Vulnerability Description
On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, TMM will crash and take the configured failover action, potentially causing a denial of service. The configuration which exposes this issue is not common and in general does not work when enabled in previous versions of BIG-IP. Starting in 12.1.0, BIG-IP will crash if the configuration which exposes this issue is enabled and the virtual server receives non TCP traffic. With the fix of this issue, additional configuration validation logic has been added to prevent this configuration from being applied to a virtual server. There is only data plane exposure to this issue with a non-standard configuration. There is no control plane exposure.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 12.1.0, < 12.1.3.2 |
| F5 | Big-Ip Advanced Firewall Manager | >= 12.1.0, < 12.1.3.2 |
| F5 | Big-Ip Application Acceleration Manager | >= 12.1.0, < 12.1.3.2 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, < 12.3.1.2 |
| F5 | Big-Ip Link Controller | >= 12.1.0, < 12.1.3.2 |
| F5 | Big-Ip Local Traffic Manager | >= 12.1.0, < 12.1.3.2 |
| F5 | Big-Ip Policy Enforcement Manager | >= 12.1.0, < 12.1.3.2 |
| F5 | Big-Ip Websafe | 1.0.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/103504Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040562Third Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K49440608Vendor Advisory
- http://www.securityfocus.com/bid/103504Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040562Third Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K49440608Vendor Advisory
FAQ
What is CVE-2018-5509?
CVE-2018-5509 is a vulnerability with a CVSS score of 7.5 (HIGH). On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, TMM will crash and take the configured failover action, pote...
How severe is CVE-2018-5509?
CVE-2018-5509 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-5509?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Link Controller.