Denial of service in F5 Networks BIG-IP LTM

1) Resource management error

EUVDB-ID: #VU23817

Risk: Medium

CVSSv4.0: 2.7 [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 - Resource Management Errors

Exploit availability: No

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP LTM: 13.1.0 - 15.0.1.1

CPE2.3

• cpe:2.3:h:f5_networks:big-ip_ltm:13.1.0:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:13.1.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip_ltm:13.1.0.2:*:*:*:*:*:*:*

External links

https://support.f5.com/csp/article/K55812535

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.