bind: incorrect enforcement of update-policy rules of type "subdomain"

A flaw was found in bind. Updates to "Update-policy" rules of type "subdomain" are treated as if they were of type "zonesub" which allows updates to all parts of the zone along with the intended subdomain. The highest threat from this vulnerability is to data integrity...

ALPINE-CVE-2018-5741

To provide fine-grained controls over the ability to use Dynamic DNS DDNS to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update...

ISC BIND 9 krb5-subdomain and ms-subdomain update policy vulnerability

ISC BIND is the United States Internet Systems Consortium ISC company maintains a set of open source software that implements the DNS protocol. To provide fine-grained control over the ability to update records in a zone using Dynamic DNS DDNS, BIND provides a feature called update-policy. Variou...