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CVE-2021-23000 Details
Description
On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2, if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system, or the Bad host header value is checked in the AFM HTTP security profile associated with a virtual server, in rare instances, a specific sequence of malicious requests may cause TMM to restart. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.f5.com/csp/article/K34441555 | CVE | Vendor Advisory |
| https://support.f5.com/csp/article/K34441555 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| f5 big-ip access policy manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip advanced firewall manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip advanced web application firewall | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip analytics | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip application acceleration manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip application security manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip ddos hybrid defender | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip domain name system | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip fraud protection service | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip global traffic manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip link controller | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip local traffic manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 big-ip policy enforcement manager | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
| f5 ssl orchestrator | >= 13.1.3.4, < 13.1.3.6 12.1.5.2 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Apr 5, 2021 | Initial Analysis | [email protected] |