7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
7.5 High
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.009 Low
EPSS
Percentile
82.7%
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | pdns | < 4.0.2-1 | pdns_4.0.2-1_all.deb |
Debian | 11 | all | pdns | < 4.0.2-1 | pdns_4.0.2-1_all.deb |
Debian | 999 | all | pdns | < 4.0.2-1 | pdns_4.0.2-1_all.deb |
Debian | 13 | all | pdns | < 4.0.2-1 | pdns_4.0.2-1_all.deb |
Debian | 12 | all | pdns-recursor | < 4.0.4-1 | pdns-recursor_4.0.4-1_all.deb |
Debian | 11 | all | pdns-recursor | < 4.0.4-1 | pdns-recursor_4.0.4-1_all.deb |
Debian | 999 | all | pdns-recursor | < 4.0.4-1 | pdns-recursor_4.0.4-1_all.deb |
Debian | 13 | all | pdns-recursor | < 4.0.4-1 | pdns-recursor_4.0.4-1_all.deb |
7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
7.5 High
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.009 Low
EPSS
Percentile
82.7%