CVE-2020-5941
At a glance Severity Not available EPSS EPSS 1.04 % · percentile 64 (2026-10-27) State PUBLISHED Published 2020-11-05 Updated 2024-08-04 Assigner f5 NVD status Modified Description On BIG-IP versions 16.0.0-16.0.0.1 and 15.1.0-15.1.0.5, using the RESOLV::lookup command within an iRule may cause the Traffic Management Microkernel (TMM) to generate a core file and restart. This issue occurs when data exceeding the maximum limit of a hostname passes to the RESOLV::lookup command.
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)
European references
CERT-FR advisories
Affected configurations (NVD CPE) cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* ≥ 15.1.0 < 15.1.1cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* ≥ 16.0.0 < 16.0.1Affected products Product Versions BIG-IP affected 16.0.0-16.0.0.1, 15.1.0-15.1.0.5
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