Description
An attacker can leverage this flaw to gradually erode available memory to the point where named crashes for lack of resources. Upon restart the attacker would have to begin again, but nevertheless there is the potential to deny service.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- ISC / BIND9Open Source Branch 9.18 9.18.0 through versions before 9.18.7 – Open Source Branch 9.18 9.18.0 through versions before 9.18.7
- ISC / BIND9Development Branch 9.19 9.19.0 through versions before 9.19.5 – Development Branch 9.19 9.19.0 through versions before 9.19.5