CVE-2016-7068
Published: 11 September 2018
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.
Priority
Status
Package | Release | Status |
---|---|---|
pdns
Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Not vulnerable
(4.0.2-1)
|
|
cosmic |
Not vulnerable
(4.0.2-1)
|
|
disco |
Not vulnerable
(4.0.2-1)
|
|
eoan |
Not vulnerable
(4.0.2-1)
|
|
focal |
Not vulnerable
(4.0.2-1)
|
|
groovy |
Not vulnerable
(4.0.2-1)
|
|
hirsute |
Not vulnerable
(4.0.2-1)
|
|
impish |
Not vulnerable
(4.0.2-1)
|
|
jammy |
Not vulnerable
(4.0.2-1)
|
|
kinetic |
Not vulnerable
(4.0.2-1)
|
|
lunar |
Not vulnerable
(4.0.2-1)
|
|
mantic |
Not vulnerable
(4.0.2-1)
|
|
noble |
Not vulnerable
(4.0.2-1)
|
|
precise |
Ignored
(end of life)
|
|
trusty |
Does not exist
(trusty was needed)
|
|
upstream |
Released
(4.0.2-1)
|
|
xenial |
Needed
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
pdns-recursor
Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.0.4-1)
|
bionic |
Not vulnerable
(4.0.4-1)
|
|
cosmic |
Not vulnerable
(4.0.4-1)
|
|
disco |
Not vulnerable
(4.0.4-1)
|
|
eoan |
Not vulnerable
(4.0.4-1)
|
|
focal |
Not vulnerable
(4.0.4-1)
|
|
groovy |
Not vulnerable
(4.0.4-1)
|
|
hirsute |
Not vulnerable
(4.0.4-1)
|
|
impish |
Not vulnerable
(4.0.4-1)
|
|
jammy |
Not vulnerable
(4.0.4-1)
|
|
kinetic |
Not vulnerable
(4.0.4-1)
|
|
lunar |
Not vulnerable
(4.0.4-1)
|
|
mantic |
Not vulnerable
(4.0.4-1)
|
|
noble |
Not vulnerable
(4.0.4-1)
|
|
precise |
Ignored
(end of life)
|
|
trusty |
Released
(3.5.3-1ubuntu0.1)
|
|
upstream |
Released
(4.0.4-1)
|
|
xenial |
Needed
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Not vulnerable
(4.0.4-1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |