CVE-2019-6677

HIGH

BIG-IP 12.1.0-12.1.5, 13.1.0-13.1.3.1, 14.0.0-14.0.1, 14.1.0-14.1.2, 15.0.0-15.0.1 DoS via TCP Congestion Control

Title source: llm
STIX 2.1

Description

On BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.5, under certain conditions when using custom TCP congestion control settings in a TCP profile, TMM stops processing traffic when processed by an iRule.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K06747393

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 12.1.0 - 12.1.5
f5/big-ip_advanced_firewall_manager 12.1.0 - 12.1.5
f5/big-ip_analytics 12.1.0 - 12.1.5
f5/big-ip_application_acceleration_manager 12.1.0 - 12.1.5
f5/big-ip_application_security_manager 12.1.0 - 12.1.5
f5/big-ip_domain_name_system 12.1.0 - 12.1.5
f5/big-ip_fraud_protection_service 12.1.0 - 12.1.5
f5/big-ip_global_traffic_manager 12.1.0 - 12.1.5
f5/big-ip_link_controller 12.1.0 - 12.1.5
f5/big-ip_local_traffic_manager 12.1.0 - 12.1.5
... and 1 more
Published Dec 23, 2019
Tracked Since Feb 18, 2026