Resource management error in BIG-IP LTM - CVE-2019-6686
Published: December 28, 2019
Vulnerability identifier: #VU23817
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-6686
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
BIG-IP LTM
How to mitigate CVE-2019-6686
Install updates from vendor's website.
BIG-IP LTM - addressed in versions 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.1.0