Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2020-25829

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).

Published

2020-10-16T06:15:12.357

Last Modified

2024-11-21T05:18:51.467

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 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
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application powerdns recursor < 4.1.18 Yes
Application powerdns recursor < 4.2.5 Yes
Application powerdns recursor < 4.3.5 Yes
Application opensuse backports_sle 15.0 Yes
Application opensuse backports_sle 15.0 Yes
Operating System opensuse leap 15.1 Yes
Operating System opensuse leap 15.2 Yes
References