CVE-2019-6612
HIGHCVSS 7.5/10EPSS 1.77%
Last modified
CVE-2019-6612 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, DNS query TCP connections that are aborted before receiving a response from a DNS cache may cause TMM to restart.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.
Description
On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, DNS query TCP connections that are aborted before receiving a response from a DNS cache may cause TMM to restart.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Access Policy Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Access Policy Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Access Policy Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Access Policy Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Advanced Firewall Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Application Acceleration Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Link Controller | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Link Controller | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Link Controller | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Link Controller | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Link Controller | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Policy Enforcement Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Policy Enforcement Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Policy Enforcement Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Policy Enforcement Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Policy Enforcement Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Application Security Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Application Security Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Application Security Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Application Security Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Local Traffic Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Local Traffic Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Local Traffic Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Local Traffic Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Local Traffic Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Global Traffic Manager | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Global Traffic Manager | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Global Traffic Manager | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Global Traffic Manager | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Global Traffic Manager | >= 14.0.0, < 14.1.0.2 |
| F5 | Big-Ip Domain Name System | >= 11.5.2, < 11.5.9 |
| F5 | Big-Ip Domain Name System | >= 11.6.1, < 11.6.4 |
| F5 | Big-Ip Domain Name System | >= 12.1.0, < 12.1.4.1 |
| F5 | Big-Ip Domain Name System | >= 13.0.0, < 13.1.1.5 |
| F5 | Big-Ip Domain Name System | >= 14.0.0, < 14.1.0.2 |
References
- http://www.securityfocus.com/bid/108295Broken Link, Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K24401914Vendor Advisory
- http://www.securityfocus.com/bid/108295Broken Link, Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K24401914Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-6612?
On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, DNS query TCP connections that are aborted before receiving a response from a DNS cache may cause TMM to restart.
How severe is CVE-2019-6612?
CVE-2019-6612 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.
How do I fix CVE-2019-6612?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-6612?
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