CVE-2020-5877
HIGHCVSS 7.5/10EPSS 1.28%
Last modified
CVE-2020-5877 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On BIG-IP 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, malformed input to the DATAGRAM::tcp iRules command within a FLOW_INIT event may lead to a denial of service.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.
Description
On BIG-IP 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, malformed input to the DATAGRAM::tcp iRules command within a FLOW_INIT event may lead to a denial of service.
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 | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Access Policy Manager | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Access Policy Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Access Policy Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Access Policy Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Advanced Firewall Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Analytics | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Analytics | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Analytics | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Analytics | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Analytics | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Application Acceleration Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Application Security Manager | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Application Security Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Application Security Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Application Security Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Domain Name System | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Domain Name System | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Domain Name System | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Domain Name System | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Domain Name System | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Fraud Protection Service | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Fraud Protection Service | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Fraud Protection Service | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Fraud Protection Service | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Fraud Protection Service | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Global Traffic Manager | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Global Traffic Manager | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Global Traffic Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Global Traffic Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Global Traffic Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Link Controller | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Link Controller | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Link Controller | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Link Controller | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Link Controller | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Local Traffic Manager | >= 11.6.1, <= 11.6.5.1 |
| F5 | Big-Ip Local Traffic Manager | >= 12.1.0, <= 12.1.5.1 |
| F5 | Big-Ip Local Traffic Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Local Traffic Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Local Traffic Manager | >= 15.0.0, <= 15.1.0.1 |
Showing 50 of 55 affected configurations. See NVD for the full list.
References
- https://support.f5.com/csp/article/K54200228Vendor Advisory
- https://support.f5.com/csp/article/K54200228Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5877?
On BIG-IP 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, malformed input to the DATAGRAM::tcp iRules command within a FLOW_INIT event may lead to a denial of service.
How severe is CVE-2020-5877?
CVE-2020-5877 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5877?
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.
Are you affected by CVE-2020-5877?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST