PowerDNS: Denial of service

PowerDNS: Denial of service A vulnerability in PowerDNS could allow a remote attacker to create a Denial of Service condition. pdns 2012-02-22 2012-02-22 398403 remote 3.0.1 3.0.1

The PowerDNS nameserver is an authoritative-only nameserver which uses a flexible backend architecture.

A vulnerability has been found in PowerDNS which could cause a packet loop of DNS responses.

A remote attacker could send specially crafted DNS response packets, possibly resulting in a Denial of Service condition.

PowerDNS users can set "cache-ttl=0" in /etc/powerdns/pdns.conf and then restart the PowerDNS daemon:


      # /etc/init.d/pdns restart

Please review the PowerDNS Security Advisory below for more workaround details.

All PowerDNS users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-dns/pdns-3.0.1"

CVE-2012-0206 PowerDNS Security Advisory 2012-01 ackle ackle