Network Configuration Vulnerability in OpenStack Neutron by OpenStack
CVE-2019-10876

6.5MEDIUM

Key Information:

Vendor

Openstack
Status
Neutron
Vendor
CVE Published:
5 April 2019

What is CVE-2019-10876?

A vulnerability exists in OpenStack Neutron that can be exploited by authenticated users to disrupt network configurations. By creating overlapping security groups with conflicting port ranges, users can trigger a KeyError in the Open vSwitch (OVS) firewall. This prevents Neutron from properly configuring networks on affected compute nodes, thereby impairing network functionality and security. All deployments that utilize the neutron-openvswitch-agent are susceptible, making it essential for administrators to review their security group configurations to mitigate this risk.

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References

https://bugs.launchpad.net/ossa/+bug/1813007
x_refsource_MISC
https://review.openstack.org/#/q/topic:bug/1813007
x_refsource_MISC
https://security.openstack.org/ossa/OSSA-2019-002.html
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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