CVE-2021-22991

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

https://support.f5.com/csp/article/K56715231

Details

Source: MITRE

Published: 2021-03-31

Updated: 2021-04-05

Type: CWE-120

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
147623F5 Networks BIG-IP : TMM buffer-overflow vulnerability (K56715231)NessusF5 Networks Local Security Checks
critical