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.)

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4409-1 neutron security update
EUVD EUVD EUVD-2019-0090 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.)
Github GHSA Github GHSA GHSA-9773-3fqg-8w25 OpenStack Neutron's unsupported dport option prevents applying security groups
Ubuntu USN Ubuntu USN USN-4036-1 OpenStack Neutron vulnerability
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T22:01:53.985Z

Reserved: 2019-03-12T00:00:00

Link: CVE-2019-9735

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-03-13T02:29:00.277

Modified: 2024-11-21T04:52:12.073

Link: CVE-2019-9735

cve-icon Redhat

Severity : Important

Publid Date: 2019-03-03T00:00:00Z

Links: CVE-2019-9735 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses