Vulnerability Description
When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Advanced Web Application Firewall | >= 11.6.1, <= 11.6.5 |
| F5 | Big-Ip Application Security Manager | >= 11.6.1, <= 11.6.5 |
References
- https://support.f5.com/csp/article/K58102101Vendor Advisory
- https://support.f5.com/csp/article/K58102101Vendor Advisory
FAQ
What is CVE-2020-27718?
CVE-2020-27718 is a vulnerability with a CVSS score of 7.5 (HIGH). When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an ...
How severe is CVE-2020-27718?
CVE-2020-27718 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-2020-27718?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager.