Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "libunbound-dev" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "libunbound2" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "libunbound2-dbgsym" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "python-unbound" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "python-unbound-dbgsym" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "python3-unbound" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "python3-unbound-dbgsym" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "unbound" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "unbound-anchor" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "unbound-anchor-dbgsym" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "unbound-dbgsym" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "unbound-host" }, { "binary_version": "1.6.7-1ubuntu2.3", "binary_name": "unbound-host-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "libunbound-dev" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "libunbound8" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "libunbound8-dbgsym" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "python-unbound" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "python-unbound-dbgsym" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "python3-unbound" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "python3-unbound-dbgsym" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "unbound" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "unbound-anchor" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "unbound-anchor-dbgsym" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "unbound-dbgsym" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "unbound-host" }, { "binary_version": "1.9.4-2ubuntu1.1", "binary_name": "unbound-host-dbgsym" } ] }