CVE-2020-5931

HIGH

F5 BIG-IP DoS via WebSocket HTTP Response Headers

Title source: llm
STIX 2.1

Description

On BIG-IP 15.1.0-15.1.0.5, 14.1.0-14.1.2.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, Virtual servers with a OneConnect profile may incorrectly handle WebSockets related HTTP response headers, causing TMM to restart.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K25400442

Scores

CVSS v3 7.5
EPSS 0.0089
EPSS Percentile 75.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (11)
f5/big-ip_access_policy_manager 11.6.1 - 11.6.5.2
f5/big-ip_advanced_firewall_manager 11.6.1 - 11.6.5.2
f5/big-ip_analytics 11.6.1 - 11.6.5.2
f5/big-ip_application_acceleration_manager 11.6.1 - 11.6.5.2
f5/big-ip_application_security_manager 11.6.1 - 11.6.5.2
f5/big-ip_domain_name_system 11.6.1 - 11.6.5.2
f5/big-ip_fraud_protection_service 11.6.1 - 11.6.5.2
f5/big-ip_global_traffic_manager 11.6.1 - 11.6.5.2
f5/big-ip_link_controller 11.6.1 - 11.6.5.2
f5/big-ip_local_traffic_manager 11.5.2 - 11.6.5.2
... and 1 more
Published Oct 29, 2020
Tracked Since Feb 18, 2026