Vulnerability in F5 Big-Ip
CVE-2020-5852
Undisclosed traffic patterns received may cause a disruption of service to the Traffic Management Microkernel (TMM). This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. This issue only impacts specific engineering hotfixes. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.2.1.0.83.4-ENG Hotfix-BIGIP-12.1.4.1.0.97.6-ENG Hotfix-BIGIP-11.5.4.2.74.291-HF2
EPSS: 0.012 (65.1th 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 Hotfix-BIGIP-14.1.2.1.0.83.4-ENG, Hotfix-BIGIP-12.1.4.1.0.97.6-ENG, Hotfix-BIGIP-11.5.4.2.74.291-HF2
- F5 Big-ip_access_policy_manager — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_advanced_firewall_manager — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_analytics — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_application_acceleration_manager — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_application_security_manager — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_domain_name_system — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_edge_gateway — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_fraud_protection_service — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
- F5 Big-ip_global_traffic_manager — versions 11.5.4.2.74.291, 12.1.4.1.0.97.6, 14.1.2.1.0.83.4
References
- f5sirt@f5.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-5852?
- CVE-2020-5852 is a high-severity vulnerability in F5 Big-Ip. CVSS score: 7.5/10. Published 2020-01-14.
- How severe is CVE-2020-5852?
- High severity. CVSS v3 base score is 7.5 out of 10.