Vulnerability Description
On BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.5, under certain conditions when using custom TCP congestion control settings in a TCP profile, TMM stops processing traffic when processed by an iRule.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Analytics | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Domain Name System | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Fraud Protection Service | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Global Traffic Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Link Controller | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Local Traffic Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Policy Enforcement Manager | >= 12.1.0, <= 12.1.5 |
References
- https://support.f5.com/csp/article/K06747393Vendor Advisory
- https://support.f5.com/csp/article/K06747393Vendor Advisory
FAQ
What is CVE-2019-6677?
CVE-2019-6677 is a vulnerability with a CVSS score of 7.5 (HIGH). On BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.5, under certain conditions when using custom TCP congestion control settings in a TCP profile, TMM sto...
How severe is CVE-2019-6677?
CVE-2019-6677 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-2019-6677?
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 Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager.