GHSA-9773-3fqg-8w25

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GHSA-9773-3fqg-8w25

Summary: OpenStack Neutron's unsupported dport option prevents applying security groups

Details: 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: https://nvd.nist.gov/vuln/detail/CVE-2019-9735, https://access.redhat.com/errata/RHSA-2019:0879, https://access.redhat.com/errata/RHSA-2019:0916, https://access.redhat.com/errata/RHSA-2019:0935, https://github.com/openstack/neutron, https://github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2019-190.yaml, https://launchpad.net/bugs/1818385, https://seclists.org/bugtraq/2019/Mar/24, https://security.openstack.org/ossa/OSSA-2019-001.html, https://usn.ubuntu.com/4036-1, https://web.archive.org/web/20201208185619/http://www.securityfocus.com/bid/107390, https://www.debian.org/security/2019/dsa-4409, http://www.openwall.com/lists/oss-security/2019/03/18/2, http://www.securityfocus.com/bid/107390