CVE-2021-22991

CVSS V2 Medium 6.8 CVSS V3 Critical 9.8
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.
Overview
  • CVE ID
  • CVE-2021-22991
  • Assigner
  • f5sirt@f5.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-31T18:15:14
  • Last Modified Date
  • 2022-07-12T17:42:04
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.3
cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.6
cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* 1 OR 14.1.0 14.1.4
cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* 1 OR 15.1.0 15.1.2.1
cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:* 1 OR 16.0.0 16.0.1.1
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://support.f5.com/csp/article/K56715231 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-22991
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22991
History
Created Old Value New Value Data Type Notes
2022-05-10 07:17:18 Added to TrackCVE
2022-12-06 00:46:01 2021-03-31T18:15Z 2021-03-31T18:15:14 CVE Published Date updated
2022-12-06 00:46:02 2022-07-12T17:42:04 CVE Modified Date updated
2022-12-06 00:46:02 Analyzed Vulnerability Status updated