NULL pointer dereference in BIG-IP - CVE-2022-23021

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Main Vulnerability Database Vulnerabilities #VU59891

NULL pointer dereference in BIG-IP - CVE-2022-23021

Published: January 20, 2022


Vulnerability identifier: #VU59891
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-2022-23021
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
BIG-IP
Software 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 dereference error. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

This vulnerability affects the Virtual server with any of the following profiles or policies configured:

  • HTTP redirect rule in an LTM policy
  • BIG-IP APM Access Profile
  • Explicit HTTP Proxy in the HTTP Profile

Remediation

Install update from vendor's website.

External links