2:16.0.0~b3~git2020032420.a0e1b5804e-0ubuntu1
2:16.0.0~b3~git2020032420.a0e1b5804e-0ubuntu2
2:16.0.0~b3~git2020032420.a0e1b5804e-0ubuntu3
2:16.0.0~b3~git2020032420.a0e1b5804e-0ubuntu4
2:16.0.0~b3~git2020041013.e74c8f8c88-0ubuntu1
2:16.0.0~b3~git2020041516.5f42488a9a-0ubuntu1
2:16.0.0~b3~git2020041516.5f42488a9a-0ubuntu2
2:16.0.0-0ubuntu0.20.04.1
2:16.0.0-0ubuntu0.20.04.2
2:16.1.0-0ubuntu1
2:16.1.0-0ubuntu2
2:16.2.0-0ubuntu1
2:16.2.0-0ubuntu2
2:16.2.0-0ubuntu3
2:16.3.0-0ubuntu3
2:16.3.1-0ubuntu1
2:16.3.1-0ubuntu1.1
2:16.3.2-0ubuntu2
2:16.3.2-0ubuntu3
2:16.4.0-0ubuntu2
2:16.4.0-0ubuntu3
2:16.4.1-0ubuntu2
2:16.4.2-0ubuntu1
2:16.4.2-0ubuntu2
2:16.4.2-0ubuntu3
2:16.4.2-0ubuntu4
2:16.4.2-0ubuntu5
2:16.4.2-0ubuntu6
2:16.4.2-0ubuntu6.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "python3-neutron": "2:16.4.2-0ubuntu6.2",
            "neutron-metadata-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-linuxbridge-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-l3-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-macvtap-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-ovn-metadata-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-dhcp-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-server": "2:16.4.2-0ubuntu6.2",
            "neutron-common": "2:16.4.2-0ubuntu6.2",
            "neutron-sriov-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-metering-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-openvswitch-agent": "2:16.4.2-0ubuntu6.2",
            "neutron-plugin-ml2": "2:16.4.2-0ubuntu6.2"
        }
    ]
}