An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
{ "binaries": [ { "binary_version": "4.9.3-1build3", "binary_name": "pdns-recursor" } ] }
{ "binaries": [ { "binary_version": "5.2.0-5", "binary_name": "pdns-recursor" } ] }
{ "binaries": [ { "binary_version": "5.2.4-2build2", "binary_name": "pdns-recursor" } ] }
{ "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+esm1", "binary_name": "pdns-recursor" } ] }