PowerDNS Recursor: Denial of service A vulnerability in PowerDNS Recursor could lead to a Denial of Service condition. pdns-recursor 2020-12-23 2020-12-23 746923 remote 4.3.5 4.3.5

PowerDNS Recursor is a high-end, high-performance resolving name server.

It was discovered that it was possible to update the DNSSEC validation state to a bogus state for a cached record via DNS ANY query.

A remote attacker could send specially crafted DNS queries to deny DNSSEC validation.

There is no known workaround at this time.

All PowerDNS Recursor users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-recursor-4.3.5" CVE-2020-25829 PowerDNS Security Advisory 2020-07 whissi whissi