CVE-2019-9735
What it is
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.)
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of service disruption.
- Exploit odds
- 3.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.7% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.7% · EPSS, next 30 days
- Weakness
- CWE-755
- Record status
- Modified
Affected
- Openstack Neutron < 10.0.8
- Openstack Neutron < 11.0.7
- Openstack Neutron < 12.0.6
- Openstack Neutron < 13.0.3
- Redhat Openstack 10
- Redhat Openstack 13
- Redhat Openstack 14
- Debian Linux 9.0
Attack profile CVSS 3.0 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-9735.md and follow it. Check whether this project is affected by CVE-2019-9735. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://launchpad.net/bugs/1818385
- https://security.openstack.org/ossa/OSSA-2019-001.html
- https://launchpad.net/bugs/1818385
- https://security.openstack.org/ossa/OSSA-2019-001.html
References
- http://www.openwall.com/lists/oss-security/2019/03/18/2
- http://www.securityfocus.com/bid/107390
- 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://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://www.debian.org/security/2019/dsa-4409
- http://www.openwall.com/lists/oss-security/2019/03/18/2
- http://www.securityfocus.com/bid/107390
- 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://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://www.debian.org/security/2019/dsa-4409