PT-2022-15789 · F5 · Big-Ip

Published 2022-01-25 · Updated 2022-02-01 · CVE-2022-23021

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions BIG-IP versions 16.1.x through 16.1.1

Description The issue arises when specific configurations are set up on a virtual server, including an HTTP redirect rule in an LTM policy, a BIG-IP APM Access Profile, and an Explicit HTTP Proxy in an HTTP Profile. These configurations can cause the Traffic Management Microkernel (TMM) to terminate upon receiving undisclosed requests.

Recommendations For BIG-IP versions 16.1.x through 16.1.1, update to version 16.1.2 or later to resolve the issue. As a temporary workaround, consider disabling the HTTP redirect rule in the LTM policy, the BIG-IP APM Access Profile, and the Explicit HTTP Proxy in the HTTP Profile to prevent TMM termination until a patch is applied.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2022-23021

Affected Products

Big-Ip

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2022-23021 · Security Note
• https://support.f5.com/csp/article/K57111075 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-23021 · Vendor Advisory
• https://t.me/cvenotify/26130 · Telegram Post