Vulnerability Description
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.)
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openstack | Neutron | < 10.0.8 |
| Redhat | Openstack | 10 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2019/03/18/2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/107390Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:0879Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0916Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0935Third Party Advisory
- https://launchpad.net/bugs/1818385ExploitIssue TrackingPatch
- https://seclists.org/bugtraq/2019/Mar/24Mailing ListThird Party Advisory
- https://security.openstack.org/ossa/OSSA-2019-001.htmlPatchVendor Advisory
- https://usn.ubuntu.com/4036-1/
- https://www.debian.org/security/2019/dsa-4409Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/03/18/2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/107390Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:0879Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0916Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0935Third Party Advisory
FAQ
What is CVE-2019-9735?
CVE-2019-9735 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2019-9735?
CVE-2019-9735 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-9735?
Check the references section above for vendor advisories and patch information. Affected products include: Openstack Neutron, Redhat Openstack, Debian Debian Linux.