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GHSA-9773-3fqg-8w25

OpenStack Neutron's unsupported dport option prevents applying security groups

Source: GitHub Advisory Database (reviewed) High CVE-2019-9735

Packages

EcosystemPackageAffectedFixed in
PyPI neutron < 10.0.8 10.0.8
PyPI neutron >= 11.0.0, < 11.0.7 11.0.7
PyPI neutron >= 12.0.0, < 12.0.6 12.0.6
PyPI neutron >= 13.0.0, < 13.0.3 13.0.3

Details

As written in the advisory (Markdown source, shown as plain text).

An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)

References

External links from the advisory. They lead to third-party sites.