Resource management error in BIG-IP LTM - CVE-2019-6686
Published: December 28, 2019
Vulnerability identifier: #VU23817
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2019-6686
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: F5 Networks
Affected software:
BIG-IP LTM
BIG-IP LTM
Detailed vulnerability description
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.
How to mitigate CVE-2019-6686
Install updates from vendor's website.