Related Vulnerabilities: CVE-2019-16866  

Due to an error in parsing NOTIFY queries, it is possible for Unbound from 1.7.1 up to and including 19.3 to continue processing malformed queries and may ultimately result in a pointer dereference in uninitialized memory. This results in a crash of the Unbound daemon.

Severity High

Remote Yes

Type Denial of service

Description

Due to an error in parsing NOTIFY queries, it is possible for Unbound from 1.7.1 up to and including 19.3 to continue processing malformed queries and may ultimately result in a
pointer dereference in uninitialized memory. This results in a crash of the Unbound daemon.

AVG-1042 unbound 1.9.3-4 High Vulnerable

https://www.nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt