CVE-2019-6647

MEDIUM

F5 Big-ip Local Traffic Manager < 11.6.4 - Memory Leak

Title source: rule

Description

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.2, 12.1.0-12.1.4.1, 11.5.2-11.6.4, when processing authentication attempts for control-plane users MCPD leaks a small amount of memory. Under rare conditions attackers with access to the management interface could eventually deplete memory on the system.

References (1)

[Vendor Advisory] https://support.f5.com/csp/article/K87920510

Scores

CVSS v3 5.3

EPSS 0.0046

EPSS Percentile 63.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Classification

CWE

CWE-401

Status published

Affected Products (39)

f5/big-ip_local_traffic_manager < 11.6.4

f5/big-ip_local_traffic_manager

f5/big-ip_advanced_firewall_manager < 11.6.4

f5/big-ip_advanced_firewall_manager

f5/big-ip_application_acceleration_manager < 11.6.4

f5/big-ip_application_acceleration_manager

f5/big-ip_analytics < 11.6.4

f5/big-ip_analytics

f5/big-ip_access_policy_manager < 11.6.4

f5/big-ip_access_policy_manager

... and 24 more

Timeline

Published Sep 04, 2019

Tracked Since Feb 18, 2026