Resource exhaustion in F5 Big-Ip
CVE-2022-26372
On F5 BIG-IP 15.1.x versions prior to 15.1.0.2, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, when a DNS listener is configured on a virtual server with DNS queueing (default), undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.009 (55.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- F5 Big-ip — versions 12.1.x, 11.6.x, 16.0.0
- F5 Big-ip_access_policy_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_advanced_firewall_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_analytics — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_application_acceleration_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_application_security_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_domain_name_system — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_fraud_protection_service — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_global_traffic_manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-ip_link_controller — versions 11.6.1, 11.6.2, 11.6.3
Weakness classification (CWE)
References
- f5sirt@f5.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26372?
- CVE-2022-26372 is a high-severity vulnerability in F5 Big-Ip, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-05-05.
- How severe is CVE-2022-26372?
- High severity. CVSS v3 base score is 7.5 out of 10.