ID:4503 - Exploit for Reachable Assertion in ISC BIND - CVE-2020-8620

Link to public exploit:

Vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion in tcpdns.c when processing large TCP payloads. An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit.

Remediation