Vulnerability Details CVE-2020-5929
In versions 13.0.0-13.0.0 HF2, 12.1.0-12.1.2 HF1, and 11.6.1-11.6.2, BIG-IP platforms with Cavium Nitrox SSL hardware acceleration cards, a Virtual Server configured with a Client SSL profile, and using Anonymous (ADH) or Ephemeral (DHE) Diffie-Hellman key exchange and Single DH use option not enabled in the options list may be vulnerable to crafted SSL/TLS Handshakes that may result with a PMS (Pre-Master Secret) that starts in a 0 byte and may lead to a recovery of plaintext messages as BIG-IP TLS/SSL ADH/DHE sends different error messages acting as an oracle. Similar error messages when PMS starts with 0 byte coupled with very precise timing measurement observation may also expose this vulnerability.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.3%
CVSS Severity
CVSS v3 Score 5.9
CVSS v2 Score 2.6
Products affected by CVE-2020-5929
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cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.1
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cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.2
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cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.0
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cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.1
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cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.2
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cpe:2.3:a:f5:big-ip_access_policy_manager:13.0.0
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cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.1
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cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.2
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cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.0
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cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.1
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cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.2
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cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.0.0
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cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:11.6.1
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cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:11.6.2
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cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:12.1.0
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cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:12.1.1
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cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:12.1.2
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cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:13.0.0
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cpe:2.3:a:f5:big-ip_analytics:11.6.1
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cpe:2.3:a:f5:big-ip_analytics:11.6.2
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cpe:2.3:a:f5:big-ip_analytics:12.1.0
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cpe:2.3:a:f5:big-ip_analytics:12.1.1
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cpe:2.3:a:f5:big-ip_analytics:12.1.2
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cpe:2.3:a:f5:big-ip_analytics:13.0.0
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cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.6.1
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cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.6.2
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cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.1.0
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cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.1.1
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cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.1.2
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cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0
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cpe:2.3:a:f5:big-ip_application_security_manager:11.6.1
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cpe:2.3:a:f5:big-ip_application_security_manager:11.6.2
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cpe:2.3:a:f5:big-ip_application_security_manager:12.1.0
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cpe:2.3:a:f5:big-ip_application_security_manager:12.1.1
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cpe:2.3:a:f5:big-ip_application_security_manager:12.1.2
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cpe:2.3:a:f5:big-ip_application_security_manager:13.0.0
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cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:11.6.1
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cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:11.6.2
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cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:12.1.0
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cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:12.1.2
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cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:13.0.0
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cpe:2.3:a:f5:big-ip_domain_name_system:11.6.1
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cpe:2.3:a:f5:big-ip_domain_name_system:11.6.2
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cpe:2.3:a:f5:big-ip_domain_name_system:12.1.0
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cpe:2.3:a:f5:big-ip_domain_name_system:12.1.1
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cpe:2.3:a:f5:big-ip_domain_name_system:12.1.2
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cpe:2.3:a:f5:big-ip_domain_name_system:13.0.0
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cpe:2.3:a:f5:big-ip_fraud_protection_service:11.6.1
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cpe:2.3:a:f5:big-ip_fraud_protection_service:11.6.2
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cpe:2.3:a:f5:big-ip_fraud_protection_service:12.1.0
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cpe:2.3:a:f5:big-ip_fraud_protection_service:12.1.1
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cpe:2.3:a:f5:big-ip_fraud_protection_service:12.1.2
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cpe:2.3:a:f5:big-ip_fraud_protection_service:13.0.0
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cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.1
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cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.2
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cpe:2.3:a:f5:big-ip_global_traffic_manager:12.1.0
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cpe:2.3:a:f5:big-ip_global_traffic_manager:12.1.1
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cpe:2.3:a:f5:big-ip_global_traffic_manager:12.1.2
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cpe:2.3:a:f5:big-ip_global_traffic_manager:13.0.0
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cpe:2.3:a:f5:big-ip_link_controller:11.6.1
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cpe:2.3:a:f5:big-ip_link_controller:11.6.2
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cpe:2.3:a:f5:big-ip_link_controller:12.1.0
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cpe:2.3:a:f5:big-ip_link_controller:12.1.1
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cpe:2.3:a:f5:big-ip_link_controller:12.1.2
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cpe:2.3:a:f5:big-ip_link_controller:13.0.0
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cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.1
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cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.2
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cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.0
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cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.1
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cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.2
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cpe:2.3:a:f5:big-ip_local_traffic_manager:13.0.0
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cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.1
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cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.2
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cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.0
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cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.1
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cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.2
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cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.0.0
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cpe:2.3:a:f5:ssl_orchestrator:11.6.1
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cpe:2.3:a:f5:ssl_orchestrator:11.6.2
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cpe:2.3:a:f5:ssl_orchestrator:12.1.0
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cpe:2.3:a:f5:ssl_orchestrator:12.1.2
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cpe:2.3:a:f5:ssl_orchestrator:13.0.0