NULL pointer dereference in BIG-IP - CVE-2022-23020
Published: January 20, 2022
Vulnerability identifier: #VU59873
CSH Severity: Medium
CVSSv4.0: 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: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
BIG-IP
BIG-IP
Software vendor:
F5 Networks
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.
Remediation
Install update from vendor's website.