CVSS 3.0
6.5 mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2019-9735
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.)
Severity
- EPSS
- 3.7% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
- CWE
- CWE-755
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- openstack:neutron
- redhat:openstack
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9773-3fqg-8w25 | PyPI | neutron | <10.0.8 | 10.0.8 |
| GHSA-9773-3fqg-8w25 | PyPI | neutron | >=11.0.0 <11.0.7 | 11.0.7 |
| GHSA-9773-3fqg-8w25 | PyPI | neutron | >=12.0.0 <12.0.6 | 12.0.6 |
| GHSA-9773-3fqg-8w25 | PyPI | neutron | >=13.0.0 <13.0.3 | 13.0.3 |
| PYSEC-2019-190 | PyPI | neutron | >=12.0.0 <12.0.6 >=13.0.0 <13.0.3 >=11.0.0 <11.0.7 <10.0.8 | 12.0.6, 13.0.3, 11.0.7, 10.0.8 |