A crafted response from an upstream server the recursor has been configured to forward-recurse to can cause a Denial of Service in the Recursor. The default configuration of the Recursor does not use recursive forwarding and is not affected.
{ "binaries": [ { "binary_version": "4.0.0~alpha2-2ubuntu0.1+esm1", "binary_name": "pdns-recursor" } ] }
{ "binaries": [ { "binary_version": "4.1.1-2ubuntu0.1~esm1", "binary_name": "pdns-recursor" } ] }
{ "binaries": [ { "binary_version": "4.2.1-1ubuntu0.1~esm1", "binary_name": "pdns-recursor" } ] }
{ "binaries": [ { "binary_version": "4.6.0-1ubuntu1", "binary_name": "pdns-recursor" } ] }
{ "binaries": [ { "binary_version": "4.9.3-1build3", "binary_name": "pdns-recursor" } ] }