Advisories ยป MGASA-2020-0393

Updated pdns-recursor package fixes a security vulnerability

Publication date: 24 Oct 2020
Type: security
Affected Mageia releases : 7
CVE: 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). (CVE-2020-25829)