SB2019122026 - Denial of service in F5 Networks BIG-IP LTM



SB2019122026 - Denial of service in F5 Networks BIG-IP LTM

Published: December 20, 2019 Updated: December 28, 2019

Security Bulletin ID SB2019122026
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Resource management error (CVE-ID: CVE-2019-6686)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error within the Message Routing Framework (MRF) in Traffic Management Microkernel (TMM). A remote attacker can force the TMM to stop responding after the total number of diameter connections and pending messages on a single virtual server has reached 32K.


Remediation

Install update from vendor's website.