Vulnerability in OpenStack Neutron
CVE-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.)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.037 · change: +0.001
Affected products
- OpenStack Neutron
- Debian Linux — versions 9.0
- Red Hat OpenStack — versions 10, 13, 14
Weakness classification (CWE)
References
- www.securityfocus.com/bid/107390 (VDB Entry, Third Party Advisory, vdb-entry)
- launchpad.net/bugs/1818385 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- security.openstack.org/ossa/OSSA-2019-001.html (Patch, Vendor Advisory)
- www.openwall.com/lists/oss-security/2019/03/18/2 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/bugtraq/2019/Mar/24 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2019/dsa-4409 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0916 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0935 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0879 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4036-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2019-9735?
- CVE-2019-9735 is a medium-severity vulnerability in OpenStack Neutron, classified under Improper Handling of Exceptional Conditions. CVSS score: 6.5/10. Published 2019-03-13.
- How severe is CVE-2019-9735?
- Medium severity. CVSS v3 base score is 6.5 out of 10.