Description
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- PowerDNS / Recursor5.2.0 – 5.2.11
- PowerDNS / Recursor5.3.0 – 5.3.8
- PowerDNS / Recursor5.4.0 – 5.4.3