CVE-2021-23009
High
Description
On BIG-IP version 16.0.x before 16.0.1.1 and 15.1.x before 15.1.3, malformed HTTP/2 requests may cause an infinite loop which causes a Denial of Service for Data Plane traffic. TMM takes the configured HA action when the TMM process is aborted. There is no control plane exposure, this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
SeverityHigh
CVSS7.5
Exploit probability—
Product
F5 Big-ip Access Policy Manager
PublishedMay 10, 2021
First seenMay 10, 2021
How to fix
Update
- f5 big-ip_access_policy_manager15.1.3, 16.0.1.1 or later
- f5 big-ip_advanced_firewall_manager15.1.3, 16.0.1.1 or later
- f5 big-ip_advanced_web_application_firewall15.1.3, 16.0.1.1 or later
- f5 big-ip_analytics15.1.3, 16.0.1.1 or later
- f5 big-ip_application_acceleration_manager15.1.3, 16.0.1.1 or later
- f5 big-ip_application_security_manager15.1.3, 16.0.1.1 or later
- f5 big-ip_ddos_hybrid_defender15.1.3, 16.0.1.1 or later
- f5 big-ip_domain_name_system15.1.3, 16.0.1.1 or later
- f5 big-ip_fraud_protection_service15.1.3, 16.0.1.1 or later
- f5 big-ip_global_traffic_manager15.1.3, 16.0.1.1 or later
- f5 big-ip_link_controller15.1.3, 16.0.1.1 or later
- f5 big-ip_local_traffic_manager15.1.3, 16.0.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| f5 big-ip_access_policy_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_advanced_firewall_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_advanced_web_application_firewall | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_analytics | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_application_acceleration_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_application_security_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_ddos_hybrid_defender | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_domain_name_system | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_fraud_protection_service | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_global_traffic_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_link_controller | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_local_traffic_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_policy_enforcement_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
| f5 big-ip_ssl_orchestrator | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.1 | 15.1.3, 16.0.1.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.