#VU59836 NULL pointer dereference in BIG-IP - CVE-2022-23022

Vulnerability identifier: #VU59836

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-2022-23022

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 during HTTP protocol inspection. A remote attacker can send specially crafted HTTP request through the affected system, trigger a NULL pointer dereference error and crash the Traffic Management Microkernel (TMM) process.

Successful exploitation of the vulnerability requires that Virtual Servers with HTTP profile is configured.

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/K96924184

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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.