#VU59873 NULL pointer dereference in BIG-IP - CVE-2022-23020

Vulnerability identifier: #VU59873

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-2022-23020

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP
Hardware solutions / Firmware

Vendor: F5 Networks

Description

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

The vulnerability exists due to a NULL pointer dreference error when the 'Respond on Error' setting is enabled on the Request Logging profile and configured on a virtual server. A remote non-authenticated attacker can send specially crafted requests to the system and cause the Traffic Management Microkernel (TMM) to terminate.

Mitigation
Install update from vendor's website.

Vulnerable software versions

BIG-IP: 16.1.0 - 16.1.1

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External links
https://support.f5.com/csp/article/K17514331

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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.