CVE-2020-5871

HIGH

F5 BIG-IP 14.1.0-14.1.2.3 - Denial of Service via HTTP/2 Virtual Server

Title source: llm
STIX 2.1

Description

On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K43450419

Scores

CVSS v3 7.5
EPSS 0.0065
EPSS Percentile 71.0%
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 14.1.0 - 14.1.2.3
f5/big-ip_advanced_firewall_manager 14.1.0 - 14.1.2.3
f5/big-ip_analytics 14.1.0 - 14.1.2.3
f5/big-ip_application_acceleration_manager 14.1.0 - 14.1.2.3
f5/big-ip_application_security_manager 14.1.0 - 14.1.2.3
f5/big-ip_domain_name_system 14.1.0 - 14.1.2.3
f5/big-ip_fraud_protection_service 14.1.0 - 14.1.2.3
f5/big-ip_global_traffic_manager 14.1.0 - 14.1.2.3
f5/big-ip_link_controller 14.1.0 - 14.1.2.3
f5/big-ip_local_traffic_manager 14.1.0 - 14.1.2.3
... and 1 more
Published Apr 30, 2020
Tracked Since Feb 18, 2026