CVE-2021-23049
High
Description
On BIG-IP version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3, when the iRules RESOLVER::summarize command is used on a virtual server, undisclosed requests can cause an increase in Traffic Management Microkernel (TMM) memory utilization resulting in an out-of-memory condition and a denial-of-service (DoS). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
SeverityHigh
CVSS7.5
Exploit probability62. percentile1%
Product
F5 Big-ip Access Policy Manager
PublishedSep 14, 2021
First seenSep 14, 2021
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- f5 big-ip_access_policy_manager15.1.3, 16.0.1.2 or later
- f5 big-ip_advanced_firewall_manager15.1.3, 16.0.1.2 or later
- f5 big-ip_advanced_web_application_firewall15.1.3, 16.0.1.2 or later
- f5 big-ip_analytics15.1.3, 16.0.1.2 or later
- f5 big-ip_application_acceleration_manager15.1.3, 16.0.1.2 or later
- f5 big-ip_application_security_manager15.1.3, 16.0.1.2 or later
- f5 big-ip_domain_name_system15.1.3, 16.0.1.2 or later
- f5 big-ip_fraud_protection_service15.1.3, 16.0.1.2 or later
- f5 big-ip_global_traffic_manager15.1.3, 16.0.1.2 or later
- f5 big-ip_link_controller15.1.3, 16.0.1.2 or later
- f5 big-ip_local_traffic_manager15.1.3, 16.0.1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| f5 big-ip_access_policy_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_advanced_firewall_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_advanced_web_application_firewall | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_analytics | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_application_acceleration_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_application_security_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_domain_name_system | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_fraud_protection_service | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_global_traffic_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_link_controller | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
| f5 big-ip_local_traffic_manager | 15.1.0 ≤ v < 15.1.3, 16.0.0 ≤ v < 16.0.1.2 | 15.1.3, 16.0.1.2 |
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