CVE-2018-14644
Published: 9 November 2018
An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4. A remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.
Priority
Status
Package | Release | Status |
---|---|---|
pdns Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Needs triage
|
|
kinetic |
Ignored
(end of life, was needs-triage)
|
|
lunar |
Ignored
(end of life, was needs-triage)
|
|
mantic |
Needs triage
|
|
trusty |
Does not exist
(trusty was needs-triage)
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
pdns-recursor Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Not vulnerable
(4.2.0-6)
|
|
focal |
Not vulnerable
(4.2.0-6)
|
|
groovy |
Not vulnerable
(4.2.0-6)
|
|
hirsute |
Not vulnerable
(4.2.0-6)
|
|
impish |
Not vulnerable
(4.2.0-6)
|
|
jammy |
Not vulnerable
(4.2.0-6)
|
|
kinetic |
Not vulnerable
(4.2.0-6)
|
|
lunar |
Not vulnerable
(4.2.0-6)
|
|
mantic |
Not vulnerable
(4.2.0-6)
|
|
trusty |
Does not exist
(trusty was needs-triage)
|
|
upstream |
Released
(4.1.7-1)
|
|
xenial |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |