CVE-2020-27725: Medium severity f5 big-ip vulnerability

Published Dec 24, 2020
·
Updated

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.

Affected Software

15 affected components
F5 Big-ip Domain Name System>=11.6.1<=11.6.5
F5 Big-ip Domain Name System>=12.1.0<=12.1.5
F5 Big-ip Domain Name System>=13.1.0<13.1.3.5
F5 Big-ip Domain Name System>=14.1.0<14.1.3.1
F5 Big-ip Domain Name System>=15.0.0<15.1.1
F5 Big-ip Global Traffic Manager>=11.6.1<=11.6.5
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.5
F5 Big-ip Global Traffic Manager>=13.1.0<13.1.3.5
F5 Big-ip Global Traffic Manager>=14.1.0<14.1.3.1
F5 Big-ip Global Traffic Manager>=15.0.0<15.1.1
F5 Big-ip Link Controller>=11.6.1<=11.6.5
F5 Big-ip Link Controller>=12.1.0<=12.1.5
F5 Big-ip Link Controller>=13.1.0<13.1.3.5
F5 Big-ip Link Controller>=14.1.0<14.1.3.1
F5 Big-ip Link Controller>=15.0.0<15.1.1

Event History

Dec 24, 2020
CVE Published
via MITRE·03:01 PM
Data Sourced
via MITRE·03:01 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2020-27725?

CVE-2020-27725 has been classified as a Medium severity vulnerability.

2

How do I fix CVE-2020-27725?

To remediate CVE-2020-27725, you should upgrade your F5 BIG-IP DNS, GTM, or Link Controller to a version that is not affected by this vulnerability.

3

What versions are affected by CVE-2020-27725?

CVE-2020-27725 affects F5 BIG-IP versions ranging from 11.6.1 to 15.1.0.5, including several intermediate versions.

4

Can CVE-2020-27725 be exploited remotely?

CVE-2020-27725 requires local access via TMSH, iControl, or SNMP, so it cannot be exploited remotely.

5

What type of data is leaked in CVE-2020-27725?

CVE-2020-27725 causes a memory leak when listing DNS zones, potentially exposing sensitive data.

Company

Resources

Contact

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