CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
19.5%
libbind9.so is vulnerable to Denial of Service. The vulnerability is due to the handling of “KEY” Resource Records in DNSSEC-signed domains, allowing attackers to exhaust resolver CPU resources by sending a stream of SIG(0) signed requests.