CVE-2020-27721: High severity f5 big-ip vulnerability
In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2020-27721?
CVE-2020-27721 is categorized as a medium severity vulnerability.
How do I fix CVE-2020-27721?
To fix CVE-2020-27721, upgrade to the appropriate patched version of BIG-IP DNS or BIG-IP LTM as specified in F5's advisory.
What versions are affected by CVE-2020-27721?
CVE-2020-27721 affects versions 11.6.1 to 11.6.5.2, 12.1.0 to 12.1.5.2, 13.1.0 to 13.1.3.5, 14.1.0 to 14.1.3, 15.0.0 to 15.1.1, and 16.0.0 to 16.0.0.1.
What is the impact of CVE-2020-27721 on BIG-IP DNS?
The impact of CVE-2020-27721 is that the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS responses under certain circumstances.
Is CVE-2020-27721 exploitable remotely?
CVE-2020-27721 can potentially be exploited remotely, depending on the specific configuration and network environment.