#VU49076 Resource management error in BIG-IP AFM - CVE-2020-27714

Vulnerability identifier: #VU49076

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-27714

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP AFM
Hardware solutions / Security hardware applicances

Vendor: F5 Networks

Description

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

The vulnerability exists due to improper management of internal resources. The BIG-IP AFM, when a Protocol Inspection Profile is attached to a FastL4 virtual server with the protocol field configured to either Other or All Protocols, the TMM may experience a restart if the profile processes non-TCP traffic.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP AFM: 11.6.1 HF1 - 15.1.0.5

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External links
https://support.f5.com/csp/article/K60344652

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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.