In BIND before version 9.16.20, if "named" attempts to respond over UDP with a response that is larger than the current effective interface maximum transmission unit (MTU), and if response-rate limiting (RRL) is active, an assertion failure is triggered (resulting in termination of the "named" server process).
In BIND before version 9.16.20, if "named" attempts to respond over UDP with a response that is larger than the current effective interface maximum transmission unit (MTU), and if response-rate limiting (RRL) is active, an assertion failure is triggered (resulting in termination of the "named" server process).
https://kb.isc.org/docs/cve-2021-25218 https://downloads.isc.org/isc/bind9/9.16.20/patches/CVE-2021-25218.patch https://github.com/isc-projects/bind9/commit/f9571bbc5fd7ca7067e80058758fc7b5be8b951a
Vulmon