CVE-2021-22991
BIG-IP
At a glance
- Source
- NVD
- EPSS
- EPSS 62.42 % · percentile 99 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- f5
- NVD status
- Analyzed
Description
On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3, undisclosed requests to a virtual server may be incorrectly handled by the Traffic Management Microkernel (TMM) URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may theoretically allow bypass of URL based access control or remote code execution (RCE). Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Weaknesses (CWE)
- CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | MEDIUM 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-10109
- GCVE · GCVE-0-2021-22991
CERT-FR advisories
- CERTFR-2021-AVI-189 — Multiples vulnérabilités dans F5 BIG-IP · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*≥ 12.1.0 < 12.1.5.3cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*≥ 13.1.0 < 13.1.3.6cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*≥ 14.1.0 < 14.1.4cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*≥ 15.1.0 < 15.1.2.1cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*≥ 16.0.0 < 16.0.1.1- +30 more
Affected products
| Product | Versions |
|---|---|
| BIG-IP | affected 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |