Upstream information

CVE-2018-14644 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.3
Vector AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.9 5.3
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Access Vector Network Network
Access Complexity High Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High Low
CVSSv3 Version 3 3
SUSE Bugzilla entries: 1114157 [RESOLVED / FIXED], 1114169 [RESOLVED / FIXED], 1114170 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub for SUSE Linux Enterprise 12 SP1
  • pdns-recursor >= 4.1.8-13.1
  • pdns-recursor-debuginfo >= 4.1.8-13.1
  • pdns-recursor-debugsource >= 4.1.8-13.1
Patchnames:
openSUSE-2018-1524
openSUSE Leap 15.0
  • pdns-recursor >= 4.1.2-lp150.2.3.1
  • pdns-recursor-debuginfo >= 4.1.2-lp150.2.3.1
  • pdns-recursor-debugsource >= 4.1.2-lp150.2.3.1
Patchnames:
openSUSE-2019-988
openSUSE Leap 42.3
  • pdns-recursor >= 4.0.5-9.1
  • pdns-recursor-debuginfo >= 4.0.5-9.1
  • pdns-recursor-debugsource >= 4.0.5-9.1
Patchnames:
openSUSE-2018-1564


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 pdns Not affected
SUSE Openstack Cloud 8 pdns Not affected