Upstream information

CVE-2020-25829 at MITRE

Description

An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).

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 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1177383 [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 >= 4.1.18-25.1
  • pdns-recursor-debuginfo >= 4.3.5-lp152.2.6.1
  • pdns-recursor-debugsource >= 4.3.5-lp152.2.6.1
Patchnames:
openSUSE-2020-1687
SUSE Package Hub for SUSE Linux Enterprise 15 SP1
  • pdns-recursor >= 4.1.12-bp151.4.9.1
  • pdns-recursor-debuginfo >= 4.1.12-bp151.4.9.1
  • pdns-recursor-debugsource >= 4.1.12-bp151.4.9.1
Patchnames:
openSUSE-2020-1687
SUSE Package Hub for SUSE Linux Enterprise 15 SP2
  • pdns-recursor >= 4.3.5-bp152.2.12.1
  • pdns-recursor-debuginfo >= 4.3.5-bp152.2.12.1
  • pdns-recursor-debugsource >= 4.3.5-bp152.2.12.1
Patchnames:
openSUSE-2020-1687
openSUSE Leap 15.1
  • pdns-recursor >= 4.1.12-lp151.3.9.1
  • pdns-recursor-debuginfo >= 4.1.12-lp151.3.9.1
  • pdns-recursor-debugsource >= 4.1.12-lp151.3.9.1
Patchnames:
openSUSE-2020-1687
openSUSE Leap 15.2
  • pdns-recursor >= 4.3.5-lp152.2.6.1
  • pdns-recursor-debuginfo >= 4.3.5-lp152.2.6.1
  • pdns-recursor-debugsource >= 4.3.5-lp152.2.6.1
Patchnames:
openSUSE-2020-1687