Vulnerability in F5 Big-Ip Domain Name System
CVE-2020-27725
In version 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2 of BIG-IP DNS, GTM, and Link Controller, zxfrd leaks memory when listing DNS zones. Zones can be listed via TMSH, iControl or SNMP; only users with access to those services can trigger this vulnerability.
EPSS: 0.008 (52.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- F5 Big-ip_domain_name_system
- F5 Big-ip_global_traffic_manager
- F5 Big-ip_link_controller
- N/a Big-ip Dns, Gtm, And Link Controller — versions 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, 11.6.1-11.6.5.2
Weakness classification (CWE)
References
- f5sirt@f5.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-27725?
- CVE-2020-27725 is a medium-severity vulnerability in F5 Big-Ip Domain Name System, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 4.3/10. Published 2020-12-24.
- How severe is CVE-2020-27725?
- Medium severity. CVSS v3 base score is 4.3 out of 10.