CVE-2021-23009
At a glance Severity Not available EPSS EPSS 0.99 % · percentile 62 (2026-10-27) State PUBLISHED Published 2021-05-10 Updated 2024-08-03 Assigner f5 NVD status Modified 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.
Scores Version Score Vector Scored by CVSS 3.1 HIGH 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD · nvd@nist.gov (Primary) CVSS 2.0 MEDIUM 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P NVD · nvd@nist.gov (Primary)
Weaknesses (CWE)
European references
CERT-FR advisories
Affected configurations (NVD CPE) cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.3cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1.1Affected products Product Versions BIG-IP affected 16.0.x before 16.0.1.1 and 15.1.x before 15.1.3
References
Sources
